| ncei_template_version: | NCEI_NetCDF_Swath_Template_v2.0 |
| summary: | The Earth Surface Mineral Dust Source Investigation (EMIT) is an Earth Ventures-Instrument (EVI-4) Mission that maps the surface mineralogy of arid dust source regions via imaging spectroscopy in the visible and short-wave infrared (VSWIR). Installed on the International Space Station (ISS), the EMIT instrument is a Dyson imaging spectrometer that uses contiguous spectroscopic measurements from 410 to 2450 nm to resolve absoprtion features of iron oxides, clays, sulfates, carbonates, and other dust-forming minerals. During its one-year mission, EMIT will observe the sunlit Earth's dust source regions that occur within +/-52° latitude and produce maps of the source regions that can be used to improve forecasts of the role of mineral dust in the radiative forcing (warming or cooling) of the atmosphere.\n\nThis file contains masks for L2A estimated clouds and cloud shadow masks and geolocation data. Geolocation data (latitude, longitude, height) and a lookup table to project the data are also included. |
| keywords: | Imaging Spectroscopy, minerals, EMIT, dust, radiative forcing |
| Conventions: | CF-1.63 |
| sensor: | EMIT (Earth Surface Mineral Dust Source Investigation) |
| instrument: | EMIT |
| platform: | ISS |
| institution: | NASA Jet Propulsion Laboratory/California Institute of Technology |
| license: | https://www.earthdata.nasa.gov/engage/open-data-services-software-policies/data-use-guidance |
| naming_authority: | LPDAAC |
| date_created: | 2026-01-14T06:48:22Z |
| keywords_vocabulary: | NASA Global Change Master Directory (GCMD) Science Keywords |
| stdname_vocabulary: | NetCDF Climate and Forecast (CF) Metadata Convention |
| creator_name: | Jet Propulsion Laboratory/California Institute of Technology |
| creator_url: | https://earth.jpl.nasa.gov/emit/ |
| project: | Earth Surface Mineral Dust Source Investigation |
| project_url: | https://earth.jpl.nasa.gov/emit/ |
| publisher_name: | NASA LPDAAC |
| publisher_url: | https://lpdaac.usgs.gov |
| publisher_email: | lpdaac@usgs.gov |
| identifier_product_doi_authority: | https://doi.org |
| flight_line: | emit20260113t202756_o01313_s000 |
| time_coverage_start: | 2026-01-13T20:27:56+0000 |
| time_coverage_end: | 2026-01-13T20:28:08+0000 |
| software_build_version: | 010632 |
| software_delivery_version: | 010632 |
| product_version: | V002 |
| history: | PGE Run Command: {python /store/emit/ops/repos/emit-sds-masks/make_emit_masks.py /store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l1b/emit20260113t202756_o01313_s000_l1b_rdn_b0106_v01.img /store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l1b/emit20260113t202756_o01313_s000_l1b_loc_b0106_v01.img /store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l1b/emit20260113t202756_o01313_s000_l1b_obs_b0106_v01.img /store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l2a/emit20260113t202756_o01313_s000_l2a_atm_b0106_v01.img /store/scratch/emit/ops/tmp/emit20260113t202756_emit.L2AMaskTf_20260114t013007/output/emit20260113t202756_o01313_s000_l2a_mask_b0106_v02_prob.tif /store/emit/ops/repos/emit-sds-masks/data/kurudz_0.1nm.dat /store/scratch/emit/ops/tmp/emit20260113t202756_emit.L2AMaskTf_20260114t013007/output/emit20260113t202756_o01313_s000_l2a_mask_b0106_v02.img --n_cores 64}, PGE Input Files: {radiance_file=/store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l1b/emit20260113t202756_o01313_s000_l1b_rdn_b0106_v01.img, observation_parameters_file=/store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l1b/emit20260113t202756_o01313_s000_l1b_obs_b0106_v01.img, pixel_locations_file=/store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l1b/emit20260113t202756_o01313_s000_l1b_loc_b0106_v01.img, geolocation_table_file=/store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l1b/emit20260113t202756_o01313_s000_l1b_glt_b0106_v01.img, atmosphere_file=/store/emit/ops/data/acquisitions/20260113/emit20260113t202756/l2a/emit20260113t202756_o01313_s000_l2a_atm_b0106_v01.img, solar_irradiance_file=/store/emit/ops/repos/emit-sds-masks/data/kurudz_0.1nm.dat} |
| crosstrack_orientation: | as seen on ground |
| easternmost_longitude: | -80.771774652429471 |
| northernmost_latitude: | -5.0457973551031703 |
| westernmost_longitude: | -81.796594115714001 |
| southernmost_latitude: | -6.0711590509079603 |
| spatialResolution: | 0.00054223252025636698 |
| spatial_ref: | GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AXIS["Latitude",NORTH],AXIS["Longitude",EAST],AUTHORITY["EPSG","4326"]] |
| geotransform: | -81.796594115714001, 0.00054223252025636698, -0.0000000000000000, -5.0457973551031703, -0.0000000000000000, -0.00054223252025636698 |
| day_night_flag: | Day |
| title: | EMIT L2A Masks 60 m V002 |
| sensor_band_parameters_mask_bands: | Array of Strings [bands = 0..10] long_name: Mask Band Names origname: mask_bands fullnamepath: /sensor_band_parameters/mask_bands |
| location_elev: | Array of 64 bit Reals [downtrack = 0..1279][crosstrack = 0..1241] _FillValue: -9999.0000000000000 long_name: Surface Elevation units: m origname: elev fullnamepath: /location/elev coordinates: location_lat location_lon |
| location_glt_x: | Array of 32 bit Integers [ortho_y = 0..1890][ortho_x = 0..1889] _FillValue: 0 long_name: GLT Sample Lookup units: pixel location origname: glt_x fullnamepath: /location/glt_x |
| location_glt_y: | Array of 32 bit Integers [ortho_y = 0..1890][ortho_x = 0..1889] _FillValue: 0 long_name: GLT Line Lookup units: pixel location origname: glt_y fullnamepath: /location/glt_y |
| mask: | Array of 32 bit Reals [downtrack = 0..1279][crosstrack = 0..1241][bands = 0..10] _FillValue: -9999.000000 long_name: Masks units: unitless origname: mask fullnamepath: /mask coordinates: location_lat location_lon bands |
| bands: | Array of 32 bit Reals [bands = 0..10] |
| ortho_x: | Array of 32 bit Reals [ortho_x = 0..1889] |
| ortho_y: | Array of 32 bit Reals [ortho_y = 0..1890] |
| location_lat: | Array of 64 bit Reals [downtrack = 0..1279][crosstrack = 0..1241] _FillValue: -9999.0000000000000 long_name: Latitude (WGS-84) origname: lat fullnamepath: /location/lat units: degrees_north |
| location_lon: | Array of 64 bit Reals [downtrack = 0..1279][crosstrack = 0..1241] _FillValue: -9999.0000000000000 long_name: Longitude (WGS-84) origname: lon fullnamepath: /location/lon units: degrees_east |