TRMM (TMPA) Rainfall Estimate L3 3 hour 0.25 degree x 0.25 degree V7 (TRMM_3B42)

TMPA (3B42) 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-HH/06).

This dataset was the output from the TMPA (TRMM Multi-satellite Precipitation Analysis) Algorithm. It provides precipitation estimates in the TRMM regions that have the (nearly-zero) bias of the ”TRMM Combined Instrument” precipitation estimate and the dense sampling of high-quality microwave data with fill-in using microwave-calibrated infrared estimates. The granule temporal coverage is 3 hours.

Data and Resources

Additional Info

Field	Value
Maintainer	Earthdata Forum
Last Updated	September 15, 2026, 05:40 (UTC)
Created	April 1, 2025, 19:34 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	44dd0e7e-af9b-4be7-a56e-613e29c6410e
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
identifier	10.5067/TRMM/TMPA/3H/7
license	https://www.usa.gov/government-works
modified	2026-09-07T22:16:04Z
programCode	{026:000}
publisher	NASA/GSFC/SED/ESD/TISL/GESDISC
resource-type	Dataset
source_datajson_identifier	true
source_hash	96086533e8c0ac384e6a37d791ad4389faee25c09d5503eda902f236f0b87e45
source_schema_version	1.1
spatial	["CARTESIAN", [{"WestBoundingCoordinate": -180, "NorthBoundingCoordinate": 50, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -50}]]
temporal	1997-12-31/2019-12-31
theme	{"Earth Science"}