A new measuring technique for thermal inertia of soil

To calculate thermal inertia value of soil, there must be heat-input item in to soil surface. Solar radiation on the soil surface is not shaded and is shaded using an automatic swinging plate, at the same time. The surface temperatures of not shading and shading are measured by thermal radiometer connecting to automatically the data-logging device. According to the measurements and a model we can calculate the soil thermal inertia. The fast measuring method for soil thermal inertia was validated by experiments that carried out at Yucheng Experimental Remote Sensing Site of Chinese Academy of Sciences. In the experiments irrigating different volume of water made the soil targets with different thermal inertia values. Stable and reasonable thermal inertia values of soil were obtained by the data that use the new method.