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Description

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 Older versions will no longer be available and have been superseded by Version 07.

The same algorithm has been applied to TRMM observations (December 1997 - April 2015) and these data can be found under product name GPM_2BCMB_TRMM.

This is a precipitation product created from the combination of the Global Precipitation Measurement (GPM) Microwave Imager (GMI) and Dual-frequency Precipitation Radar (DPR) instruments.

The 2BCMB product uses data from the Dual-Frequency Precipitation Radar and GMI, determining the precipitation structure that best fits the combined data from these instruments. It is the Level 2 DPR and GMI Combined precipitation product that contains the data acquired by the GPM instruments in one orbit, or granule. It is written as a two-swath structure. The first swath, NS (normal scan), contains 49 rays per scan that match the KuPR rays. It is calculated from the KuPR and GMI data. The second swath, MS (matched scan), contains 25 rays per scan that match the 25 KaPR rays. It is calculated from the KuPR, KaPR, and GMI data.

Product Summary

Platforms
GPM
Instruments
DPR ,
GMI
Spatial Extent

N: 70 S: -70 E: 180 W: -180

Location
TROPICS
Coordinate System
GEODETIC
Granule Spatial Representation
GEODETIC
Temporal Extent
2014-03-08 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
C2179081553-GES_DISC
Data State
ACTIVE
Number of Files/Granules
67461
Processing Level
2
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 DPR and GMI Combined Precipitation L2B 1.5 hours 5 km V07 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/GPM/DPRGMI/CMB/2B/07 Date Accessed: 2026-03-03

Documents

READ-ME

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)

ANOMALIES

GENERAL DOCUMENTATION

Variables

The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.

For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
AlgorithmRuntimeInfo AlgorithmRuntimeInfo N/A OTHER N/A N/A N/A
KuGMI/airPressure KuGMI/airPressure hPa float32 -9999.900390625 N/A N/A
KuGMI/airTemperature KuGMI/airTemperature K float32 -9999.900390625 N/A N/A
KuGMI/aPriori/initPrecipTotDm KuGMI/aPriori/initPrecipTotDm mm float32 -9999.900390625 N/A N/A
KuGMI/aPriori/initPrecipTotLogNw KuGMI/aPriori/initPrecipTotLogNw log10(m-4) float32 -9999.900390625 N/A N/A
KuGMI/aPriori/profClass KuGMI/aPriori/profClass N/A int32 -9999 N/A N/A
KuGMI/cloudIceWaterCont KuGMI/cloudIceWaterCont g/m^3 float32 -9999.900390625 N/A N/A
KuGMI/cloudLiqWaterCont KuGMI/cloudLiqWaterCont g/m^3 float32 -9999.900390625 N/A N/A
KuGMI/correctedReflectFactor KuGMI/correctedReflectFactor dBZ float32 -9999.900390625 N/A N/A
KuGMI/envParamNode KuGMI/envParamNode N/A int16 -9999 N/A N/A
KuGMI/estimSurfPrecipLiqRate KuGMI/estimSurfPrecipLiqRate mm/hr float32 -9999.900390625 N/A N/A
KuGMI/estimSurfPrecipTotRate KuGMI/estimSurfPrecipTotRate mm/hr float32 -9999.900390625 N/A N/A
KuGMI/estimSurfPrecipTotRateSigma KuGMI/estimSurfPrecipTotRateSigma mm/hr float32 -9999.900390625 N/A N/A
KuGMI/FLG/estimPrecipInClutter KuGMI/FLG/estimPrecipInClutter N/A int16 -9999 N/A N/A
KuGMI/FLG/ioQuality KuGMI/FLG/ioQuality N/A int32 -9999 N/A N/A
KuGMI/FLG/multiScatCalc KuGMI/FLG/multiScatCalc N/A int32 -9999 N/A N/A
KuGMI/FLG/scanPatternFlag KuGMI/FLG/scanPatternFlag N/A int16 -9999 N/A N/A
KuGMI/Input/ellipsoidBinOffset KuGMI/Input/ellipsoidBinOffset m float32 -9999.900390625 N/A N/A
KuGMI/Input/localZenithAngle KuGMI/Input/localZenithAngle degree float32 -9999.900390625 N/A N/A
KuGMI/Input/lowestClutterFreeBin KuGMI/Input/lowestClutterFreeBin N/A int16 -9999 N/A N/A
KuGMI/Input/piaEffective KuGMI/Input/piaEffective dB float32 -9999.900390625 N/A N/A
KuGMI/Input/piaEffectiveReliabFlag KuGMI/Input/piaEffectiveReliabFlag N/A int16 -9999 N/A N/A
KuGMI/Input/piaEffectiveSigma KuGMI/Input/piaEffectiveSigma dB float32 -9999.900390625 N/A N/A
KuGMI/Input/precipitationFlag KuGMI/Input/precipitationFlag N/A int32 -9999 N/A N/A
KuGMI/Input/precipitationType KuGMI/Input/precipitationType N/A int32 -9999 N/A N/A
KuGMI/Input/precipTypeQualityFlag KuGMI/Input/precipTypeQualityFlag N/A int32 -9999 N/A N/A
KuGMI/Input/sigmaZeroMeasured KuGMI/Input/sigmaZeroMeasured dB float32 -9999.900390625 N/A N/A
KuGMI/Input/snowIceCover KuGMI/Input/snowIceCover N/A int32 -9999 N/A N/A
KuGMI/Input/stormTopAltitude KuGMI/Input/stormTopAltitude m float32 -9999.900390625 N/A N/A
KuGMI/Input/stormTopBin KuGMI/Input/stormTopBin N/A int16 -9999 N/A N/A
KuGMI/Input/surfaceElevation KuGMI/Input/surfaceElevation m float32 -9999.900390625 N/A N/A
KuGMI/Input/surfaceRangeBin KuGMI/Input/surfaceRangeBin N/A int16 -9999 N/A N/A
KuGMI/Input/surfaceType KuGMI/Input/surfaceType N/A int32 -9999 N/A N/A
KuGMI/Input/zeroDegAltitude KuGMI/Input/zeroDegAltitude m float32 -9999.900390625 N/A N/A
KuGMI/Input/zeroDegBin KuGMI/Input/zeroDegBin N/A int16 -9999 N/A N/A
KuGMI/Latitude KuGMI/Latitude degrees float32 -9999.900390625 N/A N/A
KuGMI/Longitude KuGMI/Longitude degrees float32 -9999.900390625 N/A N/A
KuGMI/lowestEstimateBin KuGMI/lowestEstimateBin N/A int16 -9999 N/A N/A
KuGMI/lowestUnclutteredBin KuGMI/lowestUnclutteredBin N/A int16 -9999 N/A N/A
KuGMI/multiScatMaxContrib KuGMI/multiScatMaxContrib dB float32 -9999.900390625 N/A N/A
KuGMI/navigation/dprAlt KuGMI/navigation/dprAlt m float32 -9999.900390625 N/A N/A
KuGMI/navigation/greenHourAng KuGMI/navigation/greenHourAng degrees float32 -9999.900390625 N/A N/A
KuGMI/navigation/scAlt KuGMI/navigation/scAlt m float32 -9999.900390625 N/A N/A
KuGMI/navigation/scAttPitchGeoc KuGMI/navigation/scAttPitchGeoc degrees float32 -9999.900390625 N/A N/A
KuGMI/navigation/scAttPitchGeod KuGMI/navigation/scAttPitchGeod degrees float32 -9999.900390625 N/A N/A
KuGMI/navigation/scAttRollGeoc KuGMI/navigation/scAttRollGeoc degrees float32 -9999.900390625 N/A N/A
KuGMI/navigation/scAttRollGeod KuGMI/navigation/scAttRollGeod degrees float32 -9999.900390625 N/A N/A
KuGMI/navigation/scAttYawGeoc KuGMI/navigation/scAttYawGeoc degrees float32 -9999.900390625 N/A N/A
KuGMI/navigation/scAttYawGeod KuGMI/navigation/scAttYawGeod degrees float32 -9999.900390625 N/A N/A
KuGMI/navigation/scHeadingGround KuGMI/navigation/scHeadingGround degrees float32 -9999.900390625 N/A N/A
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