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Azimuthal signature of coincidental brightness temperature and normalized radar cross-section obtained using airborne PALS instrument

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dc.contributor.author Colliander, Andreas
dc.contributor.author Kim, Seungbum
dc.contributor.author Yueh, Simon
dc.contributor.author Cosh, Mike
dc.contributor.author Jackson, Tom
dc.contributor.author Njoku, Eni
dc.date.accessioned 2014-11-19T23:20:25Z
dc.date.available 2014-11-19T23:20:25Z
dc.date.issued 2010-07-05
dc.identifier.citation Progress in Electromagnetics Research Symposium, Cambridge, Massachusetts, July 5-8, 2010 en_US
dc.identifier.clearanceno 10-0875
dc.identifier.uri http://hdl.handle.net/2014/44797
dc.description.abstract Coincidental airborne brightness temperature (TB) and normalized radar-cross section (NRCS) measurements were carried out with the PALS (Passive and Active L- and S-band) instrument in the SMAPVEX08 (SMAP Validation Experiment 2008) field campaign. This paper describes results obtained from a set of flights which measured a field in 45º steps over the azimuth angle. The field contained mature soy beans with distinct row structure. The measurement shows that both TB and NRCS experience modulation effects over the azimuth as expected based on the theory. The result is useful in development and validation of land surface parameter forward models and retrieval algorithms, such as the soil moisture algorithm for NASA’s SMAP (Soil Moisture Active and Passive) mission. Although the footprint of the SMAP will not be sensitive to the small resolution scale effects as the one presented in this paper, it is nevertheless important to understand the effects at smaller scale. 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, 2010 en_US
dc.title Azimuthal signature of coincidental brightness temperature and normalized radar cross-section obtained using airborne PALS instrument en_US
dc.type Preprint en_US


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