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TRMM Ground Validation Radar Site Rain Type Map L2 1 hour 2 km V7 (TRMM_2A54UW) at GES DISC

Metadata Updated: December 7, 2023

This dataset is part of the University of Washington TRMM Ground Validation products.

Instantaneous convective-stratiform cartesian grid based on baseUW. Values are 0 (no echo), 1 (stratiform), and 2 (convective). Min range is 17 km, max range is 150 km. Note that in the netCDF files, "alt" (altitude) is assigned the elevation angle of the lowest sweep (which is used to create baseUW) and "z_spacing" has no meaning.

A key component of the TRMM project is the Ground Validation (GV) effort which consists of collecting data from ground-based radar, rain gauges and disdrometers. The data is quality-controlled, and then validation products are produced for comparison with TRMM satellite products.

The four primary GV sites are:

  • Darwin, Australia;
  • Houston, Texas;
  • Kwajalein, Republic of the Marshall Islands;
  • Melbourne, Florida.

A significant effort is also being supported at NASA Wallops Flight Facility (WFF) and vicinity to provide high quality, long-term measurements of rain rates (via a network of rain gauges collocated with National Weather Service gauges), as well as drop size distributions (DSD) using a variety of instruments, including impact-type Joss Waldvogel, laser-optical Parsivel, as well as two-dimensional video disdrometers. DSD measurements are also being collected at Melbourne and Kwajalein using Joss-Waldvogel disdrometers.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Created Date November 12, 2020
Metadata Updated Date December 7, 2023

Metadata Source

Harvested from NASA Data.json

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Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 7, 2023
Identifier C1356506693-GES_DISC
Data First Published 2011-07-01
Language en-US
Data Last Modified 2016-05-09
Category TRMM, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Citation Tropical Rainfall Measuring Mission (TRMM). 2007-01-01. TRMM_2A54UW. TRMM Ground Validation Radar Site Rain Type Map L2 1 hour 2 km V7. Greenbelt, MD. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC).
Creator Tropical Rainfall Measuring Mission (TRMM)
Graphic Preview File
Harvest Object Id 5b4b6478-af4a-4cc9-ac8e-d4027906cd17
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -180.0 -40.0 180.0 40.0
Program Code 026:001
Release Place Greenbelt, MD
Series Name TRMM_2A54UW
Source Datajson Identifier True
Source Hash b987774097058f88697c3394a561c3c7edfbbe6bbeeb66b1c97b7f6fd40f72f3
Source Schema Version 1.1
Temporal 1999-01-09T00:00:00Z/2003-12-31T23:59:00Z

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