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Water & Energy Cycles

This proposal is for participation in the prelaunch Science Definition Team of the NASA Soil Moisture Active-Passive (SMAP) mission. The SMAP satellite will carry a radar and a radiometer, both at L-band, for observations of global near-surface soil moisture. While the dependence of both the radar and the radiometer signals on soil moisture has been demonstrated through theoretical and experimental means, there are still considerable gaps in the quantitative estimation of soil moisture from these measurements. Through more than 15 years of experience in the field of microwave inversion, the PI has developed a suite of algorithms and approaches for solving the soil moisture estimation and validation problems. The specific problems to be addressed through the PI’s participation in the SMAP science definition team are centered around radar soil moisture algorithms in the presence of surface vegetation cover, their validation, and their combination with radiometer retrieval algorithms. The algorithms will be based on quantitative parametrization of the corresponding physics-based forward models, followed by the application of appropriate nonlinear optimization techniques. The PI will assist the team in defining such algorithmic approaches, specifying system and measurement characteristics that have bearing on the applicability of these algorithms, and defining calibration and validation requirements and strategies.

Project PI: Mahta Moghaddam/University of Michigan

Electrical Engineering and Computer Science Department University of Michigan 1301 Beal Avenue, Room 3238 Ann Arbor, MI 48109-2122

Phone: (734) 647-0244

Fax: (734) 647-2106

Email: mmoghadd@umich.edu

http://www.eecs.umich.edu/~mmoghadd/

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Started: Aug 10, 2010

Last Activity: Dec 16, 2010

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