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GeoSTAR - a microwave sounder for geostationary satellites

Show simple item record Lambrigtsen, Bjorn Wilson, William Tanner, Alan Gaier, Todd Ruf, Chris Piepmeier, Jeff 2008-04-17T20:36:06Z 2008-04-17T20:36:06Z 2004-09-20
dc.identifier.citation IEEE International Geoscience and Remote Sensing, Anchorage, Alaska, September 20 - 24, 2004. en_US
dc.identifier.clearanceno 04-2092
dc.description.abstract GeoSTAR represents a new approach to microwave atmospheric sounding that is now under development. It has capabilities similar to sensors currently operating on low earth orbiting weather satellites but is intended for deployment in geostationary orbit - where it will complement future infrared sounders and enable allweather temperature and humidity soundings and rain mapping. The required spatial resolution of 50 km or better dictates an aperture of 4 meters or more at a sounding frequency of 50 GHz, which is difficult to achieve with a real aperture system - this is the reason why it has until now not been possible to put a microwave sounder on a geostationary platform. GeoSTAR is instead based on a synthetic aperture imaging approach. Among the advantages of such a system are that there are no moving parts, and the size of the aperture is easily expandable to meet future needs. A ground based prototype of GeoSTAR is currently under development in an effort led by the Jet Propulsion Laboratory. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004. en_US
dc.subject microwave en_US
dc.subject atmospheric sounding en_US
dc.subject aperture synthesis en_US
dc.title GeoSTAR - a microwave sounder for geostationary satellites en_US
dc.type Preprint en_US

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