| short_name: | ATL11 |
| Conventions: | CF-1.6 |
| contributor_name: | Thomas E Neumann (thomas.neumann@nasa.gov), Thorsten Markus (thorsten.markus@nasa.gov), Suneel Bhardwaj (suneel.bhardwaj@nasa.gov) David W Hancock III (david.w.hancock@nasa.gov) |
| date_created: | 2021-03-28T09:43:12.527214Z |
| contributor_role: | Instrument Engineer, Investigator, Principle Investigator, Data Producer, Data Producer |
| date_type: | UTC |
| description: | This data set (ATL06) provides geolocated, land-ice surface heights (above the WGS 84 ellipsoid, ITRF2014 reference frame), plus ancillary parameters that can be used to interpret and assess the quality of the height estimates. The data were acquired by th |
| featureType: | trajectory |
| geospatial_lat_max: | -78.994013705353666 |
| geospatial_lat_min: | -88.037151518302977 |
| geospatial_lat_units: | degrees_north |
| geospatial_lon_max: | 157.91705793147673 |
| geospatial_lon_min: | -3.1996854079837931 |
| geospatial_lon_units: | degrees_east |
| granule_type: | ATL11 |
| hdfversion: | HDF5 1.10.3 |
| history: | 2021-03-28T09:43:12.530806Z |
| identifier_file_uuid: | 1c98c909-d434-3149-b51e-d944af18fd28 |
| identifier_product_doi_authority: | http://dx.doi.org |
| identifier_product_format_version: | 1.0 |
| level: | L3B |
| license: | Data may not be reproduced or distributed without including the citation for this product included in this metadata. Data may not be distributed in an altered form without the written permission of the ICESat-2 Science Project Office at NASA/GSFC. |
| naming_authority: | http://dx.doi.org |
| spatial_coverage_type: | Horizontal |
| standard_name_vocabulary: | CF-1.6 |
| time_coverage_start: | 2019-05-02T06:49:32.000000Z |
| time_type: | CCSDS UTC-A |
| time_coverage_duration: | 47081066.887367249 |
| time_coverage_end: | 2020-10-28T04:53:58.000000Z |
| publisher_name: | NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center |
| publisher_email: | nsidc@nsidc.org |
| publisher_url: | http://nsidc.org/daac/ |
| identifier_product_type: | ATL11 |
| identifier_product_doi: | doi:10.5067/ATLAS/ATL11.003 |
| institution: | National Aeronautics and Space Administration (NASA) |
| creator_name: | GSFC I-SIPS > ICESat-2 Science Investigator-led Processing System |
| summary: | The purpose of ATL11 is to provide an IceSat-2 satellite cycle summary of heights and height changes of land-based ice and will be provided as input to ATL15 and ATL16, gridded estimates of heights and height-changes. |
| keywords: | EARTH SCIENCE > CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER ELEVATION/ICE SHEET ELEVATION > NONE > NONE > NONE |
| keywords_vocabulary: | NASA/GCMD Science Keywords |
| citation: | Cite these data in publications as follows: The data used in this study were produced by the ICESat-2 Science Project Office at NASA/GSFC. The data archive site is the NASA National Snow and Ice Data Center Distributed Active Archive Center. |
| processing_level: | 3B |
| references: | http://nsidc.org/data/icesat2/data.html |
| project: | ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 |
| instrument: | ATLAS > Advanced Topographic Laser Altimeter System |
| platform: | ICESat-2 > Ice, Cloud, and land Elevation Satellite-2 |
| source: | Spacecraft |
| Unlimited_Dimension: | orbit_info_crossing_time, orbit_info_sc_orient_time |
| ancillary_data_release: | Array of Strings [FakeDim0 = 0..0] long_name: Release Number units: 1 source: Operations contentType: auxiliaryInformation description: Release number of the granule. The release number is incremented when the software or ancillary data used to create the granule has been changed. origname: release fullnamepath: /ancillary_data/release |
| ancillary_data_end_geoseg: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Ending Geolocation Segment units: 1 source: Derived contentType: auxiliaryInformation description: The ending geolocation segment number associated with the data contained within this granule. ICESat granule geographic regions are further refined by geolocation segments. During the geolocation process, a geolocation segment is created approximately every 20m from the start of the orbit to the end. The geolocation segments help align the ATLAS strong a weak beams and provide a common segment length for the L2 and higher products. The geolocation segment indices differ slightly from orbit-to-orbit because of the irregular shape of the Earth. The geolocation segment indices on ATL01 and ATL02 are only approximate because beams have not been aligned at the time of their creation. origname: end_geoseg fullnamepath: /ancillary_data/end_geoseg |
| ancillary_data_version: | Array of Strings [FakeDim0 = 0..0] long_name: Version units: 1 source: Operations contentType: auxiliaryInformation description: Version number of this granule within the release. It is a sequential number corresponding to the number of times the granule has been reprocessed for the current release. origname: version fullnamepath: /ancillary_data/version |
| ancillary_data_end_region: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Ending Region units: 1 source: Derived contentType: auxiliaryInformation description: The ending product-specific region number associated with the data contained within this granule. ICESat-2 data products are separated by geographic regions. The data contained within a specific region are the same for ATL01 and ATL02. ATL03 regions differ slightly because of different geolocation segment locations caused by the irregular shape of the Earth. The region indices for other products are completely independent. origname: end_region fullnamepath: /ancillary_data/end_region |
| ancillary_data_atlas_sdp_gps_epoch: | Array of 64 bit Reals [FakeDim0 = 0..0] long_name: ATLAS Epoch Offset units: seconds since 1980-01-06T00:00:00.000000Z source: Operations contentType: auxiliaryInformation description: Number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS Standard Data Product (SDP) epoch (2018-01-01:T00.00.00.000000 UTC). Add this value to delta time parameters to compute full gps_seconds (relative to the GPS epoch) for each data point. origname: atlas_sdp_gps_epoch fullnamepath: /ancillary_data/atlas_sdp_gps_epoch |
| ancillary_data_end_rgt: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Ending Reference Groundtrack units: 1 source: Derived valid_min: 1 valid_max: 1387 contentType: auxiliaryInformation description: The ending reference groundtrack (RGT) number associated with the data contained within this granule. There are 1387 reference groundtrack in the ICESat-2 repeat orbit. The reference groundtrack increments each time the spacecraft completes a full orbit of the Earth and resets to 1 each time the spacecraft completes a full cycle. origname: end_rgt fullnamepath: /ancillary_data/end_rgt |
| ancillary_data_end_delta_time: | Array of 64 bit Reals [FakeDim0 = 0..0] long_name: ATLAS End Time (Actual) standard_name: time units: seconds since 2018-01-01 source: Derived contentType: auxiliaryInformation description: Number of GPS seconds since the ATLAS SDP epoch at the last data point in the file. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed. origname: end_delta_time fullnamepath: /ancillary_data/end_delta_time |
| ancillary_data_end_orbit: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Ending Orbit Number units: 1 source: Derived contentType: auxiliaryInformation description: The ending orbit number associated with the data contained within this granule. The orbit number increments each time the spacecraft completes a full orbit of the Earth. origname: end_orbit fullnamepath: /ancillary_data/end_orbit |
| ancillary_data_start_cycle: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Starting Cycle units: 1 source: Derived valid_min: 0 valid_max: 99 contentType: auxiliaryInformation description: The starting cycle number associated with the data contained within this granule. The cycle number is the counter of the number of 91-day repeat cycles completed by the mission. origname: start_cycle fullnamepath: /ancillary_data/start_cycle |
| ancillary_data_data_end_utc: | Array of Strings [FakeDim0 = 0..0] long_name: End UTC Time of Granule (CCSDS-A, Actual) units: 1 source: Derived contentType: auxiliaryInformation description: UTC (in CCSDS-A format) of the last data point within the granule. origname: data_end_utc fullnamepath: /ancillary_data/data_end_utc |
| ancillary_data_control: | Array of Strings [FakeDim0 = 0..0] long_name: Control File units: 1 source: Operations contentType: auxiliaryInformation description: PGE-specific control file used to generate this granule. To re-use, replace breaks (BR) with linefeeds. origname: control fullnamepath: /ancillary_data/control |
| ancillary_data_start_gpssow: | Array of 64 bit Reals [FakeDim0 = 0..0] long_name: Start GPS SOW of Granule (Actual) units: seconds source: Derived contentType: auxiliaryInformation description: GPS seconds-of-week of the first data point in the granule. origname: start_gpssow fullnamepath: /ancillary_data/start_gpssow |
| ancillary_data_granule_end_utc: | Array of Strings [FakeDim0 = 0..0] long_name: End UTC Time of Granule (CCSDS-A, Requested) units: 1 source: Derived contentType: auxiliaryInformation description: Requested end time (in UTC CCSDS-A) of this granule. origname: granule_end_utc fullnamepath: /ancillary_data/granule_end_utc |
| ancillary_data_end_cycle: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Ending Cycle units: 1 source: Derived valid_min: 0 valid_max: 99 contentType: auxiliaryInformation description: The ending cycle number associated with the data contained within this granule. The cycle number is the counter of the number of 91-day repeat cycles completed by the mission. origname: end_cycle fullnamepath: /ancillary_data/end_cycle |
| ancillary_data_granule_start_utc: | Array of Strings [FakeDim0 = 0..0] long_name: Start UTC Time of Granule (CCSDS-A, Requested) units: 1 source: Derived contentType: auxiliaryInformation description: Requested start time (in UTC CCSDS-A) of this granule. origname: granule_start_utc fullnamepath: /ancillary_data/granule_start_utc |
| ancillary_data_start_delta_time: | Array of 64 bit Reals [FakeDim0 = 0..0] long_name: ATLAS Start Time (Actual) standard_name: time units: seconds since 2018-01-01 source: Derived contentType: auxiliaryInformation description: Number of GPS seconds since the ATLAS SDP epoch at the first data point in the file. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed. origname: start_delta_time fullnamepath: /ancillary_data/start_delta_time |
| ancillary_data_start_geoseg: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Starting Geolocation Segment units: 1 source: Derived contentType: auxiliaryInformation description: The starting geolocation segment number associated with the data contained within this granule. ICESat granule geographic regions are further refined by geolocation segments. During the geolocation process, a geolocation segment is created approximately every 20m from the start of the orbit to the end. The geolocation segments help align the ATLAS strong a weak beams and provide a common segment length for the L2 and higher products. The geolocation segment indices differ slightly from orbit-to-orbit because of the irregular shape of the Earth. The geolocation segment indices on ATL01 and ATL02 are only approximate because beams have not been aligned at the time of their creation. origname: start_geoseg fullnamepath: /ancillary_data/start_geoseg |
| ancillary_data_start_orbit: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Starting Orbit Number units: 1 source: Derived contentType: auxiliaryInformation description: The starting orbit number associated with the data contained within this granule. The orbit number increments each time the spacecraft completes a full orbit of the Earth. origname: start_orbit fullnamepath: /ancillary_data/start_orbit |
| ancillary_data_data_start_utc: | Array of Strings [FakeDim0 = 0..0] long_name: Start UTC Time of Granule (CCSDS-A, Actual) units: 1 source: Derived contentType: auxiliaryInformation description: UTC (in CCSDS-A format) of the first data point within the granule. origname: data_start_utc fullnamepath: /ancillary_data/data_start_utc |
| ancillary_data_end_gpsweek: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Ending GPSWeek of Granule (Actual) units: weeks from 1980-01-06 source: Derived contentType: auxiliaryInformation description: GPS week number of the last data point in the granule. origname: end_gpsweek fullnamepath: /ancillary_data/end_gpsweek |
| ancillary_data_start_rgt: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Starting Reference Groundtrack units: 1 source: Derived valid_min: 1 valid_max: 1387 contentType: auxiliaryInformation description: The starting reference groundtrack (RGT) number associated with the data contained within this granule. There are 1387 reference groundtrack in the ICESat-2 repeat orbit. The reference groundtrack increments each time the spacecraft completes a full orbit of the Earth and resets to 1 each time the spacecraft completes a full cycle. origname: start_rgt fullnamepath: /ancillary_data/start_rgt |
| ancillary_data_end_gpssow: | Array of 64 bit Reals [FakeDim0 = 0..0] long_name: Ending GPS SOW of Granule (Actual) units: seconds source: Derived contentType: auxiliaryInformation description: GPS seconds-of-week of the last data point in the granule. origname: end_gpssow fullnamepath: /ancillary_data/end_gpssow |
| ancillary_data_qa_at_interval: | Array of 64 bit Reals [FakeDim0 = 0..0] long_name: QA Along-Track Interval units: seconds/cell source: control contentType: auxiliaryInformation description: Statistics time interval for along-track QA data. origname: qa_at_interval fullnamepath: /ancillary_data/qa_at_interval |
| ancillary_data_start_region: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Starting Region units: 1 source: Derived contentType: auxiliaryInformation description: The starting product-specific region number associated with the data contained within this granule. ICESat-2 data products are separated by geographic regions. The data contained within a specific region are the same for ATL01 and ATL02. ATL03 regions differ slightly because of different geolocation segment locations caused by the irregular shape of the Earth. The region indices for other products are completely independent. origname: start_region fullnamepath: /ancillary_data/start_region |
| ancillary_data_start_gpsweek: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Start GPSWeek of Granule (Actual) units: weeks from 1980-01-06 source: Derived contentType: auxiliaryInformation description: GPS week number of the first data point in the granule. origname: start_gpsweek fullnamepath: /ancillary_data/start_gpsweek |
| orbit_info_bounding_polygon_lat1: | Array of 32 bit Reals [orbit_info_bounding_polygon_dim1 = 0..27] description: Polygon extent vertex latitude units: degrees North long_name: Polygon vertex latitude source: model origname: bounding_polygon_lat1 fullnamepath: /orbit_info/bounding_polygon_lat1 coordinates: orbit_info_bounding_polygon_dim1 |
| orbit_info_bounding_polygon_lon1: | Array of 32 bit Reals [orbit_info_bounding_polygon_dim1 = 0..27] description: Polygon extent vertex longitude units: degrees East long_name: Polygon vertex longitude source: model origname: bounding_polygon_lon1 fullnamepath: /orbit_info/bounding_polygon_lon1 coordinates: orbit_info_bounding_polygon_dim1 |
| orbit_info_cycle_number: | Array of 16 bit Integers [orbit_info_crossing_time = 0..6] contentType: referenceInformation description: Tracks the number of 91-day cycles in the mission, beginning with 01. A unique orbit number can be determined by subtracting 1 from the cycle_number, multiplying by 1387 and adding the rgt value. long_name: Cycle Number source: POD/PPD units: counts valid_max: 50 valid_min: 0 origname: cycle_number fullnamepath: /orbit_info/cycle_number coordinates: orbit_info_crossing_time |
| orbit_info_lan: | Array of 64 bit Reals [orbit_info_crossing_time = 0..6] contentType: referenceInformation description: Longitude at the ascending node crossing. long_name: Ascending Node Longitude source: POD/PPD units: degrees_east valid_max: 180.00000000000000 valid_min: -180.00000000000000 origname: lan fullnamepath: /orbit_info/lan coordinates: orbit_info_crossing_time |
| orbit_info_orbit_number: | Array of 16 bit Unsigned integers [orbit_info_crossing_time = 0..6] contentType: referenceInformation description: Unique identifying number for each planned ICESat-2 orbit. long_name: Orbit Number source: Operations units: 1 valid_max: 65000 valid_min: 1 origname: orbit_number fullnamepath: /orbit_info/orbit_number coordinates: orbit_info_crossing_time |
| orbit_info_rgt: | Array of 16 bit Integers [orbit_info_crossing_time = 0..6] contentType: referenceInformation description: The reference ground track (RGT) is the track on the earth at which a specified unit vector within the observatory is pointed. Under nominal operating conditions, there will be no data collected along the RGT, as the RGT is spanned by GT2L and GT2R. During slews or off-pointing, it is possible that ground tracks may intersect the RGT. The ICESat-2 mission has 1387 RGTs. long_name: Reference Ground track source: POD/PPD units: counts valid_max: 1387 valid_min: 1 origname: rgt fullnamepath: /orbit_info/rgt coordinates: orbit_info_crossing_time |
| orbit_info_sc_orient: | Array of 16 bit Integers [orbit_info_sc_orient_time = 0..6] contentType: referenceInformation description: This parameter tracks the spacecraft orientation between forward, backward and transitional flight modes. ICESat-2 is considered to be flying forward when the weak beams are leading the strong beams; and backward when the strong beams are leading the weak beams. ICESat-2 is considered to be in transition while it is maneuvering between the two orientations. Science quality is potentially degraded while in transition mode. flag_meanings: backward forward transition flag_values: 0, 1, 2 long_name: Spacecraft Orientation source: POD/PPD units: 1 valid_max: 2 valid_min: 0 origname: sc_orient fullnamepath: /orbit_info/sc_orient coordinates: orbit_info_sc_orient_time |
| pt1_crossing_track_data_along_track_rss: | Array of 32 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] long_name: "root sum of squared differences in crossover heights" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Root sum of the squared differences between the heights of the endpoints for the current segment and the centers of the previous and next segments" origname: along_track_rss fullnamepath: /pt1/crossing_track_data/along_track_rss coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_atl06_quality_summary: | Array of 16 bit Integers [pt1_crossing_track_data_ref_pt = 0..106597] units: 1 DIMENSION_LABELS: ref_pt description: "Quality flag for the crossing data derived from ATL06. 0 indicates no problems detected, 1 indicates potential problems" source: "ATL06" long_name: "crossover quality flag" origname: atl06_quality_summary fullnamepath: /pt1/crossing_track_data/atl06_quality_summary coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_cycle_number: | Array of 16 bit Integers [pt1_crossing_track_data_ref_pt = 0..106597] DIMENSION_LABELS: ref_pt units: counts description: "Cycle number for the crossing data" source: "ATL06" long_name: "crossover cycle number" origname: cycle_number fullnamepath: /pt1/crossing_track_data/cycle_number coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_dac: | Array of 32 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] long_name: "dynamic atmosphere correction" source: "ATL06" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Crossing-track dynamic-atmosphere correction" origname: dac fullnamepath: /pt1/crossing_track_data/dac coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_delta_time: | Array of 64 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] DIMENSION_LABELS: ref_pt units: seconds since 2018-01-01 description: Mean number of GPS seconds since the ATLAS SDP epoch long_name: Elapsed GPS seconds source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 origname: delta_time fullnamepath: /pt1/crossing_track_data/delta_time coordinates: pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_h_corr: | Array of 32 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] DIMENSION_LABELS: ref_pt units: meters description: "WGS-84 height, corrected for the ATL11 surface shape" long_name: "corrected height" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_corr fullnamepath: /pt1/crossing_track_data/h_corr coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_h_corr_sigma: | Array of 32 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] description: "Error in the height estimate" long_name: "corrected height error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters origname: h_corr_sigma fullnamepath: /pt1/crossing_track_data/h_corr_sigma coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_h_corr_sigma_systematic: | Array of 32 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] description: "Error in the height estimate" long_name: "corrected height error" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters source: "derived, ATL11 algorithm" origname: h_corr_sigma_systematic fullnamepath: /pt1/crossing_track_data/h_corr_sigma_systematic coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_latitude: | Array of 64 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] long_name: "crossover latitude" source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: Degrees North description: "latitude of the crossover point" origname: latitude fullnamepath: /pt1/crossing_track_data/latitude coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_longitude: | Array of 64 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] long_name: "crossover longitude" source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: Degrees East description: "longitude of the crossover point" origname: longitude fullnamepath: /pt1/crossing_track_data/longitude coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude |
| pt1_crossing_track_data_rgt: | Array of 32 bit Integers [pt1_crossing_track_data_ref_pt = 0..106597] DIMENSION_LABELS: ref_pt units: counts description: "The RGT number for the crossing data" source: "ATL06" long_name: "crossover reference ground track" origname: rgt fullnamepath: /pt1/crossing_track_data/rgt coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_spot_crossing: | Array of 16 bit Integers [pt1_crossing_track_data_ref_pt = 0..106597] DIMENSION_LABELS: ref_pt units: counts description: "The spot number for the crossing data" long_name: "crossover spot number" source: "ATL06" origname: spot_crossing fullnamepath: /pt1/crossing_track_data/spot_crossing coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_crossing_track_data_tide_ocean: | Array of 32 bit Reals [pt1_crossing_track_data_ref_pt = 0..106597] long_name: "ocean tide" source: "ATL06" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Ocean tide estimate" origname: tide_ocean fullnamepath: /pt1/crossing_track_data/tide_ocean coordinates: pt1_crossing_track_data_delta_time pt1_crossing_track_data_latitude pt1_crossing_track_data_longitude |
| pt1_cycle_stats_atl06_summary_zero_count: | Array of 16 bit Integers [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: counts description: "Number of segments with ATL06_quality_summary==0 (0 indicates the best-quality data)" long_name: "ATL06 best quality count" DIMENSION_LABELS: ref_pt, cycle_number source: "ATL06" origname: atl06_summary_zero_count fullnamepath: /pt1/cycle_stats/atl06_summary_zero_count coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_bsnow_conf: | Array of 16 bit Integers [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: 1 description: "Maximum bsnow_conf flag from ATL06: indicates the greatest (among segments) confidence flag for presence of blowing snow for each cycle" DIMENSION_LABELS: ref_pt, cycle_number long_name: "maxmimum blowing snow confidence flag" source: "ATL06" origname: bsnow_conf fullnamepath: /pt1/cycle_stats/bsnow_conf coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_bsnow_h: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average blowing snow layer height for each cycle" long_name: "weighted average blowing snow height" source: "ATL06" _FillValue: 3.402823466e+38 origname: bsnow_h fullnamepath: /pt1/cycle_stats/bsnow_h coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_cloud_flg_asr: | Array of 16 bit Integers [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: 1 description: "Minimum apparent-surface-reflectance -based cloud flag from ATL06: Flag indicates confidence that clouds with OT > 0.2 are present in the lower 3 km of the atmosphere based on ATL09" long_name: "Minimum apparent surface reflectance flag" DIMENSION_LABELS: ref_pt, cycle_number source: "ATL06" origname: cloud_flg_asr fullnamepath: /pt1/cycle_stats/cloud_flg_asr coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_cloud_flg_atm: | Array of 16 bit Integers [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] description: "Minimum cloud flag from ATL06: Flag indicates confidence that clouds with OT > 0.2 are present in the lower 3 km of the atmosphere based on ATL09" long_name: "minimum cloud flag" source: "ATL06" DIMENSION_LABELS: ref_pt, cycle_number units: 1 origname: cloud_flg_atm fullnamepath: /pt1/cycle_stats/cloud_flg_atm coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_dac: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Weighted-average dynamic atmosphere correction for each pass" source: "ATL06" long_name: "weighted average dynamic atmosphere correction" _FillValue: 3.402823466e+38 origname: dac fullnamepath: /pt1/cycle_stats/dac coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_h_mean: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] description: "Weighted-average of surface heights, not including the correction for the reference surface" source: "ATL06" units: meters DIMENSION_LABELS: ref_pt, cycle_number long_name: "weighted average uncorrected surface heights" _FillValue: 3.402823466e+38 origname: h_mean fullnamepath: /pt1/cycle_stats/h_mean coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_h_rms_misfit: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average RMS misfit between PE heights and along-track land-ice segment fit" long_name: "weighted average RMS fit error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_rms_misfit fullnamepath: /pt1/cycle_stats/h_rms_misfit coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_min_signal_selection_source: | Array of 16 bit Integers [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: 1 source: "ATL06" DIMENSION_LABELS: ref_pt, cycle_number description: "Minimum of the ATL06 signal_selection_source value (indicates the highest-quality segment in the cycle)" long_name: "minimum signal selection source" origname: min_signal_selection_source fullnamepath: /pt1/cycle_stats/min_signal_selection_source coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_min_snr_significance: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: 1 description: "Minimum of SNR_significance (indicates the quality of the best segment in the cycle)" long_name: "minumum signal-noise ration significance" source: "ATL06" _FillValue: 3.402823466e+38 origname: min_snr_significance fullnamepath: /pt1/cycle_stats/min_snr_significance coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_r_eff: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: 1 DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average effective, uncorrected reflectance for each pass." long_name: "weighted average reflectance" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: r_eff fullnamepath: /pt1/cycle_stats/r_eff coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_seg_count: | Array of 32 bit Integers [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: counts description: "Number of segments marked as valid for each cycle. Equal to 0 for those cycles not included in the reference-surface shape fit." long_name: "number valid segments" source: "ATL06" origname: seg_count fullnamepath: /pt1/cycle_stats/seg_count coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_sigma_geo_at: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] description: "Root-mean-weighted-square-average local-coordinate x horizontal geolocation error for each cycle due to PPD and POD" long_name: "average horizontal x-coordinate geolocation error" source: "ATL06" DIMENSION_LABELS: ref_pt, cycle_number units: meters _FillValue: 3.402823466e+38 origname: sigma_geo_at fullnamepath: /pt1/cycle_stats/sigma_geo_at coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_sigma_geo_h: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] description: "Root-mean-weighted-square-average total vertical geolocation error due to PPD and POD" long_name: "average vertical geolocation error" source: "ATL06" DIMENSION_LABELS: ref_pt, cycle_number units: meters _FillValue: 3.402823466e+38 origname: sigma_geo_h fullnamepath: /pt1/cycle_stats/sigma_geo_h coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_sigma_geo_xt: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Root-mean-weighted-square-average local-coordinate y horizontal geolocation error for each cycle due to PPD and POD" source: "ATL06" long_name: "average horizontal y-coordinate geolocation error" _FillValue: 3.402823466e+38 origname: sigma_geo_xt fullnamepath: /pt1/cycle_stats/sigma_geo_xt coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_tide_ocean: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average ocean tide for each pass" long_name: "weighted average ocean tide" source: "ATL06" _FillValue: 3.402823466e+38 origname: tide_ocean fullnamepath: /pt1/cycle_stats/tide_ocean coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_x_atc: | Array of 64 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "weighted average of pair-center RGT x coordinates for each cycle " long_name: "weighted average rgt x-coordinates" source: "ATL06" _FillValue: 1.7976931348623157e+308 origname: x_atc fullnamepath: /pt1/cycle_stats/x_atc coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_cycle_stats_y_atc: | Array of 64 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "weighted mean of pair-center RGT y coordinates for each cycle" source: "ATL06" long_name: "weighted average rgt y-coordinates" _FillValue: 1.7976931348623157e+308 origname: y_atc fullnamepath: /pt1/cycle_stats/y_atc coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_delta_time: | Array of 64 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] units: seconds since 2018-01-01 description: Mean number of GPS seconds since the ATLAS SDP epoch long_name: Elapsed GPS seconds source: "ATL06" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt, cycle_number origname: delta_time fullnamepath: /pt1/delta_time coordinates: pt1_latitude pt1_longitude |
| pt1_h_corr: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "the mean corrected height" long_name: "mean corrected height" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_corr fullnamepath: /pt1/h_corr coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_h_corr_sigma: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "the formal error in the corrected height" long_name: "mean corrected height error" origname: h_corr_sigma fullnamepath: /pt1/h_corr_sigma coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_h_corr_sigma_systematic: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] description: "the magnitude of all errors that might be correlated at scales larger than a single fit center (e.g. pointing errors, GPS errors, etc)" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt, cycle_number units: meters long_name: "corrected height error" source: "derived, ATL11 algorithm" origname: h_corr_sigma_systematic fullnamepath: /pt1/h_corr_sigma_systematic coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_latitude: | Array of 64 bit Reals [pt1_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: degrees North description: "center latitude based on selected segments" long_name: "latitude" source: "ATL06 segments" _FillValue: 1.7976931348623157e+308 origname: latitude fullnamepath: /pt1/latitude coordinates: pt1_delta_time pt1_longitude |
| pt1_longitude: | Array of 64 bit Reals [pt1_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: degrees East description: "center longitude based on selected segments" long_name: "longitude" source: "ATL06 segments" _FillValue: 1.7976931348623157e+308 origname: longitude fullnamepath: /pt1/longitude coordinates: pt1_delta_time pt1_latitude |
| pt1_quality_summary: | Array of 16 bit Integers [pt1_ref_pt = 0..40582][pt1_cycle_number = 0..6] long_name: "quality summary" source: "derived, ATL11 algorithm" DIMENSION_LABELS: ref_pt, cycle_number units: 1 description: "Summary flag: zero indicates high-quality cycles: where min_signal_selection_source <=1 and min_SNR_significance < 0.02, and ATL06_summary_zero_count >0." origname: quality_summary fullnamepath: /pt1/quality_summary coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_cycle_number |
| pt1_ref_surf_at_slope: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] long_name: "along-track slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "Mean along-track component of the slope of the reference surface within 50 m of the fit center" origname: at_slope fullnamepath: /pt1/ref_surf/at_slope coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_complex_surface_flag: | Array of 16 bit Integers [pt1_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: 1 long_name: "complex surface flag" description: "0 indicates that normal fitting was attempted, 1 indicates that the signal selection algorithm rejected too many repeats, and only a linear fit was attempted" source: "derived, ATL11 algorithm" origname: complex_surface_flag fullnamepath: /pt1/ref_surf/complex_surface_flag coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_curvature: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] long_name: "curvature" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the RMS of the slope of the fit polynomial within 50 m of the fit center" origname: curvature fullnamepath: /pt1/ref_surf/curvature coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_deg_x: | Array of 16 bit Integers [pt1_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: counts description: "Maximum degree of non-zero polynomial components in x" long_name: "max-degree x polynomial" source: "derived, ATL11 algorithm" origname: deg_x fullnamepath: /pt1/ref_surf/deg_x coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_deg_y: | Array of 16 bit Integers [pt1_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: counts description: "Maximum degree of non-zero polynomial components in y" long_name: "max-degree y polynomial" source: "derived, ATL11 algorithm" origname: deg_y fullnamepath: /pt1/ref_surf/deg_y coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_dem_h: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "DEM elevation, derived from ATL06 /gtxx/atl06_segments/dem/dem_h" long_name: "DEM elevation" source: "ATL06" origname: dem_h fullnamepath: /pt1/ref_surf/dem_h coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_e_slope: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] long_name: "east-component slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the mean East-component slope for the reference surface within 50 m of the fit center" origname: e_slope fullnamepath: /pt1/ref_surf/e_slope coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_fit_quality: | Array of 16 bit Integers [pt1_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: 1 description: "Indicates quality of the fit: 0: no problem identified, 1: One or more polynomial coefficients has an error of 2 or larger, 2: One or more surface slope components is greater than 0.02, 3: both 1 and 2" long_name: "fit quality summary" source: "derived, ATL11 algorithm" origname: fit_quality fullnamepath: /pt1/ref_surf/fit_quality coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_geoid_h: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Geoid height above WGS-84 reference ellipsoid, derived from ATL06 /gtxx/atl06_segments/dem/geoid_h" long_name: "Geoid Height" source: "ATL06" origname: geoid_h fullnamepath: /pt1/ref_surf/geoid_h coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_misfit_RMS: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "RMS misfit for the surface-polynomial fit" long_name: "misfit RMS" source: "derived, ATL11 algorithm" origname: misfit_RMS fullnamepath: /pt1/ref_surf/misfit_RMS coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_misfit_chi2r: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "misfit chi square, divided by the number of degrees in the solution" long_name: "misfit chi square" source: "derived, ATL11 algorithm" origname: misfit_chi2r fullnamepath: /pt1/ref_surf/misfit_chi2r coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_n_slope: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] long_name: "north-component slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the mean North-component slope for the reference surface within 50 m of the fit center" origname: n_slope fullnamepath: /pt1/ref_surf/n_slope coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_poly_coeffs: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_ref_surf_poly_exponent_x = 0..7] units: 1 DIMENSION_LABELS: ref_pt, (poly_exponent_x, poly_exponent_y) description: "polynomial coefficients (up to degree 3), for polynomial components scaled by 100 m" long_name: "polynomial coefficients" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: poly_coeffs fullnamepath: /pt1/ref_surf/poly_coeffs coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_ref_surf_poly_exponent_x pt1_ref_surf_poly_exponent_y |
| pt1_ref_surf_poly_coeffs_sigma: | Array of 32 bit Reals [pt1_ref_pt = 0..40582][pt1_ref_surf_poly_exponent_x = 0..7] units: 1 DIMENSION_LABELS: ref_pt, (poly_exponent_x, poly_exponent_y) description: "formal errors for the polynomial coefficients" long_name: "polynomial coefficients error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: poly_coeffs_sigma fullnamepath: /pt1/ref_surf/poly_coeffs_sigma coordinates: pt1_delta_time pt1_latitude pt1_longitude pt1_ref_surf_poly_exponent_x pt1_ref_surf_poly_exponent_y |
| pt1_ref_surf_rgt_azimuth: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: degrees description: "Reference track azimuth, in degrees east of local north" long_name: "RGT azimuth" source: "ATL06" origname: rgt_azimuth fullnamepath: /pt1/ref_surf/rgt_azimuth coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_slope_change_rate_x: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 units: years^-1 DIMENSION_LABELS: ref_pt description: "rate of change of the x component of the surface slope" long_name: "x component of slope chnage rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_x fullnamepath: /pt1/ref_surf/slope_change_rate_x coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_slope_change_rate_x_sigma: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "Formal error in the rate of change of the x component of the surface slope" long_name: "error of x component slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_x_sigma fullnamepath: /pt1/ref_surf/slope_change_rate_x_sigma coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_slope_change_rate_y: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "rate of change of the y component of the surface slope" long_name: "y component of slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_y fullnamepath: /pt1/ref_surf/slope_change_rate_y coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_slope_change_rate_y_sigma: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "Formal error in the rate of change of the y component of the surface slope" long_name: "error of y component slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_y_sigma fullnamepath: /pt1/ref_surf/slope_change_rate_y_sigma coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_x_atc: | Array of 64 bit Reals [pt1_ref_pt = 0..40582] source: "ATL06" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: meters description: "Along-track coordinate of the reference point, measured along the RGT from its first equator crossing." long_name: "Along track distance" origname: x_atc fullnamepath: /pt1/ref_surf/x_atc coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_xt_slope: | Array of 32 bit Reals [pt1_ref_pt = 0..40582] long_name: "across-track slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "Mean cross-track component of the slope of the reference surface within 50 m of the fit center" origname: xt_slope fullnamepath: /pt1/ref_surf/xt_slope coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt1_ref_surf_y_atc: | Array of 64 bit Reals [pt1_ref_pt = 0..40582] _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: meters description: "Across-track coordinate of the reference point, measured along the RGT from its first equator crossing." long_name: "Across track distance" source: "ATL06" origname: y_atc fullnamepath: /pt1/ref_surf/y_atc coordinates: pt1_delta_time pt1_latitude pt1_longitude |
| pt2_crossing_track_data_along_track_rss: | Array of 32 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] long_name: "root sum of squared differences in crossover heights" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Root sum of the squared differences between the heights of the endpoints for the current segment and the centers of the previous and next segments" origname: along_track_rss fullnamepath: /pt2/crossing_track_data/along_track_rss coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_atl06_quality_summary: | Array of 16 bit Integers [pt2_crossing_track_data_ref_pt = 0..101383] units: 1 DIMENSION_LABELS: ref_pt description: "Quality flag for the crossing data derived from ATL06. 0 indicates no problems detected, 1 indicates potential problems" source: "ATL06" long_name: "crossover quality flag" origname: atl06_quality_summary fullnamepath: /pt2/crossing_track_data/atl06_quality_summary coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_cycle_number: | Array of 16 bit Integers [pt2_crossing_track_data_ref_pt = 0..101383] DIMENSION_LABELS: ref_pt units: counts description: "Cycle number for the crossing data" source: "ATL06" long_name: "crossover cycle number" origname: cycle_number fullnamepath: /pt2/crossing_track_data/cycle_number coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_dac: | Array of 32 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] long_name: "dynamic atmosphere correction" source: "ATL06" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Crossing-track dynamic-atmosphere correction" origname: dac fullnamepath: /pt2/crossing_track_data/dac coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_delta_time: | Array of 64 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] DIMENSION_LABELS: ref_pt units: seconds since 2018-01-01 description: Mean number of GPS seconds since the ATLAS SDP epoch long_name: Elapsed GPS seconds source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 origname: delta_time fullnamepath: /pt2/crossing_track_data/delta_time coordinates: pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_h_corr: | Array of 32 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] DIMENSION_LABELS: ref_pt units: meters description: "WGS-84 height, corrected for the ATL11 surface shape" long_name: "corrected height" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_corr fullnamepath: /pt2/crossing_track_data/h_corr coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_h_corr_sigma: | Array of 32 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] description: "Error in the height estimate" long_name: "corrected height error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters origname: h_corr_sigma fullnamepath: /pt2/crossing_track_data/h_corr_sigma coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_h_corr_sigma_systematic: | Array of 32 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] description: "Error in the height estimate" long_name: "corrected height error" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters source: "derived, ATL11 algorithm" origname: h_corr_sigma_systematic fullnamepath: /pt2/crossing_track_data/h_corr_sigma_systematic coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_latitude: | Array of 64 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] long_name: "crossover latitude" source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: Degrees North description: "latitude of the crossover point" origname: latitude fullnamepath: /pt2/crossing_track_data/latitude coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_longitude: | Array of 64 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] long_name: "crossover longitude" source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: Degrees East description: "longitude of the crossover point" origname: longitude fullnamepath: /pt2/crossing_track_data/longitude coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude |
| pt2_crossing_track_data_rgt: | Array of 32 bit Integers [pt2_crossing_track_data_ref_pt = 0..101383] DIMENSION_LABELS: ref_pt units: counts description: "The RGT number for the crossing data" source: "ATL06" long_name: "crossover reference ground track" origname: rgt fullnamepath: /pt2/crossing_track_data/rgt coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_spot_crossing: | Array of 16 bit Integers [pt2_crossing_track_data_ref_pt = 0..101383] DIMENSION_LABELS: ref_pt units: counts description: "The spot number for the crossing data" long_name: "crossover spot number" source: "ATL06" origname: spot_crossing fullnamepath: /pt2/crossing_track_data/spot_crossing coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_crossing_track_data_tide_ocean: | Array of 32 bit Reals [pt2_crossing_track_data_ref_pt = 0..101383] long_name: "ocean tide" source: "ATL06" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Ocean tide estimate" origname: tide_ocean fullnamepath: /pt2/crossing_track_data/tide_ocean coordinates: pt2_crossing_track_data_delta_time pt2_crossing_track_data_latitude pt2_crossing_track_data_longitude |
| pt2_cycle_stats_atl06_summary_zero_count: | Array of 16 bit Integers [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: counts description: "Number of segments with ATL06_quality_summary==0 (0 indicates the best-quality data)" long_name: "ATL06 best quality count" DIMENSION_LABELS: ref_pt, cycle_number source: "ATL06" origname: atl06_summary_zero_count fullnamepath: /pt2/cycle_stats/atl06_summary_zero_count coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_bsnow_conf: | Array of 16 bit Integers [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: 1 description: "Maximum bsnow_conf flag from ATL06: indicates the greatest (among segments) confidence flag for presence of blowing snow for each cycle" DIMENSION_LABELS: ref_pt, cycle_number long_name: "maxmimum blowing snow confidence flag" source: "ATL06" origname: bsnow_conf fullnamepath: /pt2/cycle_stats/bsnow_conf coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_bsnow_h: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average blowing snow layer height for each cycle" long_name: "weighted average blowing snow height" source: "ATL06" _FillValue: 3.402823466e+38 origname: bsnow_h fullnamepath: /pt2/cycle_stats/bsnow_h coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_cloud_flg_asr: | Array of 16 bit Integers [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: 1 description: "Minimum apparent-surface-reflectance -based cloud flag from ATL06: Flag indicates confidence that clouds with OT > 0.2 are present in the lower 3 km of the atmosphere based on ATL09" long_name: "Minimum apparent surface reflectance flag" DIMENSION_LABELS: ref_pt, cycle_number source: "ATL06" origname: cloud_flg_asr fullnamepath: /pt2/cycle_stats/cloud_flg_asr coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_cloud_flg_atm: | Array of 16 bit Integers [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] description: "Minimum cloud flag from ATL06: Flag indicates confidence that clouds with OT > 0.2 are present in the lower 3 km of the atmosphere based on ATL09" long_name: "minimum cloud flag" source: "ATL06" DIMENSION_LABELS: ref_pt, cycle_number units: 1 origname: cloud_flg_atm fullnamepath: /pt2/cycle_stats/cloud_flg_atm coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_dac: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Weighted-average dynamic atmosphere correction for each pass" source: "ATL06" long_name: "weighted average dynamic atmosphere correction" _FillValue: 3.402823466e+38 origname: dac fullnamepath: /pt2/cycle_stats/dac coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_h_mean: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average of surface heights, not including the correction for the reference surface" source: "ATL06" long_name: "weighted average uncorrected surface heights" _FillValue: 3.402823466e+38 origname: h_mean fullnamepath: /pt2/cycle_stats/h_mean coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_h_rms_misfit: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average RMS misfit between PE heights and along-track land-ice segment fit" long_name: "weighted average RMS fit error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_rms_misfit fullnamepath: /pt2/cycle_stats/h_rms_misfit coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_min_signal_selection_source: | Array of 16 bit Integers [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: 1 source: "ATL06" DIMENSION_LABELS: ref_pt, cycle_number description: "Minimum of the ATL06 signal_selection_source value (indicates the highest-quality segment in the cycle)" long_name: "minimum signal selection source" origname: min_signal_selection_source fullnamepath: /pt2/cycle_stats/min_signal_selection_source coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_min_snr_significance: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: 1 description: "Minimum of SNR_significance (indicates the quality of the best segment in the cycle)" long_name: "minumum signal-noise ration significance" source: "ATL06" _FillValue: 3.402823466e+38 origname: min_snr_significance fullnamepath: /pt2/cycle_stats/min_snr_significance coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_r_eff: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: 1 DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average effective, uncorrected reflectance for each pass." long_name: "weighted average reflectance" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: r_eff fullnamepath: /pt2/cycle_stats/r_eff coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_seg_count: | Array of 32 bit Integers [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: counts description: "Number of segments marked as valid for each cycle. Equal to 0 for those cycles not included in the reference-surface shape fit." long_name: "number valid segments" source: "ATL06" origname: seg_count fullnamepath: /pt2/cycle_stats/seg_count coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_sigma_geo_at: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Root-mean-weighted-square-average local-coordinate x horizontal geolocation error for each cycle due to PPD and POD" long_name: "average horizontal x-coordinate geolocation error" source: "ATL06" _FillValue: 3.402823466e+38 origname: sigma_geo_at fullnamepath: /pt2/cycle_stats/sigma_geo_at coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_sigma_geo_h: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Root-mean-weighted-square-average total vertical geolocation error due to PPD and POD" long_name: "average vertical geolocation error" source: "ATL06" _FillValue: 3.402823466e+38 origname: sigma_geo_h fullnamepath: /pt2/cycle_stats/sigma_geo_h coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_sigma_geo_xt: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Root-mean-weighted-square-average local-coordinate y horizontal geolocation error for each cycle due to PPD and POD" long_name: "average horizontal y-coordinate geolocation error" source: "ATL06" _FillValue: 3.402823466e+38 origname: sigma_geo_xt fullnamepath: /pt2/cycle_stats/sigma_geo_xt coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_tide_ocean: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average ocean tide for each pass" long_name: "weighted average ocean tide" source: "ATL06" _FillValue: 3.402823466e+38 origname: tide_ocean fullnamepath: /pt2/cycle_stats/tide_ocean coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_x_atc: | Array of 64 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "weighted average of pair-center RGT x coordinates for each cycle " long_name: "weighted average rgt x-coordinates" source: "ATL06" _FillValue: 1.7976931348623157e+308 origname: x_atc fullnamepath: /pt2/cycle_stats/x_atc coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_cycle_stats_y_atc: | Array of 64 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "weighted mean of pair-center RGT y coordinates for each cycle" source: "ATL06" long_name: "weighted average rgt y-coordinates" _FillValue: 1.7976931348623157e+308 origname: y_atc fullnamepath: /pt2/cycle_stats/y_atc coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_delta_time: | Array of 64 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] units: seconds since 2018-01-01 description: Mean number of GPS seconds since the ATLAS SDP epoch long_name: Elapsed GPS seconds source: "ATL06" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt, cycle_number origname: delta_time fullnamepath: /pt2/delta_time coordinates: pt2_latitude pt2_longitude |
| pt2_h_corr: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "the mean corrected height" long_name: "mean corrected height" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_corr fullnamepath: /pt2/h_corr coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_h_corr_sigma: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "the formal error in the corrected height" long_name: "mean corrected height error" origname: h_corr_sigma fullnamepath: /pt2/h_corr_sigma coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_h_corr_sigma_systematic: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] description: "the magnitude of all errors that might be correlated at scales larger than a single fit center (e.g. pointing errors, GPS errors, etc)" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt, cycle_number units: meters long_name: "corrected height error" source: "derived, ATL11 algorithm" origname: h_corr_sigma_systematic fullnamepath: /pt2/h_corr_sigma_systematic coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_latitude: | Array of 64 bit Reals [pt2_ref_pt = 0..40581] DIMENSION_LABELS: ref_pt units: degrees North description: "center latitude based on selected segments" long_name: "latitude" source: "ATL06 segments" _FillValue: 1.7976931348623157e+308 origname: latitude fullnamepath: /pt2/latitude coordinates: pt2_delta_time pt2_longitude |
| pt2_longitude: | Array of 64 bit Reals [pt2_ref_pt = 0..40581] DIMENSION_LABELS: ref_pt units: degrees East description: "center longitude based on selected segments" long_name: "longitude" source: "ATL06 segments" _FillValue: 1.7976931348623157e+308 origname: longitude fullnamepath: /pt2/longitude coordinates: pt2_delta_time pt2_latitude |
| pt2_quality_summary: | Array of 16 bit Integers [pt2_ref_pt = 0..40581][pt2_cycle_number = 0..6] long_name: "quality summary" source: "derived, ATL11 algorithm" DIMENSION_LABELS: ref_pt, cycle_number units: 1 description: "Summary flag: zero indicates high-quality cycles: where min_signal_selection_source <=1 and min_SNR_significance < 0.02, and ATL06_summary_zero_count >0." origname: quality_summary fullnamepath: /pt2/quality_summary coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_cycle_number |
| pt2_ref_surf_at_slope: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] long_name: "along-track slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "Mean along-track component of the slope of the reference surface within 50 m of the fit center" origname: at_slope fullnamepath: /pt2/ref_surf/at_slope coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_complex_surface_flag: | Array of 16 bit Integers [pt2_ref_pt = 0..40581] DIMENSION_LABELS: ref_pt units: 1 long_name: "complex surface flag" description: "0 indicates that normal fitting was attempted, 1 indicates that the signal selection algorithm rejected too many repeats, and only a linear fit was attempted" source: "derived, ATL11 algorithm" origname: complex_surface_flag fullnamepath: /pt2/ref_surf/complex_surface_flag coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_curvature: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] long_name: "curvature" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the RMS of the slope of the fit polynomial within 50 m of the fit center" origname: curvature fullnamepath: /pt2/ref_surf/curvature coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_deg_x: | Array of 16 bit Integers [pt2_ref_pt = 0..40581] DIMENSION_LABELS: ref_pt units: counts description: "Maximum degree of non-zero polynomial components in x" long_name: "max-degree x polynomial" source: "derived, ATL11 algorithm" origname: deg_x fullnamepath: /pt2/ref_surf/deg_x coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_deg_y: | Array of 16 bit Integers [pt2_ref_pt = 0..40581] DIMENSION_LABELS: ref_pt units: counts description: "Maximum degree of non-zero polynomial components in y" long_name: "max-degree y polynomial" source: "derived, ATL11 algorithm" origname: deg_y fullnamepath: /pt2/ref_surf/deg_y coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_dem_h: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "DEM elevation, derived from ATL06 /gtxx/atl06_segments/dem/dem_h" long_name: "DEM elevation" source: "ATL06" origname: dem_h fullnamepath: /pt2/ref_surf/dem_h coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_e_slope: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] long_name: "east-component slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the mean East-component slope for the reference surface within 50 m of the fit center" origname: e_slope fullnamepath: /pt2/ref_surf/e_slope coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_fit_quality: | Array of 16 bit Integers [pt2_ref_pt = 0..40581] DIMENSION_LABELS: ref_pt units: 1 description: "Indicates quality of the fit: 0: no problem identified, 1: One or more polynomial coefficients has an error of 2 or larger, 2: One or more surface slope components is greater than 0.02, 3: both 1 and 2" long_name: "fit quality summary" source: "derived, ATL11 algorithm" origname: fit_quality fullnamepath: /pt2/ref_surf/fit_quality coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_geoid_h: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Geoid height above WGS-84 reference ellipsoid, derived from ATL06 /gtxx/atl06_segments/dem/geoid_h" long_name: "Geoid Height" source: "ATL06" origname: geoid_h fullnamepath: /pt2/ref_surf/geoid_h coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_misfit_RMS: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "RMS misfit for the surface-polynomial fit" long_name: "misfit RMS" source: "derived, ATL11 algorithm" origname: misfit_RMS fullnamepath: /pt2/ref_surf/misfit_RMS coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_misfit_chi2r: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "misfit chi square, divided by the number of degrees in the solution" long_name: "misfit chi square" source: "derived, ATL11 algorithm" origname: misfit_chi2r fullnamepath: /pt2/ref_surf/misfit_chi2r coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_n_slope: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] long_name: "north-component slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the mean North-component slope for the reference surface within 50 m of the fit center" origname: n_slope fullnamepath: /pt2/ref_surf/n_slope coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_poly_coeffs: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_ref_surf_poly_exponent_x = 0..7] units: 1 DIMENSION_LABELS: ref_pt, (poly_exponent_x, poly_exponent_y) description: "polynomial coefficients (up to degree 3), for polynomial components scaled by 100 m" long_name: "polynomial coefficients" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: poly_coeffs fullnamepath: /pt2/ref_surf/poly_coeffs coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_ref_surf_poly_exponent_x pt2_ref_surf_poly_exponent_y |
| pt2_ref_surf_poly_coeffs_sigma: | Array of 32 bit Reals [pt2_ref_pt = 0..40581][pt2_ref_surf_poly_exponent_x = 0..7] units: 1 DIMENSION_LABELS: ref_pt, (poly_exponent_x, poly_exponent_y) description: "formal errors for the polynomial coefficients" long_name: "polynomial coefficients error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: poly_coeffs_sigma fullnamepath: /pt2/ref_surf/poly_coeffs_sigma coordinates: pt2_delta_time pt2_latitude pt2_longitude pt2_ref_surf_poly_exponent_x pt2_ref_surf_poly_exponent_y |
| pt2_ref_surf_rgt_azimuth: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: degrees description: "Reference track azimuth, in degrees east of local north" long_name: "RGT azimuth" source: "ATL06" origname: rgt_azimuth fullnamepath: /pt2/ref_surf/rgt_azimuth coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_slope_change_rate_x: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 units: years^-1 DIMENSION_LABELS: ref_pt description: "rate of change of the x component of the surface slope" long_name: "x component of slope chnage rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_x fullnamepath: /pt2/ref_surf/slope_change_rate_x coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_slope_change_rate_x_sigma: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "Formal error in the rate of change of the x component of the surface slope" long_name: "error of x component slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_x_sigma fullnamepath: /pt2/ref_surf/slope_change_rate_x_sigma coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_slope_change_rate_y: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "rate of change of the y component of the surface slope" long_name: "y component of slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_y fullnamepath: /pt2/ref_surf/slope_change_rate_y coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_slope_change_rate_y_sigma: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "Formal error in the rate of change of the y component of the surface slope" long_name: "error of y component slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_y_sigma fullnamepath: /pt2/ref_surf/slope_change_rate_y_sigma coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_x_atc: | Array of 64 bit Reals [pt2_ref_pt = 0..40581] source: "ATL06" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: meters description: "Along-track coordinate of the reference point, measured along the RGT from its first equator crossing." long_name: "Along track distance" origname: x_atc fullnamepath: /pt2/ref_surf/x_atc coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_xt_slope: | Array of 32 bit Reals [pt2_ref_pt = 0..40581] long_name: "across-track slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "Mean cross-track component of the slope of the reference surface within 50 m of the fit center" origname: xt_slope fullnamepath: /pt2/ref_surf/xt_slope coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt2_ref_surf_y_atc: | Array of 64 bit Reals [pt2_ref_pt = 0..40581] _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: meters description: "Across-track coordinate of the reference point, measured along the RGT from its first equator crossing." long_name: "Across track distance" source: "ATL06" origname: y_atc fullnamepath: /pt2/ref_surf/y_atc coordinates: pt2_delta_time pt2_latitude pt2_longitude |
| pt3_crossing_track_data_along_track_rss: | Array of 32 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] long_name: "root sum of squared differences in crossover heights" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Root sum of the squared differences between the heights of the endpoints for the current segment and the centers of the previous and next segments" origname: along_track_rss fullnamepath: /pt3/crossing_track_data/along_track_rss coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_atl06_quality_summary: | Array of 16 bit Integers [pt3_crossing_track_data_ref_pt = 0..99554] units: 1 DIMENSION_LABELS: ref_pt description: "Quality flag for the crossing data derived from ATL06. 0 indicates no problems detected, 1 indicates potential problems" source: "ATL06" long_name: "crossover quality flag" origname: atl06_quality_summary fullnamepath: /pt3/crossing_track_data/atl06_quality_summary coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_cycle_number: | Array of 16 bit Integers [pt3_crossing_track_data_ref_pt = 0..99554] DIMENSION_LABELS: ref_pt units: counts description: "Cycle number for the crossing data" source: "ATL06" long_name: "crossover cycle number" origname: cycle_number fullnamepath: /pt3/crossing_track_data/cycle_number coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_dac: | Array of 32 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] long_name: "dynamic atmosphere correction" source: "ATL06" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Crossing-track dynamic-atmosphere correction" origname: dac fullnamepath: /pt3/crossing_track_data/dac coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_delta_time: | Array of 64 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] DIMENSION_LABELS: ref_pt units: seconds since 2018-01-01 description: Mean number of GPS seconds since the ATLAS SDP epoch long_name: Elapsed GPS seconds source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 origname: delta_time fullnamepath: /pt3/crossing_track_data/delta_time coordinates: pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_h_corr: | Array of 32 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] DIMENSION_LABELS: ref_pt units: meters description: "WGS-84 height, corrected for the ATL11 surface shape" long_name: "corrected height" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_corr fullnamepath: /pt3/crossing_track_data/h_corr coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_h_corr_sigma: | Array of 32 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] description: "Error in the height estimate" long_name: "corrected height error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters origname: h_corr_sigma fullnamepath: /pt3/crossing_track_data/h_corr_sigma coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_h_corr_sigma_systematic: | Array of 32 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] description: "Error in the height estimate" long_name: "corrected height error" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters source: "derived, ATL11 algorithm" origname: h_corr_sigma_systematic fullnamepath: /pt3/crossing_track_data/h_corr_sigma_systematic coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_latitude: | Array of 64 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] long_name: "crossover latitude" source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: Degrees North description: "latitude of the crossover point" origname: latitude fullnamepath: /pt3/crossing_track_data/latitude coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_longitude: | Array of 64 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] long_name: "crossover longitude" source: "derived, ATL11 algorithm" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: Degrees East description: "longitude of the crossover point" origname: longitude fullnamepath: /pt3/crossing_track_data/longitude coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude |
| pt3_crossing_track_data_rgt: | Array of 32 bit Integers [pt3_crossing_track_data_ref_pt = 0..99554] DIMENSION_LABELS: ref_pt units: counts description: "The RGT number for the crossing data" source: "ATL06" long_name: "crossover reference ground track" origname: rgt fullnamepath: /pt3/crossing_track_data/rgt coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_spot_crossing: | Array of 16 bit Integers [pt3_crossing_track_data_ref_pt = 0..99554] DIMENSION_LABELS: ref_pt units: counts description: "The spot number for the crossing data" long_name: "crossover spot number" source: "ATL06" origname: spot_crossing fullnamepath: /pt3/crossing_track_data/spot_crossing coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_crossing_track_data_tide_ocean: | Array of 32 bit Reals [pt3_crossing_track_data_ref_pt = 0..99554] long_name: "ocean tide" source: "ATL06" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Ocean tide estimate" origname: tide_ocean fullnamepath: /pt3/crossing_track_data/tide_ocean coordinates: pt3_crossing_track_data_delta_time pt3_crossing_track_data_latitude pt3_crossing_track_data_longitude |
| pt3_cycle_stats_atl06_summary_zero_count: | Array of 16 bit Integers [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: counts description: "Number of segments with ATL06_quality_summary==0 (0 indicates the best-quality data)" long_name: "ATL06 best quality count" DIMENSION_LABELS: ref_pt, cycle_number source: "ATL06" origname: atl06_summary_zero_count fullnamepath: /pt3/cycle_stats/atl06_summary_zero_count coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_bsnow_conf: | Array of 16 bit Integers [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: 1 description: "Maximum bsnow_conf flag from ATL06: indicates the greatest (among segments) confidence flag for presence of blowing snow for each cycle" DIMENSION_LABELS: ref_pt, cycle_number long_name: "maxmimum blowing snow confidence flag" source: "ATL06" origname: bsnow_conf fullnamepath: /pt3/cycle_stats/bsnow_conf coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_bsnow_h: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average blowing snow layer height for each cycle" long_name: "weighted average blowing snow height" source: "ATL06" _FillValue: 3.402823466e+38 origname: bsnow_h fullnamepath: /pt3/cycle_stats/bsnow_h coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_cloud_flg_asr: | Array of 16 bit Integers [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: 1 description: "Minimum apparent-surface-reflectance -based cloud flag from ATL06: Flag indicates confidence that clouds with OT > 0.2 are present in the lower 3 km of the atmosphere based on ATL09" long_name: "Minimum apparent surface reflectance flag" DIMENSION_LABELS: ref_pt, cycle_number source: "ATL06" origname: cloud_flg_asr fullnamepath: /pt3/cycle_stats/cloud_flg_asr coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_cloud_flg_atm: | Array of 16 bit Integers [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] description: "Minimum cloud flag from ATL06: Flag indicates confidence that clouds with OT > 0.2 are present in the lower 3 km of the atmosphere based on ATL09" long_name: "minimum cloud flag" source: "ATL06" DIMENSION_LABELS: ref_pt, cycle_number units: 1 origname: cloud_flg_atm fullnamepath: /pt3/cycle_stats/cloud_flg_atm coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_dac: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Weighted-average dynamic atmosphere correction for each pass" source: "ATL06" long_name: "weighted average dynamic atmosphere correction" _FillValue: 3.402823466e+38 origname: dac fullnamepath: /pt3/cycle_stats/dac coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_h_mean: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average of surface heights, not including the correction for the reference surface" source: "ATL06" long_name: "weighted average uncorrected surface heights" _FillValue: 3.402823466e+38 origname: h_mean fullnamepath: /pt3/cycle_stats/h_mean coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_h_rms_misfit: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average RMS misfit between PE heights and along-track land-ice segment fit" long_name: "weighted average RMS fit error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_rms_misfit fullnamepath: /pt3/cycle_stats/h_rms_misfit coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_min_signal_selection_source: | Array of 16 bit Integers [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: 1 source: "ATL06" DIMENSION_LABELS: ref_pt, cycle_number description: "Minimum of the ATL06 signal_selection_source value (indicates the highest-quality segment in the cycle)" long_name: "minimum signal selection source" origname: min_signal_selection_source fullnamepath: /pt3/cycle_stats/min_signal_selection_source coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_min_snr_significance: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: 1 description: "Minimum of SNR_significance (indicates the quality of the best segment in the cycle)" long_name: "minumum signal-noise ration significance" source: "ATL06" _FillValue: 3.402823466e+38 origname: min_snr_significance fullnamepath: /pt3/cycle_stats/min_snr_significance coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_r_eff: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: 1 DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average effective, uncorrected reflectance for each pass." long_name: "weighted average reflectance" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: r_eff fullnamepath: /pt3/cycle_stats/r_eff coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_seg_count: | Array of 32 bit Integers [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: counts description: "Number of segments marked as valid for each cycle. Equal to 0 for those cycles not included in the reference-surface shape fit." long_name: "number valid segments" source: "ATL06" origname: seg_count fullnamepath: /pt3/cycle_stats/seg_count coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_sigma_geo_at: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Root-mean-weighted-square-average local-coordinate x horizontal geolocation error for each cycle due to PPD and POD" long_name: "average horizontal x-coordinate geolocation error" source: "ATL06" _FillValue: 3.402823466e+38 origname: sigma_geo_at fullnamepath: /pt3/cycle_stats/sigma_geo_at coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_sigma_geo_h: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Root-mean-weighted-square-average total vertical geolocation error due to PPD and POD" long_name: "average vertical geolocation error" source: "ATL06" _FillValue: 3.402823466e+38 origname: sigma_geo_h fullnamepath: /pt3/cycle_stats/sigma_geo_h coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_sigma_geo_xt: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "Root-mean-weighted-square-average local-coordinate y horizontal geolocation error for each cycle due to PPD and POD" long_name: "average horizontal y-coordinate geolocation error" source: "ATL06" _FillValue: 3.402823466e+38 origname: sigma_geo_xt fullnamepath: /pt3/cycle_stats/sigma_geo_xt coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_tide_ocean: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: meters DIMENSION_LABELS: ref_pt, cycle_number description: "Weighted-average ocean tide for each pass" long_name: "weighted average ocean tide" source: "ATL06" _FillValue: 3.402823466e+38 origname: tide_ocean fullnamepath: /pt3/cycle_stats/tide_ocean coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_x_atc: | Array of 64 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "weighted average of pair-center RGT x coordinates for each cycle " long_name: "weighted average rgt x-coordinates" source: "ATL06" _FillValue: 1.7976931348623157e+308 origname: x_atc fullnamepath: /pt3/cycle_stats/x_atc coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_cycle_stats_y_atc: | Array of 64 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "weighted mean of pair-center RGT y coordinates for each cycle" source: "ATL06" long_name: "weighted average rgt y-coordinates" _FillValue: 1.7976931348623157e+308 origname: y_atc fullnamepath: /pt3/cycle_stats/y_atc coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_delta_time: | Array of 64 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] units: seconds since 2018-01-01 description: Mean number of GPS seconds since the ATLAS SDP epoch long_name: Elapsed GPS seconds source: "ATL06" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt, cycle_number origname: delta_time fullnamepath: /pt3/delta_time coordinates: pt3_latitude pt3_longitude |
| pt3_h_corr: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "the mean corrected height" long_name: "mean corrected height" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: h_corr fullnamepath: /pt3/h_corr coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_h_corr_sigma: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt, cycle_number units: meters description: "the formal error in the corrected height" long_name: "mean corrected height error" origname: h_corr_sigma fullnamepath: /pt3/h_corr_sigma coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_h_corr_sigma_systematic: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] description: "the magnitude of all errors that might be correlated at scales larger than a single fit center (e.g. pointing errors, GPS errors, etc)" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt, cycle_number units: meters long_name: "corrected height error" source: "derived, ATL11 algorithm" origname: h_corr_sigma_systematic fullnamepath: /pt3/h_corr_sigma_systematic coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_latitude: | Array of 64 bit Reals [pt3_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: degrees North description: "center latitude based on selected segments" long_name: "latitude" source: "ATL06 segments" _FillValue: 1.7976931348623157e+308 origname: latitude fullnamepath: /pt3/latitude coordinates: pt3_delta_time pt3_longitude |
| pt3_longitude: | Array of 64 bit Reals [pt3_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: degrees East description: "center longitude based on selected segments" long_name: "longitude" source: "ATL06 segments" _FillValue: 1.7976931348623157e+308 origname: longitude fullnamepath: /pt3/longitude coordinates: pt3_delta_time pt3_latitude |
| pt3_quality_summary: | Array of 16 bit Integers [pt3_ref_pt = 0..40582][pt3_cycle_number = 0..6] long_name: "quality summary" source: "derived, ATL11 algorithm" DIMENSION_LABELS: ref_pt, cycle_number units: 1 description: "Summary flag: zero indicates high-quality cycles: where min_signal_selection_source <=1 and min_SNR_significance < 0.02, and ATL06_summary_zero_count >0." origname: quality_summary fullnamepath: /pt3/quality_summary coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_cycle_number |
| pt3_ref_surf_at_slope: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] long_name: "along-track slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "Mean along-track component of the slope of the reference surface within 50 m of the fit center" origname: at_slope fullnamepath: /pt3/ref_surf/at_slope coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_complex_surface_flag: | Array of 16 bit Integers [pt3_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: 1 long_name: "complex surface flag" description: "0 indicates that normal fitting was attempted, 1 indicates that the signal selection algorithm rejected too many repeats, and only a linear fit was attempted" source: "derived, ATL11 algorithm" origname: complex_surface_flag fullnamepath: /pt3/ref_surf/complex_surface_flag coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_curvature: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] long_name: "curvature" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the RMS of the slope of the fit polynomial within 50 m of the fit center" origname: curvature fullnamepath: /pt3/ref_surf/curvature coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_deg_x: | Array of 16 bit Integers [pt3_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: counts description: "Maximum degree of non-zero polynomial components in x" long_name: "max-degree x polynomial" source: "derived, ATL11 algorithm" origname: deg_x fullnamepath: /pt3/ref_surf/deg_x coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_deg_y: | Array of 16 bit Integers [pt3_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: counts description: "Maximum degree of non-zero polynomial components in y" long_name: "max-degree y polynomial" source: "derived, ATL11 algorithm" origname: deg_y fullnamepath: /pt3/ref_surf/deg_y coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_dem_h: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "DEM elevation, derived from ATL06 /gtxx/atl06_segments/dem/dem_h" long_name: "DEM elevation" source: "ATL06" origname: dem_h fullnamepath: /pt3/ref_surf/dem_h coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_e_slope: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] long_name: "east-component slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the mean East-component slope for the reference surface within 50 m of the fit center" origname: e_slope fullnamepath: /pt3/ref_surf/e_slope coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_fit_quality: | Array of 16 bit Integers [pt3_ref_pt = 0..40582] DIMENSION_LABELS: ref_pt units: 1 description: "Indicates quality of the fit: 0: no problem identified, 1: One or more polynomial coefficients has an error of 2 or larger, 2: One or more surface slope components is greater than 0.02, 3: both 1 and 2" long_name: "fit quality summary" source: "derived, ATL11 algorithm" origname: fit_quality fullnamepath: /pt3/ref_surf/fit_quality coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_geoid_h: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "Geoid height above WGS-84 reference ellipsoid, derived from ATL06 /gtxx/atl06_segments/dem/geoid_h" long_name: "Geoid Height" source: "ATL06" origname: geoid_h fullnamepath: /pt3/ref_surf/geoid_h coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_misfit_RMS: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "RMS misfit for the surface-polynomial fit" long_name: "misfit RMS" source: "derived, ATL11 algorithm" origname: misfit_RMS fullnamepath: /pt3/ref_surf/misfit_RMS coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_misfit_chi2r: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: meters description: "misfit chi square, divided by the number of degrees in the solution" long_name: "misfit chi square" source: "derived, ATL11 algorithm" origname: misfit_chi2r fullnamepath: /pt3/ref_surf/misfit_chi2r coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_n_slope: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] long_name: "north-component slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "the mean North-component slope for the reference surface within 50 m of the fit center" origname: n_slope fullnamepath: /pt3/ref_surf/n_slope coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_poly_coeffs: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_ref_surf_poly_exponent_x = 0..7] units: 1 DIMENSION_LABELS: ref_pt, (poly_exponent_x, poly_exponent_y) description: "polynomial coefficients (up to degree 3), for polynomial components scaled by 100 m" long_name: "polynomial coefficients" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: poly_coeffs fullnamepath: /pt3/ref_surf/poly_coeffs coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_ref_surf_poly_exponent_x pt3_ref_surf_poly_exponent_y |
| pt3_ref_surf_poly_coeffs_sigma: | Array of 32 bit Reals [pt3_ref_pt = 0..40582][pt3_ref_surf_poly_exponent_x = 0..7] units: 1 DIMENSION_LABELS: ref_pt, (poly_exponent_x, poly_exponent_y) description: "formal errors for the polynomial coefficients" long_name: "polynomial coefficients error" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 origname: poly_coeffs_sigma fullnamepath: /pt3/ref_surf/poly_coeffs_sigma coordinates: pt3_delta_time pt3_latitude pt3_longitude pt3_ref_surf_poly_exponent_x pt3_ref_surf_poly_exponent_y |
| pt3_ref_surf_rgt_azimuth: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: degrees description: "Reference track azimuth, in degrees east of local north" long_name: "RGT azimuth" source: "ATL06" origname: rgt_azimuth fullnamepath: /pt3/ref_surf/rgt_azimuth coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_slope_change_rate_x: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 units: years^-1 DIMENSION_LABELS: ref_pt description: "rate of change of the x component of the surface slope" long_name: "x component of slope chnage rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_x fullnamepath: /pt3/ref_surf/slope_change_rate_x coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_slope_change_rate_x_sigma: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "Formal error in the rate of change of the x component of the surface slope" long_name: "error of x component slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_x_sigma fullnamepath: /pt3/ref_surf/slope_change_rate_x_sigma coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_slope_change_rate_y: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "rate of change of the y component of the surface slope" long_name: "y component of slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_y fullnamepath: /pt3/ref_surf/slope_change_rate_y coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_slope_change_rate_y_sigma: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: years^-1 description: "Formal error in the rate of change of the y component of the surface slope" long_name: "error of y component slope change rate" source: "derived, ATL11 algorithm" origname: slope_change_rate_y_sigma fullnamepath: /pt3/ref_surf/slope_change_rate_y_sigma coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_x_atc: | Array of 64 bit Reals [pt3_ref_pt = 0..40582] source: "ATL06" _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: meters description: "Along-track coordinate of the reference point, measured along the RGT from its first equator crossing." long_name: "Along track distance" origname: x_atc fullnamepath: /pt3/ref_surf/x_atc coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_xt_slope: | Array of 32 bit Reals [pt3_ref_pt = 0..40582] long_name: "across-track slope" source: "derived, ATL11 algorithm" _FillValue: 3.402823466e+38 DIMENSION_LABELS: ref_pt units: 1 description: "Mean cross-track component of the slope of the reference surface within 50 m of the fit center" origname: xt_slope fullnamepath: /pt3/ref_surf/xt_slope coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| pt3_ref_surf_y_atc: | Array of 64 bit Reals [pt3_ref_pt = 0..40582] _FillValue: 1.7976931348623157e+308 DIMENSION_LABELS: ref_pt units: meters description: "Across-track coordinate of the reference point, measured along the RGT from its first equator crossing." long_name: "Across track distance" source: "ATL06" origname: y_atc fullnamepath: /pt3/ref_surf/y_atc coordinates: pt3_delta_time pt3_latitude pt3_longitude |
| quality_assessment_qa_granule_fail_reason: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Granule Failure Reason units: 1 source: Operations valid_min: 0 valid_max: 5 contentType: qualityInformation description: Flag indicating granule failure reason. 0=no failure; 1=processing error; 2=Insufficient output data was generated; 3=TBD Failure; 4=TBD_Failure; 5=other failure. flag_meanings: no_failure PROCESS_ERROR INSUFFICIENT_OUTPUT failure_3 failure_4 OTHER_FAILURE flag_values: 0, 1, 2, 3, 4, 5 origname: qa_granule_fail_reason fullnamepath: /quality_assessment/qa_granule_fail_reason |
| quality_assessment_qa_granule_pass_fail: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Granule Pass Flag units: 1 source: Operations valid_min: 0 valid_max: 1 contentType: qualityInformation description: Flag indicating granule quality. 0=granule passes automatic QA. 1=granule fails automatic QA. flag_meanings: PASS FAIL flag_values: 0, 1 origname: qa_granule_pass_fail fullnamepath: /quality_assessment/qa_granule_pass_fail |
| orbit_info_bounding_polygon_dim1: | Array of 32 bit Integers [orbit_info_bounding_polygon_dim1 = 0..27] description: Polygon extent vertex count units: 1 long_name: Polygon vertex count source: model origname: bounding_polygon_dim1 fullnamepath: /orbit_info/bounding_polygon_dim1 |
| orbit_info_crossing_time: | Array of 64 bit Reals [orbit_info_crossing_time = 0..6] contentType: referenceInformation description: The time, in seconds since the ATLAS SDP GPS Epoch, at which the ascending node crosses the equator. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed. long_name: Ascending Node Crossing Time source: POD/PPD standard_name: time units: seconds since 2018-01-01 origname: crossing_time fullnamepath: /orbit_info/crossing_time |
| orbit_info_sc_orient_time: | Array of 64 bit Reals [orbit_info_sc_orient_time = 0..6] contentType: referenceInformation description: The time of the last spacecraft orientation change between forward, backward and transitional flight modes, expressed in seconds since the ATLAS SDP GPS Epoch. ICESat-2 is considered to be flying forward when the weak beams are leading the strong beams; and backward when the strong beams are leading the weak beams. ICESat-2 is considered to be in transition while it is maneuvering between the two orientations. Science quality is potentially degraded while in transition mode. The ATLAS Standard Data Products (SDP) epoch offset is defined within /ancillary_data/atlas_sdp_gps_epoch as the number of GPS seconds between the GPS epoch (1980-01-06T00:00:00.000000Z UTC) and the ATLAS SDP epoch. By adding the offset contained within atlas_sdp_gps_epoch to delta time parameters, the time in gps_seconds relative to the GPS epoch can be computed. long_name: Time of Last Spacecraft Orientation Change source: POD/PPD standard_name: time units: seconds since 2018-01-01 origname: sc_orient_time fullnamepath: /orbit_info/sc_orient_time |
| pt1_crossing_track_data_ref_pt: | Array of 32 bit Integers [pt1_crossing_track_data_ref_pt = 0..106597] units: counts DIMENSION_LABELS: ref_pt source: "derived, ATL11 algorithm" description: "The reference-point number of the fit center for the datum track" long_name: "fit center reference point number, segmnent_id" coordinates: delta_time latitude longitude origname: ref_pt fullnamepath: /pt1/crossing_track_data/ref_pt |
| pt1_cycle_number: | Array of 16 bit Integers [pt1_cycle_number = 0..6] units: counts DIMENSION_LABELS: cycle_number description: "cycle number" long_name: "cycle number" source: "ATL06" origname: cycle_number fullnamepath: /pt1/cycle_number |
| pt1_ref_pt: | Array of 32 bit Integers [pt1_ref_pt = 0..40582] units: counts DIMENSION_LABELS: ref_pt description: "The reference point is the segment_id corresponding to the center of the ATL06 data used for each ATL11 point. Segment_id is counted from the equator crossing of the RGT, with one segment every 20m." long_name: "reference point number" source: "ATL06" coordinates: delta_time latitude longitude origname: ref_pt fullnamepath: /pt1/ref_pt |
| pt1_ref_surf_poly_exponent_x: | Array of 16 bit Integers [pt1_ref_surf_poly_exponent_x = 0..7] units: counts DIMENSION_LABELS: poly_exponent_x description: "exponents for the x factors in the surface polynomial" long_name: "polynomial x exponents" source: "derived, ATL11 algorithm" origname: poly_exponent_x fullnamepath: /pt1/ref_surf/poly_exponent_x |
| pt1_ref_surf_poly_exponent_y: | Array of 16 bit Integers [pt1_ref_surf_poly_exponent_y = 0..7] units: counts DIMENSION_LABELS: poly_exponent_y description: "exponents for the y factors in the surface polynomial" long_name: "polynomial y exponents" source: "derived, ATL11 algorithm" origname: poly_exponent_y fullnamepath: /pt1/ref_surf/poly_exponent_y |
| pt2_crossing_track_data_ref_pt: | Array of 32 bit Integers [pt2_crossing_track_data_ref_pt = 0..101383] units: counts DIMENSION_LABELS: ref_pt source: "derived, ATL11 algorithm" description: "The reference-point number of the fit center for the datum track" long_name: "fit center reference point number, segmnent_id" coordinates: delta_time latitude longitude origname: ref_pt fullnamepath: /pt2/crossing_track_data/ref_pt |
| pt2_cycle_number: | Array of 16 bit Integers [pt2_cycle_number = 0..6] units: counts DIMENSION_LABELS: cycle_number description: "cycle number" long_name: "cycle number" source: "ATL06" origname: cycle_number fullnamepath: /pt2/cycle_number |
| pt2_ref_pt: | Array of 32 bit Integers [pt2_ref_pt = 0..40581] units: counts DIMENSION_LABELS: ref_pt description: "The reference point is the segment_id corresponding to the center of the ATL06 data used for each ATL11 point. Segment_id is counted from the equator crossing of the RGT, with one segment every 20m." long_name: "reference point number" source: "ATL06" coordinates: delta_time latitude longitude origname: ref_pt fullnamepath: /pt2/ref_pt |
| pt2_ref_surf_poly_exponent_x: | Array of 16 bit Integers [pt2_ref_surf_poly_exponent_x = 0..7] units: counts DIMENSION_LABELS: poly_exponent_x description: "exponents for the x factors in the surface polynomial" long_name: "polynomial x exponents" source: "derived, ATL11 algorithm" origname: poly_exponent_x fullnamepath: /pt2/ref_surf/poly_exponent_x |
| pt2_ref_surf_poly_exponent_y: | Array of 16 bit Integers [pt2_ref_surf_poly_exponent_y = 0..7] units: counts DIMENSION_LABELS: poly_exponent_y description: "exponents for the y factors in the surface polynomial" long_name: "polynomial y exponents" source: "derived, ATL11 algorithm" origname: poly_exponent_y fullnamepath: /pt2/ref_surf/poly_exponent_y |
| pt3_crossing_track_data_ref_pt: | Array of 32 bit Integers [pt3_crossing_track_data_ref_pt = 0..99554] units: counts DIMENSION_LABELS: ref_pt source: "derived, ATL11 algorithm" description: "The reference-point number of the fit center for the datum track" long_name: "fit center reference point number, segmnent_id" coordinates: delta_time latitude longitude origname: ref_pt fullnamepath: /pt3/crossing_track_data/ref_pt |
| pt3_cycle_number: | Array of 16 bit Integers [pt3_cycle_number = 0..6] units: counts DIMENSION_LABELS: cycle_number description: "cycle number" long_name: "cycle number" source: "ATL06" origname: cycle_number fullnamepath: /pt3/cycle_number |
| pt3_ref_pt: | Array of 32 bit Integers [pt3_ref_pt = 0..40582] units: counts DIMENSION_LABELS: ref_pt description: "The reference point is the segment_id corresponding to the center of the ATL06 data used for each ATL11 point. Segment_id is counted from the equator crossing of the RGT, with one segment every 20m." long_name: "reference point number" source: "ATL06" coordinates: delta_time latitude longitude origname: ref_pt fullnamepath: /pt3/ref_pt |
| pt3_ref_surf_poly_exponent_x: | Array of 16 bit Integers [pt3_ref_surf_poly_exponent_x = 0..7] units: counts DIMENSION_LABELS: poly_exponent_x description: "exponents for the x factors in the surface polynomial" long_name: "polynomial x exponents" source: "derived, ATL11 algorithm" origname: poly_exponent_x fullnamepath: /pt3/ref_surf/poly_exponent_x |
| pt3_ref_surf_poly_exponent_y: | Array of 16 bit Integers [pt3_ref_surf_poly_exponent_y = 0..7] units: counts DIMENSION_LABELS: poly_exponent_y description: "exponents for the y factors in the surface polynomial" long_name: "polynomial y exponents" source: "derived, ATL11 algorithm" origname: poly_exponent_y fullnamepath: /pt3/ref_surf/poly_exponent_y |
| FakeDim0: | Array of 32 bit Integers [FakeDim0 = 0..0] units: level |