摘要
采用了一种偏振方法来测量土壤湿度,并改进了一种粗糙表面的偏振反射模型。利用该模型对土壤湿度的偏振特性进行了分析与实验,发现该模型模拟数据与实验数据之间存在很强的相关性,进而可以建立该模型中的某些参数与土壤湿度的定量关系,为定量反演土壤湿度提供新的途径。
In agriculture,hydrology and meteorology,monitoring the soil moisture in real time and in the long term by the remote sensing technology is very meaningful.However,how to quantitatively retrieve the properties of objectives is a unsolved problem in remote sensing.A new polarimetric method,which is different from the traditional remote sensing by radiometry,was employed for retrieving the soil moisture.A scattering polarization model was developed to analyze the polarimetric characteristics of soil moisture.And this model was examined by experiments.We found that the modeling data were very close to the experimental data.So the quantitative relationship between the parameters of this model and the soil moisture could be found.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2011年第6期708-712,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(40671135
40971196)
关键词
偏振遥感
偏振反射模型
土壤湿度
定量反演
polarization remote sensing
polarimetric reflectance model
soil moisture
quantitative retrieval
