Estimating Farmland Soil Moisture in Eastern Gansu Province Using NOAA Satellite Data

Some statistical models established by using vegetation index data calculated from NOAA satellite visible and infrared data, brightness temperature data from satellite channel No.4 and soil moisture data observed at agricultural meteorological stations in the farmland of the eastern Gansu Province. The results show that vegetation index could reflect a part of moisture information, and there is some relationship between brightness temperature and soil moisture. Therefore, vegetation index and brightness temperature can be used to monitor drought regime.