{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "ANDREY SAVTCHENKO", "hasEmail": "mailto:Andrey.Savtchenko@nasa.gov"}, "description": "This dataset is part of the University of Washington TRMM Ground Validation products.\n\nMultiple-level cartesian grid containing output of NCAR SPRINT interpolation of CZ and VR fields of 1C51UW. Horizontal extent is 150x150km and resolution is 2km. Vertical range is 2-15km and resolution is 1km. Unlike other products, 2A55UW is not created for every volume but only for volumes of interest. These are defined as volumes within +/-15 minutes of overpass times and volumes with significant rainfall (areal rainfall rate greater or equal  0.15mm/hr).\n\nA 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.\n\nThe four primary GV sites are:\n\n+ Darwin, Australia; \n+ Houston, Texas; \n+ Kwajalein, Republic of the Marshall Islands;\n+ Melbourne, Florida. \n\nA 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.", "distribution": [{"@type": "dcat:Distribution", "description": "Access the dataset landing page from the GES DISC website.", "downloadURL": "https://disc.gsfc.nasa.gov/datacollection/TRMM_2A55UW_7.html", "format": "HTML", "mediaType": "text/html", "title": "This dataset's landing page"}, {"@type": "dcat:Distribution", "description": "Access the data via HTTPS", "downloadURL": "https://disc2.gesdisc.eosdis.nasa.gov/data/TRMM_GV_L2/TRMM_2A55UW.7", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through a directory map"}, {"@type": "dcat:Distribution", "description": "Use the Earthdata Search to find and retrieve data sets across multiple data centers.", "downloadURL": "https://search.earthdata.nasa.gov/search?q=TRMM_2A55UW", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through Earthdata Search"}, {"@type": "dcat:Distribution", "description": "PMM Project Home Page", "downloadURL": "https://pmm.nasa.gov", "format": "HTML", "mediaType": "text/html", "title": "The dataset's project home page"}, {"@type": "dcat:Distribution", "description": "File specification document", "downloadURL": "https://atmos.washington.edu/gcg/MG/KWAJ/UWproductsOnDAAC.html", "format": "HTML", "mediaType": "text/html", "title": "View the primary investigator's documentation for this dataset"}, {"@type": "dcat:Distribution", "description": "TRMM Field Campaign Project Page", "downloadURL": "https://atmos.washington.edu/gcg/MG/KWAJ/GV.html", "format": "HTML", "mediaType": "text/html", "title": "The dataset's project home page"}, {"@type": "dcat:Distribution", "description": "ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)", "downloadURL": "https://atmos.washington.edu/gcg/MG/KWAJ/NewProductDocumentation010919.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View this dataset's algorithm theoretical basis document"}, {"@type": "dcat:Distribution", "description": "TRMM Data Gaps", "downloadURL": "https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/anomalous.html", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}], "identifier": "C1356506694-GES_DISC", "issued": "2011-07-01", "keyword": ["atmosphere", "earth-science", "precipitation", "radar", "spectral-engineering"], "landingPage": "https://cmr.earthdata.nasa.gov:443/search/concepts/C1356506694-GES_DISC.html", "language": ["en-US"], "modified": "2025-07-17", "programCode": ["026:001"], "publisher": {"@type": "org:Organization", "name": "NASA/GSFC/SED/ESD/GCDC/GESDISC"}, "spatial": "-180.0 -40.0 180.0 40.0", "temporal": "1999-01-09T00:00:00Z/2003-12-31T23:59:00Z", "theme": ["TRMM", "geospatial"], "title": "TRMM Ground Validation Radar Site 3D Reflectivity L2 1 hour V7 (TRMM_2A55UW) at GES DISC"}