DPR Closeup
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Closeup of the Dual-Frequency Precipitation Radar (DPR).
The DPR was built at JAXA and is being transported to NASA Goddard Space Flight Center for integration onto the GPM Core Observatory.
DPR
KuPR during Thermal Vacuum Testing
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KuPR during thermal vacuum testing at Tsukuba Space Center, Japan
DPR Ka-band Waveguide Closeup
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A close-up of the Dual-frequency Precipitation Radar (DPR) ka-band waveguide.
The DPR was built at JAXA and is being transported to NASA Goddard Space Flight Center for integration onto the GPM Core Observatory.
KaPR Range Testing
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KaPR during Range Testing at Tsukuba Space Center, Japan.
KuPR Range Testing
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KuPR during Range Testing at Tsukuba Space Center, Japan
JAXA Scientist next to the DPR
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A JAXA scientist standing next to the Dual-frequency Precipitation Radar (DPR) instrument, which will be integrated onto the GPM Core Observatory satellite at Goddard Space Flight Center.
The Japanese-built radar is a new instrument designed to take 3-D measurements of raindrops and snowflakes.
Spaceborne Precipitation Radar Ships from Japan to U.S.
By Aries Keck, NASA Goddard Space Flight Center Original www.nasa.gov Press Release (published 2/8/12) GREENBELT, Md. – Japanese scientists and engineers have completed construction on a new instrument designed to take 3-D measurements of the shapes, sizes and other physical characteristics of both raindrops and snowflakes. The instrument will be shipped from Japan to NASA's Goddard Space Flight Center, Greenbelt, Md., to be integrated into an upcoming NASA Earth science satellite. Designed and built by the Japan Aerospace Exploration Agency (JAXA) and Japan's National Institute of Information
GCPEx Ground Instruments
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Three GCPEx precipitation sensors with the Environment Canada building in the background, taken 7 February 2012.
Note the low snow amounts on the ground. Sensors left to right are: ADMIRARI (radiometer; U. Bonn), D3R (radar; NASA), DPR (radar; U. Koln). [This dual-precipitation radar (DRR) is not the same as to be on the GPM spacecraft.]
GPM's DPR Instrument
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GPM's Dual-Frequency Precipitation Radar, developed by NASA and JAXA.