Synergistic Use of AirMOSS P-band SAR with the SMAP L-band Radar-Radiometer for Soil Moisture Retrieval

被引:0
|
作者
Akbar, R. [1 ,2 ]
Chen, R. [2 ]
Tabatabaeenejad, A. [2 ]
Moghaddam, M. [2 ]
机构
[1] MIT, Dept Civil & Environm Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA
[2] Univ Southern Calif, Ming Hsieh Dept Elect Engn, Los Angeles, CA 90089 USA
关键词
ALGORITHM;
D O I
暂无
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
We present and discuss an inter-comparison between microwave remote sensing observations from the NASA Soil Moisture Active-Passive (SMAP) mission and those from the NASA Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS). Earth gridded 1, 3, and 9 km AirMOSS and SMAP SAR observations show, in general, a strong correlation (R-2 >= 0.5). However, the correlation degrades at extreme AirMOSS local incidence angles. L-hand brightness temperature from SMAP and P-hand backscatter from AirMOSS are almost uncorrelated (R-2 <= -0.3) and indicate the need for more mathematically comprehensive techniques to merge these datasets to estimate surface soil moisture.
引用
收藏
页码:793 / 795
页数:3
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