D3R Instrument on the Road
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The D3R ground validation instrument attached to a trailer and ready for deployment.
Multimedia
Multimedia content
GPM Crossing the Earth
A computer visualization of the GPM Core Observatory passing over the Earth and out of darkness.
GPM Closeup
A closeup look at the GPM Core Observatory spacecraft, showing the solar panels unfolding.
Dual-frequency Dual-polarized Doppler Radar (D3R)
The D3R will operate as part of GPM Ground Validation, supporting GPM pre-launch algorithm development and will contribute to post-launch precipitation product validation. In the pre-launch era, the D3R provides independent estimation of hydrometeor classification and drop size distribution retrievals. The radar thus offers an insight into the microphysical processes that dominate the retrieval (and associated measurement error) of precipitation types and rates from satellite data.
Water for Tea
An overview of the GPM mission and its goals, narrated by Sir Patrick Stewart.
TRMM Satellite Assembly
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The TRMM satellite being assembled at Goddard Space Flight Center.
Satellite Image of Hurricane Gullame
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Satellite image of Hurricane Guillaume.
GPM Constellation Concept
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An illustration of the GPM satellite constellation orbitting earth and taking measurements.
GPM Core Satellite Visualization
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Visualization of the GPM Core Observatory satellite orbitting the planet earth.