High Resolution Altitude Corrected Precipitation based on TMPA and other sources L4 Monthly 1 km x 1 km V1 (HRAC_Precip) at GES DISC

This is a dataset that enhances the TMPA monthly product (3B43) in its accuracy and spatial resolution, in hydrometeorological applications. About 9,200 gauge measurement are used to compare with the 3B43 product at 0.25° x 0.25° spatial resolution across the CONUS. Observed is a strong relationship between the bias and land surface elevation, in which 3B43 underestimates the true precipitation at the elevations above 1,500 m amsl. Satellite data is resampled to elevation data at ~1km grid size and applied a correction function to reduce bias in the data. Accordingly, a High-Resolution Altitude-Corrected product is constructed, based on 3B43 and covering the entire CONUS at 1-km resolution. This product is verified against 9,200 gauges across the country. The results showed a substantial improvement in the satellite-gauge data accuracy as well as spatial resolution.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 6, 2026, 20:06 (UTC)
Created April 1, 2025, 16:37 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id c4ab2c9e-705a-4b38-a2d7-90120de4a0b1
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/8115OXI2F5SB
license https://www.usa.gov/government-works
modified 2026-03-30T22:16:00Z
programCode {026:000}
publisher NASA/GSFC/SED/ESD/TISL/GESDISC
resource-type Dataset
source_datajson_identifier true
source_hash d23cb473154bf9ccb3a0ec06788b93e2b80349174cf345af9c9513376f779002
source_schema_version 1.1
spatial ["CARTESIAN",[{"WestBoundingCoordinate":-125,"NorthBoundingCoordinate":49.7,"EastBoundingCoordinate":-67,"SouthBoundingCoordinate":24}]]
temporal 1998-01-01/2014-12-31
theme {"Earth Science"}