The Application of Satellite Radar for the Detection of Precipitation.
NAVAL RESEARCH LAB WASHINGTON D C
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An exploratory study is made of the characteristics of satellite-borne radar for the detection of precipitation. Both low orbit and synchronous satellites are considered. Although more detailed technical studies are needed before an optimum approach can be determined, it is concluded that it is possible from space to detect precipitation equivalent to a rainfall rate of at least 4 mmhr perhaps even less over a wide swath 4000 km or more. With a smaller swath about 800 km it should be possible to map the region of precipitation with a sensitivity of better than 2 mmhr, resolve in altitude to an accuracy of 1 to 2 km, and determine the intensity of the precipitation.