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Description

Version 07 is the current version of the data set. Older versions are no longer available and have been superseded by Version 07.

The "CLIM" products differ from their "regular" counterparts (without the "CLIM" in the name) by the ancillary data they use. They are Climate-Reference products, which requires homogeneous ancillary data over the climate time series. Hence, the ECMWF-Interim (European Centre for Medium-Range Weather Forecasts, 2-3 months lag behind the regular production) reanalysis is used as ancillary data to derive surface and atmospheric conditions required by the GPROF algorithm for the "CLIM" output. The GPROF databases are also adjusted accordingly for these climate-referenced retrievals.

3GPROF products provide global gridded monthly/daily precipitation averages from multiple satellites that can be used for climate studies. The 3GPROF products are based on retrievals from high-quality microwave sensors, which are sensitive to liquid and ice-phase precipitation hydrometeors in the atmosphere.

Product Summary

Platforms
NOAA-20
Instruments
ATMS
Spatial Extent

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

Geographic Region
TROPICS
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2017-11-01 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
C2264136034-GES_DISC
Data State
ACTIVE
Number of Files/Granules
94
Processing Level
3
Published
Updated
Science Keywords
Atmospheric Water Vapor ,
Precipitation

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

Precipitation Processing System (PPS) At NASA GSFC. (2022). GPM ATMS on NOAA-20 (GPROF) Climate-based Radiometer Precipitation Profiling L3 1 month 0.25 degree x 0.25 degree V07 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/GPM/ATMS/NOAA20/GPROFCLIM/3A-MONTH/07 Date Accessed: 2025-12-17

Documents

READ-ME

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

ANOMALIES

GENERAL DOCUMENTATION

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
cloudWater cloudWater g/m^3 float32 -9999.900390625 N/A N/A
cloudWaterPath cloudWaterPath kg/m^2 float32 -9999.900390625 N/A N/A
convectivePrecipitation convectivePrecipitation mm/hr float32 -9999.900390625 N/A N/A
FakeDim0 FakeDim0 level int32 N/A N/A N/A
fractionQuality0 fractionQuality0 N/A float32 -9999.900390625 N/A N/A
fractionQuality1 fractionQuality1 N/A float32 -9999.900390625 N/A N/A
fractionQuality2 fractionQuality2 N/A float32 -9999.900390625 N/A N/A
fractionQuality3 fractionQuality3 N/A float32 -9999.900390625 N/A N/A
frozenPrecipitation frozenPrecipitation mm/hr float32 -9999.900390625 N/A N/A
graupel graupel g/m^3 float32 -9999.900390625 N/A N/A
iceWaterPath iceWaterPath kg/m^2 float32 -9999.900390625 N/A N/A
InputAlgorithmVersions InputAlgorithmVersions N/A string N/A N/A N/A
InputFileNames InputFileNames N/A string N/A N/A N/A
InputGenerationDateTimes InputGenerationDateTimes N/A string N/A N/A N/A
lat lat degrees_north float32 N/A N/A N/A
latentHeating latentHeating K/hr float32 -9999.900390625 N/A N/A
latv latv N/A int32 N/A N/A N/A
lat_bnds lat_bnds degrees_north float32 N/A N/A N/A
layer layer kilometers float32 N/A N/A N/A
layerv layerv N/A int32 N/A N/A N/A
layer_bnds layer_bnds kilometers float32 N/A N/A N/A
lon lon degrees_east float32 N/A N/A N/A
lonv lonv N/A int32 N/A N/A N/A
lon_bnds lon_bnds degrees_east float32 N/A N/A N/A
npixPrecipitation npixPrecipitation N/A int32 -9999 N/A N/A
npixTotal npixTotal N/A int32 -9999 N/A N/A
rainWater rainWater g/m^3 float32 -9999.900390625 N/A N/A
rainWaterPath rainWaterPath kg/m^2 float32 -9999.900390625 N/A N/A
snow snow g/m^3 float32 -9999.900390625 N/A N/A
surfacePrecipitation surfacePrecipitation mm/hr float32 -9999.900390625 N/A N/A
surfaceTypeIndex surfaceTypeIndex N/A int32 -9999 N/A N/A
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