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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 Older versions are no longer available and have been superseded by the current version.

GMI is a multi-channel, conical- scanning, microwave radiometer.
The BASEGPMGMI product contains unaltered data directly from the Global Microwave Imager (GMI) aboard the GPM core satellite. It is the standard GMI calibration product with full precision of all physical fields. It contains one full orbit with no overlaps to other orbits in the production, although up to 200 overlap scans may be used for multi-scan calibration in the process.

If there is enough bandwidth, the entire circle of GMI samples will be sent down. The BASEGPMGMI product's swaths 4 and 5 contain all of the samples that are sent down. Later products only use the subset of these data that contains the Earth view, hot load, and cold sky samples.

Product Summary

Platforms
GPM
Instruments
GMI
Spatial Extent

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

Geographic Region
TROPICS
Coordinate System
GEODETIC
Granule Spatial Representation
GEODETIC
Temporal Extent
2014-03-04 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
C2259345423-GES_DISC
Data State
ACTIVE
Number of Files/Granules
66588
Processing Level
1
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 GMI Antenna Temperatures L1BASE 1.5 hours 13 km V07 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/GPM/GMI/BASE/07 Date Accessed: 2025-12-14

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
S1/cal2/BATC_CALRES_1 S1/cal2/BATC_CALRES_1 count uint16 0 N/A N/A
S1/cal2/BATC_CALRES_2 S1/cal2/BATC_CALRES_2 count uint16 0 N/A N/A
S1/cal2/CSR_TEMP1 S1/cal2/CSR_TEMP1 K float32 -9999.900390625 N/A N/A
S1/cal2/CSR_TEMP2 S1/cal2/CSR_TEMP2 K float32 -9999.900390625 N/A N/A
S1/cal2/hotLoadThermisterTemp S1/cal2/hotLoadThermisterTemp K float32 -9999.900390625 N/A N/A
S1/cal2/moonIndex S1/cal2/moonIndex N/A uint16 0 N/A N/A
S1/cal2/MR_ICA_TEMP S1/cal2/MR_ICA_TEMP K float32 -9999.900390625 N/A N/A
S1/cal2/MR_LR_LEFT_TEMP S1/cal2/MR_LR_LEFT_TEMP K float32 -9999.900390625 N/A N/A
S1/cal2/MR_LR_LOWR_TEMP S1/cal2/MR_LR_LOWR_TEMP K float32 -9999.900390625 N/A N/A
S1/cal2/MR_LR_RGHT_TEMP S1/cal2/MR_LR_RGHT_TEMP K float32 -9999.900390625 N/A N/A
S1/cal2/NDIODE10GHZNUM S1/cal2/NDIODE10GHZNUM count uint16 65535 N/A N/A
S1/cal2/NDIODE_MODE S1/cal2/NDIODE_MODE count uint16 65535 N/A N/A
S1/cal2/noiseDiodeTemp S1/cal2/noiseDiodeTemp K float32 -9999.900390625 N/A N/A
S1/cal2/onOrbitDiodeExcessTemp S1/cal2/onOrbitDiodeExcessTemp K float32 -9999.900390625 N/A N/A
S1/cal2/RSST_NDIODE_ST S1/cal2/RSST_NDIODE_ST count uint16 65535 N/A N/A
S1/cal2/RS_CALRES_1 S1/cal2/RS_CALRES_1 count uint16 0 N/A N/A
S1/cal2/RS_CALRES_2 S1/cal2/RS_CALRES_2 count uint16 0 N/A N/A
S1/cal2/TEMP_89GHZ_LO S1/cal2/TEMP_89GHZ_LO K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_166GHZ_LO S1/cal2/TEMP_166GHZ_LO K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_183GHZMXR S1/cal2/TEMP_183GHZMXR K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_183GHZ_LO S1/cal2/TEMP_183GHZ_LO K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_CALRES_1 S1/cal2/TEMP_CALRES_1 count uint16 0 N/A N/A
S1/cal2/TEMP_CALRES_2 S1/cal2/TEMP_CALRES_2 count uint16 0 N/A N/A
S1/cal2/TEMP_CALRES_4 S1/cal2/TEMP_CALRES_4 count uint16 0 N/A N/A
S1/cal2/TEMP_CALRES_5 S1/cal2/TEMP_CALRES_5 count uint16 0 N/A N/A
S1/cal2/TEMP_CALRES_6 S1/cal2/TEMP_CALRES_6 count uint16 0 N/A N/A
S1/cal2/TEMP_H89GHZMXR S1/cal2/TEMP_H89GHZMXR K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_H166GHZMXR S1/cal2/TEMP_H166GHZMXR K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_RS_MR1 S1/cal2/TEMP_RS_MR1 K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_RS_MR2 S1/cal2/TEMP_RS_MR2 K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_V89GHZMXR S1/cal2/TEMP_V89GHZMXR K float32 -9999.900390625 N/A N/A
S1/cal2/TEMP_V166GHZMXR S1/cal2/TEMP_V166GHZMXR K float32 -9999.900390625 N/A N/A
S1/cal2/trayTemperature S1/cal2/trayTemperature K float32 -9999.900390625 N/A N/A
S1/cal2/trayTemperatureCount S1/cal2/trayTemperatureCount count uint16 65535 N/A N/A
S1/cal2/WarmIntrusionToColdViewIndex S1/cal2/WarmIntrusionToColdViewIndex N/A uint16 65535 N/A N/A
S1/calCounts/coldLoadnDiodeReading S1/calCounts/coldLoadnDiodeReading counts uint16 0 N/A N/A
S1/calCounts/coldLoadReading S1/calCounts/coldLoadReading counts uint16 0 N/A N/A
S1/calCounts/hotLoadnDiodeReading S1/calCounts/hotLoadnDiodeReading counts uint16 0 N/A N/A
S1/calCounts/hotLoadReading S1/calCounts/hotLoadReading counts uint16 0 N/A N/A
S1/calCounts/hotLoadThermisterCount S1/calCounts/hotLoadThermisterCount count uint16 65535 N/A N/A
S1/calibration/calibrationQCflag S1/calibration/calibrationQCflag N/A int16 -9999 N/A N/A
S1/calibration/coldSkyTemp S1/calibration/coldSkyTemp K float32 -9999.900390625 N/A N/A
S1/calibration/derivedNonLinearity S1/calibration/derivedNonLinearity K float32 -9999.900390625 N/A N/A
S1/calibration/diodeExcessTemp S1/calibration/diodeExcessTemp K float32 -9999.900390625 N/A N/A
S1/calibration/diodeFlag S1/calibration/diodeFlag N/A int16 -9999 N/A N/A
S1/calibration/gain S1/calibration/gain K float32 -9999.900390625 N/A N/A
S1/calibration/hotLoadTemp S1/calibration/hotLoadTemp K float32 -9999.900390625 N/A N/A
S1/calibration/meanColdSkyCntnDiode S1/calibration/meanColdSkyCntnDiode count float32 -9999.900390625 N/A N/A
S1/calibration/meanColdSkyCount S1/calibration/meanColdSkyCount count float32 -9999.900390625 N/A N/A
S1/calibration/meanHotLoadCntnDiode S1/calibration/meanHotLoadCntnDiode N/A float32 -9999.900390625 N/A N/A
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