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TROPESS CrIS-SNPP L2 Ammonia for Forward Stream, Standard Product V1 (TRPSDL2NH3CRSFS) at GES DISC

Published by NASA/GSFC/SED/ESD/TISL/GESDISC | National Aeronautics and Space Administration | Catalog Last Checked: May 06, 2026 at 06:02 PM | Dataset Last Updated: April 21, 2026
The TROPESS CrIS-SNPP L2 Ammonia for Forward Stream, Standard Product contains the vertical distribution of the retrieved atmospheric state of ammonia (NH3), formal uncertainties, and diagnostic information measured by the CrIS instrument on the Suomi-NPP satellite. The forward stream standard product is global for the time period from 2021-02-01 to 2021-05-21, when the CrIS-SNPP processing was discontinued. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES). The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 15 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
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contactPoint 
                                            {
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  "@type": "vcard:Contact",
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}
description The TROPESS CrIS-SNPP L2 Ammonia for Forward Stream, Standard Product contains the vertical distribution of the retrieved atmospheric state of ammonia (NH3), formal uncertainties, and diagnostic information measured by the CrIS instrument on the Suomi-NPP satellite. The forward stream standard product is global for the time period from 2021-02-01 to 2021-05-21, when the CrIS-SNPP processing was discontinued. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES). The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 15 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.
distribution 
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identifier 10.5067/B4TF7ND8A3O7
keyword 
                                            [
  "earth-science-atmospheric-chemistry-atmosphere-nitrogen-compounds-ammonia-atmospheric-chemistry"
]
license https://www.usa.gov/government-works
modified 2026-04-21
programCode 
                                            [
  "026:000"
]
publisher 
                                            {
  "name": "NASA/GSFC/SED/ESD/TISL/GESDISC",
  "@type": "org:Organization"
}
spatial 
                                            "["CARTESIAN",[{"WestBoundingCoordinate":-180,"NorthBoundingCoordinate":90,"EastBoundingCoordinate":180,"SouthBoundingCoordinate":-90}]]"
temporal 2021-02-01/2026-04-13
theme 
                                            [
  "Earth Science"
]
title TROPESS CrIS-SNPP L2 Ammonia for Forward Stream, Standard Product V1 (TRPSDL2NH3CRSFS) at GES DISC

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