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Metadata Updated: December 7, 2023

The GPM Ground Validation NASA Autonomous Parsivel Unit (APU) IPHEx dataset was acquired by multiple parsivel instruments during the GPM Integrated Precipitation and Hydrology Experiment (IPHEx), which took place in western North Carolina. IPHEx sought to characterize warm season orographic precipitation regimes, and the relationship between precipitation regimes and hydrologic processes in regions of complex terrain. The APU, an optical disdrometer based on single particle extinction, measures particle size, and fall velocity. ASCII encoded data files contain information on the drop size distribution and integral precipitation parameters such as precipitation rate, reflectivity, and mass-weighted mean diameter.

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 C1979660071-GHRC_DAAC
Data First Published 2015-07-06
Language en-US
Data Last Modified 2022-05-09
Category IPHEx, 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.2015. GPM GROUND VALIDATION AUTONOMOUS PARSIVEL UNIT (APU) IPHEx indicate subset used. Dataset available online from the NASA Global Hydrometeorology Resource Center DAAC, Huntsville, Alabama, U.S.A. DOI:
Harvest Object Id 94136854-a0c8-4d71-bb26-bc7837faad27
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -83.4973 35.0833 -81.8332 36.0144
Program Code 026:001
Source Datajson Identifier True
Source Hash 82efd1e640da3e8d8108e1ec20b944559c7640fc731571199ebc71f1dbd6e7b3
Source Schema Version 1.1
Temporal 2013-10-28T16:25:00Z/2014-06-19T22:49:00Z

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