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Metadata Updated: December 7, 2023

The GPM Ground Validation Autonomous Parsivel Unit (APU) NSSTC dataset was collected by the Autonomous Parsivel Unit (APU), which is an optical disdrometer based on single particle extinction that measures particle size and fall velocity. This APU consists of the Parsivel, which was developed by OTT in Germany, and its support systems, which were designed and built by the University of Alabama in Huntsville. This dataset provides rainfall data for the Global Precipitation Measurement (GPM) Mission Ground Validation Experiment collected at the National Space Science Technology Center (NSSTC) in Huntsville, Alabama. The validation effort will entail numerous GPM-specific and joint-agency/international external field campaigns, using state of the art cloud and precipitation observational infrastructure. Surface rainfall will be measured by very dense rain gauge and disdrometer networks at various field campaign sites. There may be occasional gaps in the data when the instrument is not resident at the NSSTC and is sent to participate in field campaigns.

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 December 1, 2022
Metadata Updated Date December 7, 2023

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date December 1, 2022
Metadata Updated Date December 7, 2023
Identifier C1979663924-GHRC_DAAC
Data First Published 2010-10-05
Language en-US
Data Last Modified 2022-05-09
Category GPMGV, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Citation Petersen, Walter A, Ali Tokay, Patrick N Gatlin and Matthew T. Wingo.2010. GPM GROUND VALIDATION AUTONOMOUS PARSIVEL UNIT (APU) NSSTC indicate subset used. Dataset available online from the NASA Global Hydrometeorology Resource Center DAAC, Huntsville, Alabama, U.S.A. DOI:
Harvest Object Id b64c5832-0af1-4de7-94c2-a8eed1ef648d
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -86.64 34.71 -86.63 34.72
Program Code 026:001
Source Datajson Identifier True
Source Hash 7175d5ae983c0053be0bf4d7b9e2cb2e1871d40ff34af2b8eb74dee4b06bcba2
Source Schema Version 1.1
Temporal 2010-06-08T00:00:00Z/2011-03-30T23:59:59Z

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