L-BAND ACTIVE / PASSIVE TIME SERIES MEASUREMENTS OVER A GROWING SEASON USING THE COMRAD GROUND-BASED SMAP SIMULATOR

被引：4

作者：

O'Neill, P. ^{[1
]}

Kurum, M. ^{[1
]}

Joseph, A. ^{[1
]}

Fuchs, J. ^{[1
]}

Young, P. ^{[1
]}

Cosh, M. ^{[2
]}

Lang, R. ^{[3
]}

机构：

[1] NASA, Hydrol Sci Lab, Code 617, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[2] US Dept Agr, Agr Res Serv, Hydrol & Remote Sensing Lab, Beltsville, MD 20105 USA

[3] George Washington Univ, Dept Elect & Comp Engn, Washington, DC 20052 USA

来源：

2013 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2013年

关键词：

soil moisture; microwave; geophysical retrievals; ComRAD; SMAP; corn; soybeans;

D O I：

10.1109/IGARSS.2013.6721086

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Once launched in late 2014, NASA's Soil Moisture Active Passive (SMAP) mission will use a combination of a four-channel L-band radiometer and a three-channel L-band radar to provide high resolution global mapping of soil moisture and landscape freeze/thaw state every 2-3 days. These measurements are valuable to improved understanding of the Earth's water, energy, and carbon cycles, and to many applications of societal benefit. In order for soil moisture to be retrieved accurately from SMAP microwave data, prelaunch activities are concentrating on developing improved geophysical retrieval algorithms for each of the SMAP baseline products. The ComRAD truck-based SMAP simulator collected active/passive microwave time series data at the SMAP incident angle of 40 degrees over corn and soybeans during 2012 for use in refining SMAP retrieval algorithms.

引用

页码：37 / 40

页数：4

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