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Description
TMPA (3B43) dataset have been discontinued as of Dec. 31, 2019, and users are strongly encouraged to shift to the successor IMERG dataset (doi: 10.5067/GPM/IMERG/3B-MONTH/06).
The 3B43 dataset is the monthly version of the 3B42 dataset.
This product was created using TRMM-adjusted merged microwave-infrared precipitation rate (in mm/hr) and root-mean-square (RMS) precipitation-error estimates.
It provides a "best" precipitation estimate in a latitude band covering 50o N to 50o S, an expansion of the TRMM region, from all global data sources, namely high-quality microwave data, infrared data, and analyses of rain gauges. The granule size is one month.
Product Summary
Platforms
TMPA
Instruments
NOT APPLICABLE
Projects
TRMM
Spatial Extent
N: 50S: -50E: 180W: -180
Spatial Resolution
0.25 Decimal Degrees x 0.25 Decimal Degrees
Location
TROPICS
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1998-01-01 to 2019-12-31
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
C1282032631-GES_DISC
Data State
COMPLETE
Number of Files/Granules
264
Processing Level
3
Published
Updated
Science Keywords
Total Surface Precipitation Rate
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.
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Citation Copied
Precipitation Processing System (PPS) at Goddard Space Flight Center. (2018). TRMM (TMPA/3B43) Rainfall Estimate L3 1 month 0.25 degree x 0.25 degree V7 [Dataset]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/TRMM/TMPA/MONTH/7 Date Accessed: 2026-07-18
Precipitation Processing System (PPS) at Goddard Space Flight Center. (2018). TRMM (TMPA/3B43) Rainfall Estimate L3 1 month 0.25 degree x 0.25 degree V7 [Dataset]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/TRMM/TMPA/MONTH/7 Date Accessed: 2026-07-18
Precipitation Processing System (PPS) at Goddard Space Flight Center. “TRMM (TMPA/3B43) Rainfall Estimate L3 1 Month 0.25 Degree x 0.25 Degree V7.” NASA Goddard Earth Sciences Data and Information Services Center, 2018, https://doi.org/10.5067/TRMM/TMPA/MONTH/7. Date Accessed: 2026-07-18