Abstract: Based on the work of routine operation on the drought monitoring applying remote sensing model by NOAA/AVHRR data in recent years,the regional drought monitoring model by MODIS and the process of data treatment was established,considering the factors related to drought,such as water,land use/cover,topographic factor,climate and vegetation coverage in Shaanxi Province.By using the established model and work flow,the severe spring drought of 2005 in Shaanxi Province was successfully monitored.The results showed that the drought monitoring applying remote sensing,based on the MODIS data by the thermal inertia method and vegetation supply water index(VSWI),was feasible.The modified VSWI model could improve the precision and visual effect of the estimated drought area.

Key words: MODIS, MODIS, Shaanxi Province, Drought Monitoring