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

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.

Data and Resources

Additional Info

Field Value
Maintainer ANDREY SAVTCHENKO
Last Updated February 19, 2025, 12:32 (UTC)
Created February 19, 2025, 12:32 (UTC)
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
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). https://disc.gsfc.nasa.gov/datacollection/TRMM_2A54UW_7.html.
creator Tropical Rainfall Measuring Mission (TRMM)
graphic-preview-file https://disc2.gesdisc.eosdis.nasa.gov/data/TRMM_GV_L2/TRMM_2A54.7/2008/033/2A54_BR.080202.12.KWAJ.7.PNG
harvest_object_id dbe1e6d3-d7dc-426f-b352-ef788f0fd91a
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C1356506693-GES_DISC
issued 2011-07-01
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1356506693-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2016-05-09
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD
resource-type Dataset
series-name TRMM_2A54UW
source_datajson_identifier true
source_hash b987774097058f88697c3394a561c3c7edfbbe6bbeeb66b1c97b7f6fd40f72f3
source_schema_version 1.1
spatial -180.0 -40.0 180.0 40.0
temporal 1999-01-09T00:00:00Z/2003-12-31T23:59:00Z
theme {TRMM,geospatial}