Soil moisture mapping using ESTAR under dry conditions from the Southern Great Plains Experiment (SGP99)

被引:9
作者
Guha, A [1 ]
Jacobs, JM
Jackson, TJ
Cosh, MH
Hsu, EC
Judge, J
机构
[1] Univ Florida, Dept Civil & Coastal Engn, Gainesville, FL 32611 USA
[2] USDA ARS, Hydrol & Remote Sensing Lab, Beltsville, MD 20705 USA
[3] Univ Florida, Dept Agr & Biol Engn, Ctr Remote Sensing, Gainesville, FL 32611 USA
来源
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2003年 / 41卷 / 10期
基金
美国国家航空航天局;
关键词
microwave; remote sensing; soil moisture; MICROWAVE MEASUREMENTS; RADIOMETER; HYDROLOGY; EMISSION; IMAGES; MODEL;
D O I
10.1109/TGRS.2003.817187
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
The electronically scanned thin array radiometer (ESTAR) was utilized for soil moisture mapping during the Southern Great Plains Experiment (SGP99). A retrieval algorithm was applied to obtain soil moisture from passive microwave measurements at 1.4 GHz. The algorithm was verified using ground data collected during SGP99. The results indicate a good correlation between observed and predicted soil moisture values and are consistent with results obtained from the same instrument in previous experiments. The present results demonstrate the validity of the retrieval algorithm for moderately to extremely dry soils. The ESTAR measurements along with ancillary data were used to create soil moisture maps of the entire region.
引用
收藏
页码:2392 / 2397
页数:6
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