TRMM Ground Validation Radar Reflectivity Single Level Cartesian Grid 1 hour V7 (TRMM_baseUW) at GES DISC

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

Data contains single level, cartesian grids containing output of NCAR SPRINT interpolation of lowest sweep of 1C51UW. Horizontal extent is 150x150km and horizontal resolution is 2km. Note that in the netCDF files, "alt" (altitude) is assigned the elevation angle of the lowest sweep (which is used to create this product) 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 March 31, 2025, 22:30 (UTC)
Created March 31, 2025, 22:30 (UTC)
Identifier C1356506691-GES_DISC
Issued 2011-07-01
Language {en-US}
Modified 2016-05-09
Theme {TRMM,geospatial}
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_baseUW. TRMM Ground Validation Radar Reflectivity Single Level Cartesian Grid 1 hour 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_baseUW_7.html.
creator Tropical Rainfall Measuring Mission (TRMM)
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/TRMM_baseUW_7.png
harvest_object_id 1c833fe3-c927-469a-9622-0a4c05788d5f
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1356506691-GES_DISC.html
metadata_type geospatial
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD
resource-type Dataset
series-name TRMM_baseUW
source_datajson_identifier true
source_hash c4244ad078ebd806992fa24490fd2437fe8314481ce805c3b0949ab200ee4d37
source_schema_version 1.1
spatial -180.0 -40.0 180.0 40.0
temporal 1999-01-09T00:00:00Z/2003-12-31T23:59:59.999Z