GPM Ground Validation Joss-Waldvogel Disdrometer (JW) NSSTC
Entry ID: gpmjwnsstc

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Summary
Abstract: The Global Precipitation Measurement Ground Validation Experiment is the ground-based component of the GPM mission which also includes satellite data. The GPM mission is to study global rain, snow and ice to better understand our climate, weather, and hydrometeorological processes. The ground instruments include disdrometers and rain gauges. The satellite data will extend TRMM's observations of precipitation to higher latitudes with more frequent sampling. GPM will be capable of measuring rain rates as small as a hundredth of an inch per hour to as large as 4 inches an hour. GPM will be able to estimate the various sizes of precipitation particles, and will also discriminate between snow and rain. GPM will seek to achieve these measurements with a 3-hour average revisit time over 80% of the globe, and the data will be available to users within 3 hours of observation time.

The Joss-Waldvogel (JW) disdrometer is an impact-type electromechanical counter designed to measures the drop size distribution (DSD). This dataset provides rainfall data for the Global Precipitation Measurement( GPM) Mission Ground Validation Experiment collected at the National Space Science Technology Center (NSSTC), Huntsville, AL. 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.

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Temporal Coverage
Start Date: 2010-07-05


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALABAMA > Huntsville


Science Keywords
ATMOSPHERE >PRECIPITATION >DROPLET SIZE    [Definition]
ATMOSPHERE >PRECIPITATION >PRECIPITATION AMOUNT    [Definition]
ATMOSPHERE >PRECIPITATION >PRECIPITATION RATE    [Definition]
ATMOSPHERE >PRECIPITATION >RAIN    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
GROUND-BASED OBSERVATIONS    [Information]


Instrument
DISDROMETERS    [Information]
JW DISDROMETER >Joss-Waldvogel Disdrometer


Project
EOSDIS >Earth Observing System Data Information System    [Information]
ESIP >Earth Science Information Partners Program    [Information]
GPM >Global Precipitation Measurement    [Information]
CWIC >CEOS WGISS Integrated Catalog    [Information]


Access Constraints
none


Keywords
EOSDIS


Data Set Progress
IN WORK


Data Center
Global Hydrology Resource Center, Marshall Space Flight Center, NASA    [Information]
Data Center URL: http://ghrc.nsstc.nasa.gov/
Dataset ID: gpmjwnsstc

Data Center Personnel
Name: GHRC USER SERVICES OFFICE
Phone: 256-961-7932
Fax: 256-961-7859
Email: ghrcdaac at itsc.uah.edu
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
Distribution_Media: FTP
Distribution_Size: 550 Kb/day
Distribution_Format: ascii
Fees: none


Personnel
ALI TOKAY
Role: INVESTIGATOR
Contact Address:
Joint Center for Earth Systems Technology
University of Maryland Baltimore County
City: Greenbelt
Province or State: Maryland
Country: USA


SHERRY HARRISON
Role: DIF AUTHOR
Phone: 256-961-7973
Email: ghrcdaac at itsc.uah.edu
Contact Address:
320 Sparkman Dr.
City: Huntsville
Province or State: AL
Postal Code: 35805
Country: USA


PATRICK GATLIN
Role: TECHNICAL CONTACT
Phone: 256-961-7910
Email: patrick.gatlin at nasa.gov
Contact Address:
Global Hydrology and Climate Center
320 Sparkman Dr
City: Huntsville
Province or State: AL
Postal Code: 35805
Country: USA


WALT A. PETERSEN
Role: INVESTIGATOR
Phone: 256-961-7861
Email: walt.petersen at nasa.gov
Contact Address:
Global Hydrology and Climate Center
NASA Marshall Space Flight Center
320 Sparkman Drive
City: Huntsville
Province or State: AL
Postal Code: 35805
Country: USA



Creation and Review Dates
DIF Creation Date: 2010-10-04
Last DIF Revision Date: 2011-02-07

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