GPM Ground Validation Autonomous Parsivel Unit (APU) GCPEx
Entry ID: gpmpagcpex

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Abstract: The Autonomous Parsivel Unit (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. The APU dataset for the GPM Cold-season Precipitation Experiment (GCPEx) provides precipitation data including raindrop size and counts, precipitation drop size, rate and amount and snowflake size, counts and distribution. The GCPEx APU data was collected from several sites in Canada during the Winter 2011-2012 period.
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Geographic Coverage
Spatial coordinates   
  N: 44.69   S: 44.17   E: -79.64   W: -79.93

Data Set Citation
Dataset Title: GPM Ground Validation Autonomous Parsivel Unit (APU) GCPEx
Online Resource:
Temporal Coverage
Start Date: 2011-10-26
Stop Date: 2012-03-10
Access Constraints none
Ancillary Keywords
Data Set Progress
Data Center
Global Hydrology Resource Center, Marshall Space Flight Center, NASA Supplemental Info
Data Center URL:
Dataset ID: gpmpagcpex

Data Center Personnel
Phone: 256-961-7932
Fax: 256-961-7859
Email: ghrcdaac at
Contact Address:
GHRC User Services Office
Global Hydrology Resource Center (GHRC)
320 Sparkman Drive
City: Huntsville
Province or State: AL
Postal Code: 35805
Country: USA
Distribution Media: FTP
Distribution Size: 32 Mb
Distribution Format: ASCII
Fees: none
Phone: 757-824-1567
Email: walter.peterson at
Contact Address:
NASA Wallops Flight Facility
City: Wallops Island
Province or State: Virginia
Postal Code: 233375
Country: USA
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Creation and Review Dates
Last DIF Revision Date: 2013-09-09
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