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Description

The TRMM PR product (NSIDC-0807), derived from the Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) instrument, includes Level-3 gridded radar backscatter data collected at 13.88 GHz with vertical transmit–vertical receive (VV) polarization. Data are gridded to the EASE-Grid 2.0 cylindrical projections (Brodzik et al., 2012; Brodzik et al., 2014) at two griddings. Input data for the NSIDC-0807 product are the TRMM PR 2A21 Version-7 files obtained from the NASA EOS-DIS system. The data coverage is global for the period beginning in January 1998 through October 2014—the full mission lifetime. No calibration corrections have been applied to the data.

Version Description

Initial release

Product Summary

Platforms
TRMM
Instruments
NOT APPLICABLE
Spatial Extent

N: 85.0445664 S: -85.0445664 E: 180 W: -180

Spatial Reference System(s)
WGS 84 / NSIDC EASE-Grid 2.0 Global (EPSG:6933)
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1998-01-01 to 2014-10-07
Temporal Resolution
28 Day
Concept ID
C3993465598-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
872
Processing Level
1C
Published
Science Keywords
SIGMA NAUGHT

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

Long, D. G., & Miller, J. Z. (2026). TRMM PR SIR-Enhanced EASE-Grid 2.0 Surface Radar Backscatter, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/WK4DZ1LG4L6O Date Accessed: 2026-03-26

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