Use of multiincidence angle RADARSAT-1 SAR data to incorporate the effect of surface roughness in soil moisture estimation

被引:88
作者
Srivastava, HS [1 ]
Patel, P
Manchanda, ML
Adiga, S
机构
[1] Indian Space Res Org, Reg Remote Sensing Serv Ctr, Dehra Dun 248001, Uttar Pradesh, India
[2] Indian Space Res Org, SAC, Ahmedabad 380015, Gujarat, India
[3] Indian Space Res Org Headquarters, Bangalore 560094, Karnataka, India
来源
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2003年 / 41卷 / 07期
关键词
backscatter coefficient (sigma degrees); multiincidence angle synthetic aperture radar (SAR); surface roughness;
D O I
10.1109/TGRS.2003.813356
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 proposed study offers an approach to incorporate the effect of surface roughness in the estimation of soil moisture from space without actually measuring surface roughness conditions on ground. It is required to acquire synthetic aperture radar data at low and high incidence angles, such that the soil moisture changes are negligible between the two acquisitions.
引用
收藏
页码:1638 / 1640
页数:3
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