| short_name: | ATL22 |
| level: | L3B |
| title: | SET_BY_META |
| description: | This data set (ATL22) contains mean transect parameters and estimates of mean water body height, maximum slope and aspect, for approximately equilateral triangular planar surfaces. |
| Conventions: | CF-1.6 |
| contributor_name: | Thomas A 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) |
| contributor_role: | Instrument Engineer, Investigator, Principle Investigator, Data Producer, Data Producer |
| date_type: | UTC |
| featureType: | trajectory |
| geospatial_lat_units: | degrees_north |
| geospatial_lon_units: | degrees_east |
| granule_type: | ATL22 |
| identifier_product_doi_authority: | http://dx.doi.org |
| 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_type: | CCSDS UTC-A |
| date_created: | 2023-06-30T15:53:25.000000Z |
| hdfversion: | HDF5 1.10.7 |
| history: | 2023-06-30T15:53:25.000000Z;f8ad6205-680c-3da1-8dbd-903418b35850;Created by PGE atlas_l3b_iw Version 2.0 |
| identifier_file_uuid: | f8ad6205-680c-3da1-8dbd-903418b35850 |
| identifier_product_format_version: | 2.0 |
| time_coverage_duration: | 90518.000000000000 |
| time_coverage_end: | 2021-07-13T01:47:43.000000Z |
| time_coverage_start: | 2021-07-12T00:39:05.000000Z |
| geospatial_lat_min: | -78.437707725622772 |
| geospatial_lon_min: | -179.86160769072470 |
| geospatial_lat_max: | 83.674758465360867 |
| geospatial_lon_max: | 173.20485571678853 |
| publisher_name: | NSIDC DAAC > NASA National Snow and Ice Data Center Distributed Active Archive Center |
| publisher_email: | nsidc@nsidc.org |
| publisher_url: | https://nsidc.org/daac/ |
| identifier_product_type: | ATL22 |
| identifier_product_doi: | doi:10.5067/ATLAS/ATL22.003 |
| institution: | National Aeronautics and Space Administration (NASA) |
| creator_name: | GSFC I-SIPS > ICESat-2 Science Investigator-led Processing System |
| summary: | Scientific Research |
| keywords: | EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES > LAKES/RESERVOIRS > Elevation |
| 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: | gt1l_transect_time, gt1r_transect_time, gt2l_transect_time, gt2r_transect_time, gt3l_transect_time, gt3r_transect_time, orbit_info_crossing_time, orbit_info_sc_orient_time |
| orbit_info_cycle_number: | Array of 16 bit Integers [orbit_info_crossing_time = 0..15] long_name: Cycle Number units: 1 source: Operations valid_min: 0 valid_max: 50 contentType: referenceInformation description: A count of the number of exact repeats of this reference orbit. origname: cycle_number fullnamepath: /orbit_info/cycle_number coordinates: orbit_info_crossing_time |
| orbit_info_orbit_number: | Array of 16 bit Unsigned integers [orbit_info_crossing_time = 0..15] long_name: Orbit Number units: 1 source: Operations valid_min: 1 valid_max: 65000 contentType: referenceInformation description: Unique identifying number for each planned ICESat-2 orbit. origname: orbit_number fullnamepath: /orbit_info/orbit_number coordinates: orbit_info_crossing_time |
| orbit_info_lan: | Array of 64 bit Reals [orbit_info_crossing_time = 0..15] long_name: Ascending Node Longitude units: degrees_east source: POD/PPD valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude at the ascending node crossing. origname: lan fullnamepath: /orbit_info/lan coordinates: orbit_info_crossing_time |
| orbit_info_sc_orient: | Array of 16 bit Integers [orbit_info_sc_orient_time = 0..0] long_name: Spacecraft Orientation units: 1 source: POD/PPD valid_min: 0 valid_max: 2 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 origname: sc_orient fullnamepath: /orbit_info/sc_orient coordinates: orbit_info_sc_orient_time |
| orbit_info_rgt: | Array of 16 bit Integers [orbit_info_crossing_time = 0..15] long_name: Reference Ground track units: 1 source: POD/PPD valid_min: 1 valid_max: 1387 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 GT3 and GT4. During slews or off-pointing, it is possible that ground tracks may intersect the RGT. The ICESat-2 mission has 1387 RGTs. origname: rgt fullnamepath: /orbit_info/rgt coordinates: orbit_info_crossing_time |
| gt1r_transect_start_lat: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] long_name: Start Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect start, determined by the latitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lat fullnamepath: /gt1r/transect_start_lat coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_mean_time: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] _FillValue: 1.7976931348623157e+308 long_name: Mean Time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Mean time of the transect, calculated as mean of all filtered sseg times in the transect. origname: transect_mean_time fullnamepath: /gt1r/transect_mean_time coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_id: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 2147483647 long_name: Transect ID units: 1 source: Section 5.4 contentType: referenceInformation description: Transect within a water body to which the short segment rate output belongs. origname: transect_id fullnamepath: /gt1r/transect_id coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_mean_ht_WGS84: | Array of 32 bit Reals [gt1r_transect_time = 0..2799] _FillValue: 3.402823466e+38 long_name: Transect mean height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean geodetic height of the transect with respect to the WGS84 ellipsoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_WGS84 fullnamepath: /gt1r/transect_mean_ht_WGS84 coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_inland_water_body_type: | Array of 16 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 127 long_name: Body type units: 1 source: Section 5.4 valid_min: 1 valid_max: 9 contentType: referenceInformation description: Type of Inland Water Body, where 1=Lake, 2=Known Reservoir, 3=(Reserved for future use), 4=Ephemeral Water, 5=River, 6=Estuary or Bay, 7=Coastal Water, 8=Reserved, 9=Reserved flag_meanings: Lake Known_Reservoir Reserved_for_future_use Ephemeral_Water River Estuary_or_Bay Coastal_Water Reserved Reserved flag_values: 1, 2, 3, 4, 5, 6, 7, 8, 9 origname: inland_water_body_type fullnamepath: /gt1r/inland_water_body_type coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_inland_water_body_id: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] units: 1 source: Section 5.4 contentType: referenceInformation description: Identifying signature of an individual inland water body. Each body of water is represented by a unique numeric value. _FillValue: 2147483647 long_name: Body ID origname: inland_water_body_id fullnamepath: /gt1r/inland_water_body_id coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_lseg2_cnt: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 2147483647 long_name: Very long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete very long segments in the transect. origname: transect_lseg2_cnt fullnamepath: /gt1r/transect_lseg2_cnt coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_lat: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] long_name: Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: modelResult description: Reporting latitude of transect statistics. origname: transect_lat fullnamepath: /gt1r/transect_lat coordinates: gt1r_transect_time |
| gt1r_transect_mean_stdev_water_surf: | Array of 32 bit Reals [gt1r_transect_time = 0..2799] _FillValue: 3.402823466e+38 long_name: Surface StDev units: meters source: Section 5.4 contentType: referenceInformation description: Mean standard deviation of the transect water surface, determined based on filtered short segments. (Deferred for rivers; populated with invalid values in rel003) origname: transect_mean_stdev_water_surf fullnamepath: /gt1r/transect_mean_stdev_water_surf coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_end_lat: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] long_name: End Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect end, determined by the latitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lat fullnamepath: /gt1r/transect_end_lat coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_lseg_cnt: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 2147483647 long_name: Long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete long segments in the transect. origname: transect_lseg_cnt fullnamepath: /gt1r/transect_lseg_cnt coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_lon: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] long_name: Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: modelResult description: Reporting longitude of transect statistics. origname: transect_lon fullnamepath: /gt1r/transect_lon coordinates: gt1r_transect_time |
| gt1r_inland_water_body_region: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 2147483647 long_name: Body region units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13-created shapefile representing relevant bodies of water over which to implement the ATL13 water surface finding algorithm only within a region of processing interest. origname: inland_water_body_region fullnamepath: /gt1r/inland_water_body_region coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_mean_lat: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] _FillValue: 1.7976931348623157e+308 long_name: Mean Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Mean latitude of the transect, calculated as mean of all filtered sseg latitudes in the transect. origname: transect_mean_lat fullnamepath: /gt1r/transect_mean_lat coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_length: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] _FillValue: 1.7976931348623157e+308 long_name: Transect length units: meters source: Section 5.4 contentType: referenceInformation description: Length of the transect, determined as the distance from the first filtered observed reference photon in the water body to the final filtered observed photon in the body. origname: transect_length fullnamepath: /gt1r/transect_length coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_atl13_gran_ndx: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13 granule index, indicating from which ATL13 granule in /METADATA/Lineage/ATL13/fileName an ATL22 transect product was derived. _FillValue: 2147483647 long_name: Granule Index origname: atl13_gran_ndx fullnamepath: /gt1r/atl13_gran_ndx coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_sseg_cnt_filtered: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of filtered ATL13 non-anomalous short segments in the transect used in ATL22 mean product calculations. origname: transect_sseg_cnt_filtered fullnamepath: /gt1r/transect_sseg_cnt_filtered coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_start_sseg_idx: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 2147483647 long_name: Index of first entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of first entry in ATL13 short segment rate output data contributing to transect summary origname: transect_start_sseg_idx fullnamepath: /gt1r/transect_start_sseg_idx coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_end_lon: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] long_name: End Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect end, determined by the longitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lon fullnamepath: /gt1r/transect_end_lon coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_start_lon: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] long_name: Start Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect start, determined by the longitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lon fullnamepath: /gt1r/transect_start_lon coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_mean_subsurf_atten: | Array of 32 bit Reals [gt1r_transect_time = 0..2799] _FillValue: 3.402823466e+38 long_name: Subsurface Attenuation units: m^-1 source: Section 5.4 contentType: referenceInformation description: Mean subsurface attenuation (alpha) of the transect, determined as the mean of all filtered alphas along the transect. origname: transect_mean_subsurf_atten fullnamepath: /gt1r/transect_mean_subsurf_atten coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_mean_lon: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] long_name: Mean Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Mean longitude of the transect, calculated as mean of all filtered sseg longitudes in the transect. origname: transect_mean_lon fullnamepath: /gt1r/transect_mean_lon coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_mean_ht_ortho: | Array of 32 bit Reals [gt1r_transect_time = 0..2799] _FillValue: 3.402823466e+38 long_name: Transect mean orthometric height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean orthometric height of the transect with respect to the EGM2008 geoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_ortho fullnamepath: /gt1r/transect_mean_ht_ortho coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_mean_time_utc: | Array of Strings [gt1r_transect_time = 0..2799] long_name: Mean UTC Time (CCSDS-A) standard_name: time units: 1 source: Derived contentType: auxiliaryInformation description: Mean time of the transect in UTC format YYYY-MM-DDTHH:MM:SS.SSSSSSZ. origname: transect_mean_time_utc fullnamepath: /gt1r/transect_mean_time_utc coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_end_sseg_idx: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 2147483647 long_name: Index of final entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of final entry in ATL13 short segment rate output data contributing to transect summary. origname: transect_end_sseg_idx fullnamepath: /gt1r/transect_end_sseg_idx coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_end_time: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect end, determined by the time of the index photon in the last filtered short segment in the transect. _FillValue: 1.7976931348623157e+308 long_name: Transect end time origname: transect_end_time fullnamepath: /gt1r/transect_end_time coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_sseg_cnt: | Array of 32 bit Integers [gt1r_transect_time = 0..2799] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of available ATL13 non-anomalous short segments in the transect. origname: transect_sseg_cnt fullnamepath: /gt1r/transect_sseg_cnt coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt1r_transect_start_time: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] _FillValue: 1.7976931348623157e+308 long_name: Transect start time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect start, determined by the time of the index photon in the first filtered short segment in the transect. origname: transect_start_time fullnamepath: /gt1r/transect_start_time coordinates: gt1r_transect_time gt1r_transect_lat gt1r_transect_lon |
| gt2r_transect_start_lat: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] long_name: Start Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect start, determined by the latitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lat fullnamepath: /gt2r/transect_start_lat coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_mean_time: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] _FillValue: 1.7976931348623157e+308 long_name: Mean Time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Mean time of the transect, calculated as mean of all filtered sseg times in the transect. origname: transect_mean_time fullnamepath: /gt2r/transect_mean_time coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_id: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 2147483647 long_name: Transect ID units: 1 source: Section 5.4 contentType: referenceInformation description: Transect within a water body to which the short segment rate output belongs. origname: transect_id fullnamepath: /gt2r/transect_id coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_mean_ht_WGS84: | Array of 32 bit Reals [gt2r_transect_time = 0..2993] _FillValue: 3.402823466e+38 long_name: Transect mean height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean geodetic height of the transect with respect to the WGS84 ellipsoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_WGS84 fullnamepath: /gt2r/transect_mean_ht_WGS84 coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_inland_water_body_type: | Array of 16 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 127 long_name: Body type units: 1 source: Section 5.4 valid_min: 1 valid_max: 9 contentType: referenceInformation description: Type of Inland Water Body, where 1=Lake, 2=Known Reservoir, 3=(Reserved for future use), 4=Ephemeral Water, 5=River, 6=Estuary or Bay, 7=Coastal Water, 8=Reserved, 9=Reserved flag_meanings: Lake Known_Reservoir Reserved_for_future_use Ephemeral_Water River Estuary_or_Bay Coastal_Water Reserved Reserved flag_values: 1, 2, 3, 4, 5, 6, 7, 8, 9 origname: inland_water_body_type fullnamepath: /gt2r/inland_water_body_type coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_inland_water_body_id: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] units: 1 source: Section 5.4 contentType: referenceInformation description: Identifying signature of an individual inland water body. Each body of water is represented by a unique numeric value. _FillValue: 2147483647 long_name: Body ID origname: inland_water_body_id fullnamepath: /gt2r/inland_water_body_id coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_lseg2_cnt: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 2147483647 long_name: Very long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete very long segments in the transect. origname: transect_lseg2_cnt fullnamepath: /gt2r/transect_lseg2_cnt coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_lat: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] long_name: Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: modelResult description: Reporting latitude of transect statistics. origname: transect_lat fullnamepath: /gt2r/transect_lat coordinates: gt2r_transect_time |
| gt2r_transect_mean_stdev_water_surf: | Array of 32 bit Reals [gt2r_transect_time = 0..2993] _FillValue: 3.402823466e+38 long_name: Surface StDev units: meters source: Section 5.4 contentType: referenceInformation description: Mean standard deviation of the transect water surface, determined based on filtered short segments. (Deferred for rivers; populated with invalid values in rel003) origname: transect_mean_stdev_water_surf fullnamepath: /gt2r/transect_mean_stdev_water_surf coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_end_lat: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] long_name: End Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect end, determined by the latitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lat fullnamepath: /gt2r/transect_end_lat coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_lseg_cnt: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 2147483647 long_name: Long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete long segments in the transect. origname: transect_lseg_cnt fullnamepath: /gt2r/transect_lseg_cnt coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_lon: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] long_name: Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: modelResult description: Reporting longitude of transect statistics. origname: transect_lon fullnamepath: /gt2r/transect_lon coordinates: gt2r_transect_time |
| gt2r_inland_water_body_region: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 2147483647 long_name: Body region units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13-created shapefile representing relevant bodies of water over which to implement the ATL13 water surface finding algorithm only within a region of processing interest. origname: inland_water_body_region fullnamepath: /gt2r/inland_water_body_region coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_mean_lat: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] _FillValue: 1.7976931348623157e+308 long_name: Mean Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Mean latitude of the transect, calculated as mean of all filtered sseg latitudes in the transect. origname: transect_mean_lat fullnamepath: /gt2r/transect_mean_lat coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_length: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] _FillValue: 1.7976931348623157e+308 long_name: Transect length units: meters source: Section 5.4 contentType: referenceInformation description: Length of the transect, determined as the distance from the first filtered observed reference photon in the water body to the final filtered observed photon in the body. origname: transect_length fullnamepath: /gt2r/transect_length coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_atl13_gran_ndx: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13 granule index, indicating from which ATL13 granule in /METADATA/Lineage/ATL13/fileName an ATL22 transect product was derived. _FillValue: 2147483647 long_name: Granule Index origname: atl13_gran_ndx fullnamepath: /gt2r/atl13_gran_ndx coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_sseg_cnt_filtered: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of filtered ATL13 non-anomalous short segments in the transect used in ATL22 mean product calculations. origname: transect_sseg_cnt_filtered fullnamepath: /gt2r/transect_sseg_cnt_filtered coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_start_sseg_idx: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 2147483647 long_name: Index of first entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of first entry in ATL13 short segment rate output data contributing to transect summary origname: transect_start_sseg_idx fullnamepath: /gt2r/transect_start_sseg_idx coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_end_lon: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] long_name: End Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect end, determined by the longitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lon fullnamepath: /gt2r/transect_end_lon coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_start_lon: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] long_name: Start Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect start, determined by the longitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lon fullnamepath: /gt2r/transect_start_lon coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_mean_subsurf_atten: | Array of 32 bit Reals [gt2r_transect_time = 0..2993] _FillValue: 3.402823466e+38 long_name: Subsurface Attenuation units: m^-1 source: Section 5.4 contentType: referenceInformation description: Mean subsurface attenuation (alpha) of the transect, determined as the mean of all filtered alphas along the transect. origname: transect_mean_subsurf_atten fullnamepath: /gt2r/transect_mean_subsurf_atten coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_mean_lon: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] long_name: Mean Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Mean longitude of the transect, calculated as mean of all filtered sseg longitudes in the transect. origname: transect_mean_lon fullnamepath: /gt2r/transect_mean_lon coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_mean_ht_ortho: | Array of 32 bit Reals [gt2r_transect_time = 0..2993] _FillValue: 3.402823466e+38 long_name: Transect mean orthometric height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean orthometric height of the transect with respect to the EGM2008 geoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_ortho fullnamepath: /gt2r/transect_mean_ht_ortho coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_mean_time_utc: | Array of Strings [gt2r_transect_time = 0..2993] long_name: Mean UTC Time (CCSDS-A) standard_name: time units: 1 source: Derived contentType: auxiliaryInformation description: Mean time of the transect in UTC format YYYY-MM-DDTHH:MM:SS.SSSSSSZ. origname: transect_mean_time_utc fullnamepath: /gt2r/transect_mean_time_utc coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_end_sseg_idx: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 2147483647 long_name: Index of final entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of final entry in ATL13 short segment rate output data contributing to transect summary. origname: transect_end_sseg_idx fullnamepath: /gt2r/transect_end_sseg_idx coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_end_time: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect end, determined by the time of the index photon in the last filtered short segment in the transect. _FillValue: 1.7976931348623157e+308 long_name: Transect end time origname: transect_end_time fullnamepath: /gt2r/transect_end_time coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_sseg_cnt: | Array of 32 bit Integers [gt2r_transect_time = 0..2993] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of available ATL13 non-anomalous short segments in the transect. origname: transect_sseg_cnt fullnamepath: /gt2r/transect_sseg_cnt coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt2r_transect_start_time: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] _FillValue: 1.7976931348623157e+308 long_name: Transect start time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect start, determined by the time of the index photon in the first filtered short segment in the transect. origname: transect_start_time fullnamepath: /gt2r/transect_start_time coordinates: gt2r_transect_time gt2r_transect_lat gt2r_transect_lon |
| gt1l_transect_start_lat: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] long_name: Start Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect start, determined by the latitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lat fullnamepath: /gt1l/transect_start_lat coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_mean_time: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] _FillValue: 1.7976931348623157e+308 long_name: Mean Time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Mean time of the transect, calculated as mean of all filtered sseg times in the transect. origname: transect_mean_time fullnamepath: /gt1l/transect_mean_time coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_id: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 2147483647 long_name: Transect ID units: 1 source: Section 5.4 contentType: referenceInformation description: Transect within a water body to which the short segment rate output belongs. origname: transect_id fullnamepath: /gt1l/transect_id coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_mean_ht_WGS84: | Array of 32 bit Reals [gt1l_transect_time = 0..2390] _FillValue: 3.402823466e+38 long_name: Transect mean height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean geodetic height of the transect with respect to the WGS84 ellipsoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_WGS84 fullnamepath: /gt1l/transect_mean_ht_WGS84 coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_inland_water_body_type: | Array of 16 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 127 long_name: Body type units: 1 source: Section 5.4 valid_min: 1 valid_max: 9 contentType: referenceInformation description: Type of Inland Water Body, where 1=Lake, 2=Known Reservoir, 3=(Reserved for future use), 4=Ephemeral Water, 5=River, 6=Estuary or Bay, 7=Coastal Water, 8=Reserved, 9=Reserved flag_meanings: Lake Known_Reservoir Reserved_for_future_use Ephemeral_Water River Estuary_or_Bay Coastal_Water Reserved Reserved flag_values: 1, 2, 3, 4, 5, 6, 7, 8, 9 origname: inland_water_body_type fullnamepath: /gt1l/inland_water_body_type coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_inland_water_body_id: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] units: 1 source: Section 5.4 contentType: referenceInformation description: Identifying signature of an individual inland water body. Each body of water is represented by a unique numeric value. _FillValue: 2147483647 long_name: Body ID origname: inland_water_body_id fullnamepath: /gt1l/inland_water_body_id coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_lseg2_cnt: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 2147483647 long_name: Very long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete very long segments in the transect. origname: transect_lseg2_cnt fullnamepath: /gt1l/transect_lseg2_cnt coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_lat: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] long_name: Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: modelResult description: Reporting latitude of transect statistics. origname: transect_lat fullnamepath: /gt1l/transect_lat coordinates: gt1l_transect_time |
| gt1l_transect_mean_stdev_water_surf: | Array of 32 bit Reals [gt1l_transect_time = 0..2390] _FillValue: 3.402823466e+38 long_name: Surface StDev units: meters source: Section 5.4 contentType: referenceInformation description: Mean standard deviation of the transect water surface, determined based on filtered short segments. (Deferred for rivers; populated with invalid values in rel003) origname: transect_mean_stdev_water_surf fullnamepath: /gt1l/transect_mean_stdev_water_surf coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_end_lat: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] long_name: End Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect end, determined by the latitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lat fullnamepath: /gt1l/transect_end_lat coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_lseg_cnt: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 2147483647 long_name: Long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete long segments in the transect. origname: transect_lseg_cnt fullnamepath: /gt1l/transect_lseg_cnt coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_lon: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] long_name: Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: modelResult description: Reporting longitude of transect statistics. origname: transect_lon fullnamepath: /gt1l/transect_lon coordinates: gt1l_transect_time |
| gt1l_inland_water_body_region: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 2147483647 long_name: Body region units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13-created shapefile representing relevant bodies of water over which to implement the ATL13 water surface finding algorithm only within a region of processing interest. origname: inland_water_body_region fullnamepath: /gt1l/inland_water_body_region coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_mean_lat: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] _FillValue: 1.7976931348623157e+308 long_name: Mean Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Mean latitude of the transect, calculated as mean of all filtered sseg latitudes in the transect. origname: transect_mean_lat fullnamepath: /gt1l/transect_mean_lat coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_length: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] _FillValue: 1.7976931348623157e+308 long_name: Transect length units: meters source: Section 5.4 contentType: referenceInformation description: Length of the transect, determined as the distance from the first filtered observed reference photon in the water body to the final filtered observed photon in the body. origname: transect_length fullnamepath: /gt1l/transect_length coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_atl13_gran_ndx: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13 granule index, indicating from which ATL13 granule in /METADATA/Lineage/ATL13/fileName an ATL22 transect product was derived. _FillValue: 2147483647 long_name: Granule Index origname: atl13_gran_ndx fullnamepath: /gt1l/atl13_gran_ndx coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_sseg_cnt_filtered: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of filtered ATL13 non-anomalous short segments in the transect used in ATL22 mean product calculations. origname: transect_sseg_cnt_filtered fullnamepath: /gt1l/transect_sseg_cnt_filtered coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_start_sseg_idx: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 2147483647 long_name: Index of first entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of first entry in ATL13 short segment rate output data contributing to transect summary origname: transect_start_sseg_idx fullnamepath: /gt1l/transect_start_sseg_idx coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_end_lon: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] long_name: End Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect end, determined by the longitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lon fullnamepath: /gt1l/transect_end_lon coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_start_lon: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] long_name: Start Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect start, determined by the longitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lon fullnamepath: /gt1l/transect_start_lon coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_mean_subsurf_atten: | Array of 32 bit Reals [gt1l_transect_time = 0..2390] _FillValue: 3.402823466e+38 long_name: Subsurface Attenuation units: m^-1 source: Section 5.4 contentType: referenceInformation description: Mean subsurface attenuation (alpha) of the transect, determined as the mean of all filtered alphas along the transect. origname: transect_mean_subsurf_atten fullnamepath: /gt1l/transect_mean_subsurf_atten coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_mean_lon: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] long_name: Mean Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Mean longitude of the transect, calculated as mean of all filtered sseg longitudes in the transect. origname: transect_mean_lon fullnamepath: /gt1l/transect_mean_lon coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_mean_ht_ortho: | Array of 32 bit Reals [gt1l_transect_time = 0..2390] _FillValue: 3.402823466e+38 long_name: Transect mean orthometric height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean orthometric height of the transect with respect to the EGM2008 geoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_ortho fullnamepath: /gt1l/transect_mean_ht_ortho coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_mean_time_utc: | Array of Strings [gt1l_transect_time = 0..2390] long_name: Mean UTC Time (CCSDS-A) standard_name: time units: 1 source: Derived contentType: auxiliaryInformation description: Mean time of the transect in UTC format YYYY-MM-DDTHH:MM:SS.SSSSSSZ. origname: transect_mean_time_utc fullnamepath: /gt1l/transect_mean_time_utc coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_end_sseg_idx: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 2147483647 long_name: Index of final entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of final entry in ATL13 short segment rate output data contributing to transect summary. origname: transect_end_sseg_idx fullnamepath: /gt1l/transect_end_sseg_idx coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_end_time: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect end, determined by the time of the index photon in the last filtered short segment in the transect. _FillValue: 1.7976931348623157e+308 long_name: Transect end time origname: transect_end_time fullnamepath: /gt1l/transect_end_time coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_sseg_cnt: | Array of 32 bit Integers [gt1l_transect_time = 0..2390] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of available ATL13 non-anomalous short segments in the transect. origname: transect_sseg_cnt fullnamepath: /gt1l/transect_sseg_cnt coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| gt1l_transect_start_time: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] _FillValue: 1.7976931348623157e+308 long_name: Transect start time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect start, determined by the time of the index photon in the first filtered short segment in the transect. origname: transect_start_time fullnamepath: /gt1l/transect_start_time coordinates: gt1l_transect_time gt1l_transect_lat gt1l_transect_lon |
| 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 failure; 2=insufficient data; 3=TBD3; 4=TBD4; 5=TBD5 flag_meanings: no_failure processing_failure insufficient_data TBD3 TBD4 TBD5 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 |
| gt3l_transect_start_lat: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] long_name: Start Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect start, determined by the latitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lat fullnamepath: /gt3l/transect_start_lat coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_mean_time: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] _FillValue: 1.7976931348623157e+308 long_name: Mean Time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Mean time of the transect, calculated as mean of all filtered sseg times in the transect. origname: transect_mean_time fullnamepath: /gt3l/transect_mean_time coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_id: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 2147483647 long_name: Transect ID units: 1 source: Section 5.4 contentType: referenceInformation description: Transect within a water body to which the short segment rate output belongs. origname: transect_id fullnamepath: /gt3l/transect_id coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_mean_ht_WGS84: | Array of 32 bit Reals [gt3l_transect_time = 0..2563] _FillValue: 3.402823466e+38 long_name: Transect mean height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean geodetic height of the transect with respect to the WGS84 ellipsoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_WGS84 fullnamepath: /gt3l/transect_mean_ht_WGS84 coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_inland_water_body_type: | Array of 16 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 127 long_name: Body type units: 1 source: Section 5.4 valid_min: 1 valid_max: 9 contentType: referenceInformation description: Type of Inland Water Body, where 1=Lake, 2=Known Reservoir, 3=(Reserved for future use), 4=Ephemeral Water, 5=River, 6=Estuary or Bay, 7=Coastal Water, 8=Reserved, 9=Reserved flag_meanings: Lake Known_Reservoir Reserved_for_future_use Ephemeral_Water River Estuary_or_Bay Coastal_Water Reserved Reserved flag_values: 1, 2, 3, 4, 5, 6, 7, 8, 9 origname: inland_water_body_type fullnamepath: /gt3l/inland_water_body_type coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_inland_water_body_id: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] units: 1 source: Section 5.4 contentType: referenceInformation description: Identifying signature of an individual inland water body. Each body of water is represented by a unique numeric value. _FillValue: 2147483647 long_name: Body ID origname: inland_water_body_id fullnamepath: /gt3l/inland_water_body_id coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_lseg2_cnt: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 2147483647 long_name: Very long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete very long segments in the transect. origname: transect_lseg2_cnt fullnamepath: /gt3l/transect_lseg2_cnt coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_lat: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] long_name: Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: modelResult description: Reporting latitude of transect statistics. origname: transect_lat fullnamepath: /gt3l/transect_lat coordinates: gt3l_transect_time |
| gt3l_transect_mean_stdev_water_surf: | Array of 32 bit Reals [gt3l_transect_time = 0..2563] _FillValue: 3.402823466e+38 long_name: Surface StDev units: meters source: Section 5.4 contentType: referenceInformation description: Mean standard deviation of the transect water surface, determined based on filtered short segments. (Deferred for rivers; populated with invalid values in rel003) origname: transect_mean_stdev_water_surf fullnamepath: /gt3l/transect_mean_stdev_water_surf coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_end_lat: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] long_name: End Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect end, determined by the latitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lat fullnamepath: /gt3l/transect_end_lat coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_lseg_cnt: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 2147483647 long_name: Long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete long segments in the transect. origname: transect_lseg_cnt fullnamepath: /gt3l/transect_lseg_cnt coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_lon: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] long_name: Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: modelResult description: Reporting longitude of transect statistics. origname: transect_lon fullnamepath: /gt3l/transect_lon coordinates: gt3l_transect_time |
| gt3l_inland_water_body_region: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 2147483647 long_name: Body region units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13-created shapefile representing relevant bodies of water over which to implement the ATL13 water surface finding algorithm only within a region of processing interest. origname: inland_water_body_region fullnamepath: /gt3l/inland_water_body_region coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_mean_lat: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] _FillValue: 1.7976931348623157e+308 long_name: Mean Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Mean latitude of the transect, calculated as mean of all filtered sseg latitudes in the transect. origname: transect_mean_lat fullnamepath: /gt3l/transect_mean_lat coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_length: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] _FillValue: 1.7976931348623157e+308 long_name: Transect length units: meters source: Section 5.4 contentType: referenceInformation description: Length of the transect, determined as the distance from the first filtered observed reference photon in the water body to the final filtered observed photon in the body. origname: transect_length fullnamepath: /gt3l/transect_length coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_atl13_gran_ndx: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13 granule index, indicating from which ATL13 granule in /METADATA/Lineage/ATL13/fileName an ATL22 transect product was derived. _FillValue: 2147483647 long_name: Granule Index origname: atl13_gran_ndx fullnamepath: /gt3l/atl13_gran_ndx coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_sseg_cnt_filtered: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of filtered ATL13 non-anomalous short segments in the transect used in ATL22 mean product calculations. origname: transect_sseg_cnt_filtered fullnamepath: /gt3l/transect_sseg_cnt_filtered coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_start_sseg_idx: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 2147483647 long_name: Index of first entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of first entry in ATL13 short segment rate output data contributing to transect summary origname: transect_start_sseg_idx fullnamepath: /gt3l/transect_start_sseg_idx coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_end_lon: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] long_name: End Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect end, determined by the longitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lon fullnamepath: /gt3l/transect_end_lon coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_start_lon: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] long_name: Start Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect start, determined by the longitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lon fullnamepath: /gt3l/transect_start_lon coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_mean_subsurf_atten: | Array of 32 bit Reals [gt3l_transect_time = 0..2563] _FillValue: 3.402823466e+38 long_name: Subsurface Attenuation units: m^-1 source: Section 5.4 contentType: referenceInformation description: Mean subsurface attenuation (alpha) of the transect, determined as the mean of all filtered alphas along the transect. origname: transect_mean_subsurf_atten fullnamepath: /gt3l/transect_mean_subsurf_atten coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_mean_lon: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] long_name: Mean Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Mean longitude of the transect, calculated as mean of all filtered sseg longitudes in the transect. origname: transect_mean_lon fullnamepath: /gt3l/transect_mean_lon coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_mean_ht_ortho: | Array of 32 bit Reals [gt3l_transect_time = 0..2563] _FillValue: 3.402823466e+38 long_name: Transect mean orthometric height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean orthometric height of the transect with respect to the EGM2008 geoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_ortho fullnamepath: /gt3l/transect_mean_ht_ortho coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_mean_time_utc: | Array of Strings [gt3l_transect_time = 0..2563] long_name: Mean UTC Time (CCSDS-A) standard_name: time units: 1 source: Derived contentType: auxiliaryInformation description: Mean time of the transect in UTC format YYYY-MM-DDTHH:MM:SS.SSSSSSZ. origname: transect_mean_time_utc fullnamepath: /gt3l/transect_mean_time_utc coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_end_sseg_idx: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 2147483647 long_name: Index of final entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of final entry in ATL13 short segment rate output data contributing to transect summary. origname: transect_end_sseg_idx fullnamepath: /gt3l/transect_end_sseg_idx coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_end_time: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect end, determined by the time of the index photon in the last filtered short segment in the transect. _FillValue: 1.7976931348623157e+308 long_name: Transect end time origname: transect_end_time fullnamepath: /gt3l/transect_end_time coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_sseg_cnt: | Array of 32 bit Integers [gt3l_transect_time = 0..2563] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of available ATL13 non-anomalous short segments in the transect. origname: transect_sseg_cnt fullnamepath: /gt3l/transect_sseg_cnt coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt3l_transect_start_time: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] _FillValue: 1.7976931348623157e+308 long_name: Transect start time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect start, determined by the time of the index photon in the first filtered short segment in the transect. origname: transect_start_time fullnamepath: /gt3l/transect_start_time coordinates: gt3l_transect_time gt3l_transect_lat gt3l_transect_lon |
| gt2l_transect_start_lat: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] long_name: Start Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect start, determined by the latitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lat fullnamepath: /gt2l/transect_start_lat coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_mean_time: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] _FillValue: 1.7976931348623157e+308 long_name: Mean Time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Mean time of the transect, calculated as mean of all filtered sseg times in the transect. origname: transect_mean_time fullnamepath: /gt2l/transect_mean_time coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_id: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 2147483647 long_name: Transect ID units: 1 source: Section 5.4 contentType: referenceInformation description: Transect within a water body to which the short segment rate output belongs. origname: transect_id fullnamepath: /gt2l/transect_id coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_mean_ht_WGS84: | Array of 32 bit Reals [gt2l_transect_time = 0..2694] _FillValue: 3.402823466e+38 long_name: Transect mean height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean geodetic height of the transect with respect to the WGS84 ellipsoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_WGS84 fullnamepath: /gt2l/transect_mean_ht_WGS84 coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_inland_water_body_type: | Array of 16 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 127 long_name: Body type units: 1 source: Section 5.4 valid_min: 1 valid_max: 9 contentType: referenceInformation description: Type of Inland Water Body, where 1=Lake, 2=Known Reservoir, 3=(Reserved for future use), 4=Ephemeral Water, 5=River, 6=Estuary or Bay, 7=Coastal Water, 8=Reserved, 9=Reserved flag_meanings: Lake Known_Reservoir Reserved_for_future_use Ephemeral_Water River Estuary_or_Bay Coastal_Water Reserved Reserved flag_values: 1, 2, 3, 4, 5, 6, 7, 8, 9 origname: inland_water_body_type fullnamepath: /gt2l/inland_water_body_type coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_inland_water_body_id: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] units: 1 source: Section 5.4 contentType: referenceInformation description: Identifying signature of an individual inland water body. Each body of water is represented by a unique numeric value. _FillValue: 2147483647 long_name: Body ID origname: inland_water_body_id fullnamepath: /gt2l/inland_water_body_id coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_lseg2_cnt: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 2147483647 long_name: Very long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete very long segments in the transect. origname: transect_lseg2_cnt fullnamepath: /gt2l/transect_lseg2_cnt coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_lat: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] long_name: Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: modelResult description: Reporting latitude of transect statistics. origname: transect_lat fullnamepath: /gt2l/transect_lat coordinates: gt2l_transect_time |
| gt2l_transect_mean_stdev_water_surf: | Array of 32 bit Reals [gt2l_transect_time = 0..2694] _FillValue: 3.402823466e+38 long_name: Surface StDev units: meters source: Section 5.4 contentType: referenceInformation description: Mean standard deviation of the transect water surface, determined based on filtered short segments. (Deferred for rivers; populated with invalid values in rel003) origname: transect_mean_stdev_water_surf fullnamepath: /gt2l/transect_mean_stdev_water_surf coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_end_lat: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] long_name: End Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect end, determined by the latitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lat fullnamepath: /gt2l/transect_end_lat coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_lseg_cnt: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 2147483647 long_name: Long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete long segments in the transect. origname: transect_lseg_cnt fullnamepath: /gt2l/transect_lseg_cnt coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_lon: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] long_name: Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: modelResult description: Reporting longitude of transect statistics. origname: transect_lon fullnamepath: /gt2l/transect_lon coordinates: gt2l_transect_time |
| gt2l_inland_water_body_region: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 2147483647 long_name: Body region units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13-created shapefile representing relevant bodies of water over which to implement the ATL13 water surface finding algorithm only within a region of processing interest. origname: inland_water_body_region fullnamepath: /gt2l/inland_water_body_region coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_mean_lat: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] _FillValue: 1.7976931348623157e+308 long_name: Mean Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Mean latitude of the transect, calculated as mean of all filtered sseg latitudes in the transect. origname: transect_mean_lat fullnamepath: /gt2l/transect_mean_lat coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_length: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] _FillValue: 1.7976931348623157e+308 long_name: Transect length units: meters source: Section 5.4 contentType: referenceInformation description: Length of the transect, determined as the distance from the first filtered observed reference photon in the water body to the final filtered observed photon in the body. origname: transect_length fullnamepath: /gt2l/transect_length coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_atl13_gran_ndx: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13 granule index, indicating from which ATL13 granule in /METADATA/Lineage/ATL13/fileName an ATL22 transect product was derived. _FillValue: 2147483647 long_name: Granule Index origname: atl13_gran_ndx fullnamepath: /gt2l/atl13_gran_ndx coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_sseg_cnt_filtered: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of filtered ATL13 non-anomalous short segments in the transect used in ATL22 mean product calculations. origname: transect_sseg_cnt_filtered fullnamepath: /gt2l/transect_sseg_cnt_filtered coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_start_sseg_idx: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 2147483647 long_name: Index of first entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of first entry in ATL13 short segment rate output data contributing to transect summary origname: transect_start_sseg_idx fullnamepath: /gt2l/transect_start_sseg_idx coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_end_lon: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] long_name: End Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect end, determined by the longitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lon fullnamepath: /gt2l/transect_end_lon coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_start_lon: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] long_name: Start Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect start, determined by the longitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lon fullnamepath: /gt2l/transect_start_lon coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_mean_subsurf_atten: | Array of 32 bit Reals [gt2l_transect_time = 0..2694] _FillValue: 3.402823466e+38 long_name: Subsurface Attenuation units: m^-1 source: Section 5.4 contentType: referenceInformation description: Mean subsurface attenuation (alpha) of the transect, determined as the mean of all filtered alphas along the transect. origname: transect_mean_subsurf_atten fullnamepath: /gt2l/transect_mean_subsurf_atten coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_mean_lon: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] long_name: Mean Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Mean longitude of the transect, calculated as mean of all filtered sseg longitudes in the transect. origname: transect_mean_lon fullnamepath: /gt2l/transect_mean_lon coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_mean_ht_ortho: | Array of 32 bit Reals [gt2l_transect_time = 0..2694] _FillValue: 3.402823466e+38 long_name: Transect mean orthometric height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean orthometric height of the transect with respect to the EGM2008 geoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_ortho fullnamepath: /gt2l/transect_mean_ht_ortho coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_mean_time_utc: | Array of Strings [gt2l_transect_time = 0..2694] long_name: Mean UTC Time (CCSDS-A) standard_name: time units: 1 source: Derived contentType: auxiliaryInformation description: Mean time of the transect in UTC format YYYY-MM-DDTHH:MM:SS.SSSSSSZ. origname: transect_mean_time_utc fullnamepath: /gt2l/transect_mean_time_utc coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_end_sseg_idx: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 2147483647 long_name: Index of final entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of final entry in ATL13 short segment rate output data contributing to transect summary. origname: transect_end_sseg_idx fullnamepath: /gt2l/transect_end_sseg_idx coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_end_time: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect end, determined by the time of the index photon in the last filtered short segment in the transect. _FillValue: 1.7976931348623157e+308 long_name: Transect end time origname: transect_end_time fullnamepath: /gt2l/transect_end_time coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_sseg_cnt: | Array of 32 bit Integers [gt2l_transect_time = 0..2694] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of available ATL13 non-anomalous short segments in the transect. origname: transect_sseg_cnt fullnamepath: /gt2l/transect_sseg_cnt coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| gt2l_transect_start_time: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] _FillValue: 1.7976931348623157e+308 long_name: Transect start time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect start, determined by the time of the index photon in the first filtered short segment in the transect. origname: transect_start_time fullnamepath: /gt2l/transect_start_time coordinates: gt2l_transect_time gt2l_transect_lat gt2l_transect_lon |
| 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_inland_water_sig_threshold: | Array of 32 bit Integers [FakeDim0 = 0..0] long_name: Signal Confidence Threshold units: 1 source: ATBD Table 5-2 contentType: auxiliaryInformation description: Minimum signal confidence required for photon to be included in analysis origname: sig_threshold fullnamepath: /ancillary_data/inland_water/sig_threshold |
| 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_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 |
| gt3r_transect_start_lat: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] long_name: Start Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect start, determined by the latitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lat fullnamepath: /gt3r/transect_start_lat coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_mean_time: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] _FillValue: 1.7976931348623157e+308 long_name: Mean Time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Mean time of the transect, calculated as mean of all filtered sseg times in the transect. origname: transect_mean_time fullnamepath: /gt3r/transect_mean_time coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_id: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 2147483647 long_name: Transect ID units: 1 source: Section 5.4 contentType: referenceInformation description: Transect within a water body to which the short segment rate output belongs. origname: transect_id fullnamepath: /gt3r/transect_id coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_mean_ht_WGS84: | Array of 32 bit Reals [gt3r_transect_time = 0..2934] _FillValue: 3.402823466e+38 long_name: Transect mean height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean geodetic height of the transect with respect to the WGS84 ellipsoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_WGS84 fullnamepath: /gt3r/transect_mean_ht_WGS84 coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_inland_water_body_type: | Array of 16 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 127 long_name: Body type units: 1 source: Section 5.4 valid_min: 1 valid_max: 9 contentType: referenceInformation description: Type of Inland Water Body, where 1=Lake, 2=Known Reservoir, 3=(Reserved for future use), 4=Ephemeral Water, 5=River, 6=Estuary or Bay, 7=Coastal Water, 8=Reserved, 9=Reserved flag_meanings: Lake Known_Reservoir Reserved_for_future_use Ephemeral_Water River Estuary_or_Bay Coastal_Water Reserved Reserved flag_values: 1, 2, 3, 4, 5, 6, 7, 8, 9 origname: inland_water_body_type fullnamepath: /gt3r/inland_water_body_type coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_inland_water_body_id: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] units: 1 source: Section 5.4 contentType: referenceInformation description: Identifying signature of an individual inland water body. Each body of water is represented by a unique numeric value. _FillValue: 2147483647 long_name: Body ID origname: inland_water_body_id fullnamepath: /gt3r/inland_water_body_id coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_lseg2_cnt: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 2147483647 long_name: Very long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete very long segments in the transect. origname: transect_lseg2_cnt fullnamepath: /gt3r/transect_lseg2_cnt coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_lat: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] long_name: Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: modelResult description: Reporting latitude of transect statistics. origname: transect_lat fullnamepath: /gt3r/transect_lat coordinates: gt3r_transect_time |
| gt3r_transect_mean_stdev_water_surf: | Array of 32 bit Reals [gt3r_transect_time = 0..2934] _FillValue: 3.402823466e+38 long_name: Surface StDev units: meters source: Section 5.4 contentType: referenceInformation description: Mean standard deviation of the transect water surface, determined based on filtered short segments. (Deferred for rivers; populated with invalid values in rel003) origname: transect_mean_stdev_water_surf fullnamepath: /gt3r/transect_mean_stdev_water_surf coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_end_lat: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] long_name: End Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Latitude of the transect end, determined by the latitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lat fullnamepath: /gt3r/transect_end_lat coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_lseg_cnt: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 2147483647 long_name: Long segment count units: 1 source: Section 5.4 contentType: referenceInformation description: Number of complete long segments in the transect. origname: transect_lseg_cnt fullnamepath: /gt3r/transect_lseg_cnt coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_lon: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] long_name: Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: modelResult description: Reporting longitude of transect statistics. origname: transect_lon fullnamepath: /gt3r/transect_lon coordinates: gt3r_transect_time |
| gt3r_inland_water_body_region: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 2147483647 long_name: Body region units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13-created shapefile representing relevant bodies of water over which to implement the ATL13 water surface finding algorithm only within a region of processing interest. origname: inland_water_body_region fullnamepath: /gt3r/inland_water_body_region coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_mean_lat: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] _FillValue: 1.7976931348623157e+308 long_name: Mean Latitude standard_name: latitude units: degrees_north source: Section 5.4 valid_min: -90.000000000000000 valid_max: 90.000000000000000 contentType: referenceInformation description: Mean latitude of the transect, calculated as mean of all filtered sseg latitudes in the transect. origname: transect_mean_lat fullnamepath: /gt3r/transect_mean_lat coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_length: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] _FillValue: 1.7976931348623157e+308 long_name: Transect length units: meters source: Section 5.4 contentType: referenceInformation description: Length of the transect, determined as the distance from the first filtered observed reference photon in the water body to the final filtered observed photon in the body. origname: transect_length fullnamepath: /gt3r/transect_length coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_atl13_gran_ndx: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] units: 1 source: Section 5.4 contentType: referenceInformation description: ATL13 granule index, indicating from which ATL13 granule in /METADATA/Lineage/ATL13/fileName an ATL22 transect product was derived. _FillValue: 2147483647 long_name: Granule Index origname: atl13_gran_ndx fullnamepath: /gt3r/atl13_gran_ndx coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_sseg_cnt_filtered: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of filtered ATL13 non-anomalous short segments in the transect used in ATL22 mean product calculations. origname: transect_sseg_cnt_filtered fullnamepath: /gt3r/transect_sseg_cnt_filtered coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_start_sseg_idx: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 2147483647 long_name: Index of first entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of first entry in ATL13 short segment rate output data contributing to transect summary origname: transect_start_sseg_idx fullnamepath: /gt3r/transect_start_sseg_idx coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_end_lon: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] long_name: End Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect end, determined by the longitude of the last photon in the last filtered short segment in the transect. origname: transect_end_lon fullnamepath: /gt3r/transect_end_lon coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_start_lon: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] long_name: Start Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Longitude of the transect start, determined by the longitude of the first photon in the first filtered short segment in the transect. origname: transect_start_lon fullnamepath: /gt3r/transect_start_lon coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_mean_subsurf_atten: | Array of 32 bit Reals [gt3r_transect_time = 0..2934] _FillValue: 3.402823466e+38 long_name: Subsurface Attenuation units: m^-1 source: Section 5.4 contentType: referenceInformation description: Mean subsurface attenuation (alpha) of the transect, determined as the mean of all filtered alphas along the transect. origname: transect_mean_subsurf_atten fullnamepath: /gt3r/transect_mean_subsurf_atten coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_mean_lon: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] long_name: Mean Longitude standard_name: longitude units: degrees_east source: Section 5.4 valid_min: -180.00000000000000 valid_max: 180.00000000000000 contentType: referenceInformation description: Mean longitude of the transect, calculated as mean of all filtered sseg longitudes in the transect. origname: transect_mean_lon fullnamepath: /gt3r/transect_mean_lon coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_mean_ht_ortho: | Array of 32 bit Reals [gt3r_transect_time = 0..2934] _FillValue: 3.402823466e+38 long_name: Transect mean orthometric height units: meters source: Section 5.4 contentType: physicalMeasurement description: Mean orthometric height of the transect with respect to the EGM2008 geoid, determined as the mean of all filtered short segment height values in the transect. origname: transect_mean_ht_ortho fullnamepath: /gt3r/transect_mean_ht_ortho coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_mean_time_utc: | Array of Strings [gt3r_transect_time = 0..2934] long_name: Mean UTC Time (CCSDS-A) standard_name: time units: 1 source: Derived contentType: auxiliaryInformation description: Mean time of the transect in UTC format YYYY-MM-DDTHH:MM:SS.SSSSSSZ. origname: transect_mean_time_utc fullnamepath: /gt3r/transect_mean_time_utc coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_end_sseg_idx: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 2147483647 long_name: Index of final entry units: 1 source: Section 5.4 contentType: referenceInformation description: Index of final entry in ATL13 short segment rate output data contributing to transect summary. origname: transect_end_sseg_idx fullnamepath: /gt3r/transect_end_sseg_idx coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_end_time: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect end, determined by the time of the index photon in the last filtered short segment in the transect. _FillValue: 1.7976931348623157e+308 long_name: Transect end time origname: transect_end_time fullnamepath: /gt3r/transect_end_time coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_sseg_cnt: | Array of 32 bit Integers [gt3r_transect_time = 0..2934] _FillValue: 2147483647 long_name: Short segment count units: 1 source: Section 5.2.3 contentType: referenceInformation description: Number of available ATL13 non-anomalous short segments in the transect. origname: transect_sseg_cnt fullnamepath: /gt3r/transect_sseg_cnt coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt3r_transect_start_time: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] _FillValue: 1.7976931348623157e+308 long_name: Transect start time standard_name: time units: seconds since 2018-01-01 source: Section 5.4 contentType: referenceInformation description: Time of the transect start, determined by the time of the index photon in the first filtered short segment in the transect. origname: transect_start_time fullnamepath: /gt3r/transect_start_time coordinates: gt3r_transect_time gt3r_transect_lat gt3r_transect_lon |
| gt1l_transect_time: | Array of 64 bit Reals [gt1l_transect_time = 0..2390] long_name: Delta Time standard_name: time units: seconds since 2018-01-01 source: Derived contentType: referenceInformation description: Reporting time of transect statistics. coordinates: transect_lat transect_lon origname: transect_time fullnamepath: /gt1l/transect_time |
| gt1r_transect_time: | Array of 64 bit Reals [gt1r_transect_time = 0..2799] long_name: Delta Time standard_name: time units: seconds since 2018-01-01 source: Derived contentType: referenceInformation description: Reporting time of transect statistics. coordinates: transect_lat transect_lon origname: transect_time fullnamepath: /gt1r/transect_time |
| gt2l_transect_time: | Array of 64 bit Reals [gt2l_transect_time = 0..2694] long_name: Delta Time standard_name: time units: seconds since 2018-01-01 source: Derived contentType: referenceInformation description: Reporting time of transect statistics. coordinates: transect_lat transect_lon origname: transect_time fullnamepath: /gt2l/transect_time |
| gt2r_transect_time: | Array of 64 bit Reals [gt2r_transect_time = 0..2993] long_name: Delta Time standard_name: time units: seconds since 2018-01-01 source: Derived contentType: referenceInformation description: Reporting time of transect statistics. coordinates: transect_lat transect_lon origname: transect_time fullnamepath: /gt2r/transect_time |
| gt3l_transect_time: | Array of 64 bit Reals [gt3l_transect_time = 0..2563] long_name: Delta Time standard_name: time units: seconds since 2018-01-01 source: Derived contentType: referenceInformation description: Reporting time of transect statistics. coordinates: transect_lat transect_lon origname: transect_time fullnamepath: /gt3l/transect_time |
| gt3r_transect_time: | Array of 64 bit Reals [gt3r_transect_time = 0..2934] long_name: Delta Time standard_name: time units: seconds since 2018-01-01 source: Derived contentType: referenceInformation description: Reporting time of transect statistics. coordinates: transect_lat transect_lon origname: transect_time fullnamepath: /gt3r/transect_time |
| orbit_info_crossing_time: | Array of 64 bit Reals [orbit_info_crossing_time = 0..15] long_name: Ascending Node Crossing Time standard_name: time units: seconds since 2018-01-01 source: POD/PPD 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. origname: crossing_time fullnamepath: /orbit_info/crossing_time |
| orbit_info_sc_orient_time: | Array of 64 bit Reals [orbit_info_sc_orient_time = 0..0] long_name: Time of Last Spacecraft Orientation Change standard_name: time units: seconds since 2018-01-01 source: POD/PPD 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. origname: sc_orient_time fullnamepath: /orbit_info/sc_orient_time |
| FakeDim0: | Array of 32 bit Integers [FakeDim0 = 0..0] units: level |