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TRMM Precipitation Radar Surface Cross-Section L2 1.5 hours V7 (TRMM_2A21) at GES DISC

Metadata Updated: December 7, 2023

The new version of these data is in GPM-like format (consistent with the GPM Dual-frequency Radar data format), and can be found under the name GPM_2APR.

This is the sigma zero algorithm, which inputs the PR power (1B21) and computes estimates of the path attenuation and its reliability by using the surface as a reference target. It also computes the spatial and temporal statistics of the surface scattering cross section and classifies the cross sections into land/ocean and rain/no rain categories. Changes in horizontal resolution resulting from the TRMM boost that occurred on 24 August 2001:

Pre-Boost (before 7 August 2001): Temporal Resolution: 91.5 min/orbit ~ 16 orbits/day; Swath Width: 215 km; Horizontal Resolution: 4.3 km

Post-Boost (after 24 August 2001): Temporal Resolution: 92.5 min/orbit ~ 16 orbits/day; Swath Width: 247 km; Horizontal Resolution: 5.0 km

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

Dates

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

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Graphic Preview

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 7, 2023
Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
Maintainer
Identifier C1282060544-GES_DISC
Data First Published 2011-07-01
Language en-US
Data Last Modified 2016-04-20
Category TRMM, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version 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). 2011-07-01. TRMM_2A21. TRMM Precipitation Radar Surface Cross-Section L2 1.5 hours 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_2A21_7.html.
Creator Tropical Rainfall Measuring Mission (TRMM)
Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/TRMM_2A21_7.png
Harvest Object Id 09217eee-13c2-4ecb-bc59-2c13cf5019c8
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://cmr.earthdata.nasa.gov:443/search/concepts/C1282060544-GES_DISC.html
Metadata Type geospatial
Old Spatial -180.0 -38.0 180.0 38.0
Program Code 026:001
Release Place Greenbelt, MD
Series Name TRMM_2A21
Source Datajson Identifier True
Source Hash 743ae4a35c43a5b05cd7ce652256634abc566732854775158393e110909e8431
Source Schema Version 1.1
Spatial
Temporal 1997-12-31T00:00:00Z/2014-10-07T23:59:59.999Z

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