Effect of soil moisture and crop cover in remote sensing

被引：7
|
作者：
Singh, D
Mukherjee, PK
Sharma, SK
Singh, KP
机构：
[1] Dept. of Electronics Engineering, Institute of Technology, Banaras Hindu University
来源：
SATELLITE DATA FOR ATMOSPHERE, CONTINENT AND OCEAN RESEARCH | 1996年 / 18卷 / 07期
关键词：
D O I：
10.1016/0273-1177(95)00291-X
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
An investigation with moist soil covered by narrow leaf crop at different stages of growth for establishing relation with scattering/reflection coefficient for both like polarizations (i.e. HH-pol and VV-pol) has been done. There is a linear relationship between crop covered soil moisture with scattering/reflection coefficient. Using linear relationship a theoretical model was proposed. The results from the model have been compared with the observed values. In this model, scattering/reflection coefficient was taken as dependent variable and percentage soil moisture (PSM) as independent variable. Regression parameters were obtained using the regression analysis which shaw that the brightness temperature at X-band depends significantly on the polarization that is chosen for receiving channel. The VV-pol is more sensitive to changes in the soil moisture, whereas, the contribution of crop morphology was more dominant near nadir for HH-pol. The calculated values show that the scattering increases as the PSM increases, whereas, observed values show no significant trend worth any conclusion.
引用
收藏
页码：63 / 66
页数：4
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