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Metadata Updated: December 7, 2023

The GPM Ground Validation Autonomous Parsivel Unit (APU) IFloodS dataset collected data from several sites in eastern Iowa during the spring of 2013. The APU dataset for the Iowa Flood Studies (IFloodS) Field Experiment provides precipitation data including precipitation drop size, counts, and distribution. The goals of the campaign were to collect detailed measurements of precipitation at the Earth's surface using ground instruments and advanced weather radars and, simultaneously, collect data from satellites passing overhead. The APU 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.

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 C1979658622-GHRC_DAAC
Data First Published 2014-02-04
Language en-US
Data Last Modified 2022-05-09
Category IFloodS, 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.2014. GPM GROUND VALIDATION AUTONOMOUS PARSIVEL UNIT (APU) IFLOODS indicate subset used. Dataset available online from the NASA Global Hydrometeorology Resource Center DAAC, Huntsville, Alabama, U.S.A. DOI:
Harvest Object Id a08dd95c-2437-4a01-a7ee-e0690a9bc5b0
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -92.4637 41.6406 -91.5416 42.2388
Program Code 026:001
Source Datajson Identifier True
Source Hash e54789638465a5fb852291b167d3b7179d6e9ce34427da3a5fba044b5fa8b735
Source Schema Version 1.1
Temporal 2013-03-16T12:48:00Z/2013-06-17T19:12:00Z

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