GES DISC DAAC (GSFC DAAC)

TRMM Gridded Data Products

Each link under Readme column takes you to a README file for that data product.
Each link under the Data Product takes you to a list of years for that data product.
To preview a Data Product, click its Preview under the Sample Image column. If Preview is not shown, then this Data Product does not have browse images.
To view a listed Data Product, check its box under the Select column. Then you may specify a date range using the pull down menus below the table. When you have finished, click the Start Search button near the bottom of this page.

Note: the sample images below show accumulated rainfall (unit: mm), while the data files contain rain rate (unit: mm/hr).

Data Product	Description	Begin Date	End Date	Number of Items	Average Item Size (KB)	Sample Image	Readme
3A11: Monthly 5° x 5° Oceanic Rainfall	Rain rate, conditional rain rate, rain frequency, and freezing height for a latitude band from 40 degree N to 40 degree S, from TMI	1997-12-01 00:00:00	2008-09-01 00:00:00	129	24	Preview	Readme
3A12: Monthly 0.5° x 0.5° mean 2A12, profile, and surface rainfall	0.5 x 0.5 degree gridded monthly product comprised of mean 2A12 data and calculated vertical hydrometeor profiles as well as mean surface rainfall	1997-12-01 00:00:00	2008-09-01 00:00:00	129	26793		Readme
3A25: Monthly 5°x5° and .5°x.5° Spaceborne Radar Rainfall	Total and conditional rain rate, radar reflectivity, path-integrated attenuation at 2, 4, 6, 10, 15 km for convective and stratiform rain; storm, freezing, and bright band heights, and snow-ice layer depth for a latitude band from 40°N to 40°S, from PR	1997-12-01 00:00:00	2008-09-01 00:00:00	129	38976	Preview	Readme
3A26: Monthly 5° x 5° Surface Rain Total	Rain rate probability distribution at surface, 2 km, and 4 km for a latitude band from 40°N to 40°S, from PR	1997-12-01 00:00:00	2008-09-01 00:00:00	129	5642	Preview	Readme
3B31: Monthly 5° x 5° Combined Rainfall	Rain rate, cloud liquid water, rain water, cloud ice, grauples at 14 levels for a latitude band from 40 degree N to 40 degree S, from PR and TMI	1997-12-01 00:00:00	2008-09-01 00:00:00	129	381	Preview	Readme
3A46: Monthly 1° x 1° SSM/I Rain	Global rain rate from SSM/I	1998-01-01 00:00:00	2008-09-01 00:00:00	128	323		Readme
3B42: 3-Hour 0.25° x 0.25° merged TRMM and other satellite estimates	Calibrated IR merged with TRMM and other satellite data	1997-12-31 22:30:00	2008-08-31 22:30:00	31168	312	Preview	Readme
3B43: Monthly 0.25° x 0.25° merged TRMM and other sources estimates	Merged 3B-42 and rain gauge estimates	1998-01-01 00:00:00	2008-08-01 00:00:00	127	4523	Preview	Readme
CSH: Monthly 0.5° x 0.5° Convective/Stratiform Heating	TRMM Monthly 0.5° x 0.5° Convective/Stratiform Heating	1997-12-01 00:00:00	2008-09-01 00:00:00	129	7928		Readme

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Responsible NASA Official: Steve Kempler
Web Curator: Stephen W Berrick

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