论文利用2005年、2006年怀来实验场附近玉米生长期中的多次野外试验数据，以热惯量模型为基础，探讨MODIS数据监测土壤水分的可行性。论文对该模型与算法进行了分析，并探讨了不同植被覆盖度下，热惯量方法监测土壤水分的可行性。论文引入归一化植被指数对热惯量法进行修正，得到一个新的回归参数，通过实验分析验证，在不同植被覆盖下，该参数与土壤含水量具有较好的相关关系，具有一定的实际可行性。

The paper discusses the feasibility to detect the soil moisture using MODIS data for different vegetation coverage. The thermal inertia model is adopted, and it is based on the survey of the corn field in Huailai experiment station. However, the thermal inertia model is limited by the vegetation, so a new parameter, which is the product of NDVI and thermal inertia, is introduced for the correlation analysis. And it is validated that the new parameter has a better correlation with the soil moisture.