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Description

The OMPS-N21 L2 LP Water Vapor (H2O) Vertical Profile swath orbital 3slit collection contains water vapor measured by the Ozone Mapping and Profiling Suite (OMPS) Limb-Profiler (LP) sensor on the NOAA-21 satellite. This OMPS LP H2O product measures stratospheric and upper tropospheric water vapor profiles via neural network models trained on co-located Aura Microwave Limb Sounder (MLS) water vapor profiles.

Each granule contains data from the daylit portion of a single orbit. Spatial coverage is global (-90 to 90 degrees latitude), and there are about 14.5 orbits per day. The profiles are retrieved from 11.5 to 40.5 km at 1 km intervals with a vertical resolution of approximately 1.8 km.

The data are written using the Hierarchical Data Format Version 5 or HDF5.

Product Summary

Platforms
NOAA-21
Instruments
OMPS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL ,
STRATOSPHERE ,
Troposphere
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2022-11-10 to Present
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C3803758791-GES_DISC
Data State
ACTIVE
Number of Files/Granules
14956
Processing Level
2
Published
Updated
Science Keywords
Water Vapor

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Himes, M. D. (2025). OMPS-N21 LP L2 Water Vapor Extinction Vertical Profile swath orbital 3slit [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/XNK38X2VQGZ0 Date Accessed: 2026-01-28

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