Disdrometers: GPM Precipitation Science Research Facility
Disdrometer Data
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The GPM Precipitation Research Facility (PRF) has deployed a number of gauge networks
for studying the spatial temporal variation of precipitation, and to provide
validation to radar and disdrometer precipitation rate estimates.
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DROP Inventory
PARSIVEL Sensor Status |
APU Rain Intensities |
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Precipitation Imaging Processor (PIP)
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The Precipitation Imaging
Processor (PIP) is an instrument designed by Dr. Larry
Bliven at NASA Wallops Flight Facility. Its high-frame-rate records of grey-scale
images is able to determine both particle size and fall-speed measurements in
both rain and snow. The current model has a frame rate of nearly 400 Hz over a
640 x 480 pixel window. Current efforts are underway to increase the rate to
1000 Hz at 1080p HD resolution (1920 x 1080 pixels).
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Two-Dimensional Video Disdrometer (2DVD)
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NASA/GPM currently has six Two-Dimensional Video Disdrometers (2DVD) in
its inventory. These are identified by their respective serial numbers
(SN25, SN35, SN36, SN37, SN38 and our newest instrument SN70). When not deployed
for field campaigns, they will be used in support of GPM/PRF science data
collection.
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Daily 2DVD Quick Looks
Parsivel Disdrometer
Daily Parsivel Quick Looks
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