NOAA/AVHRR and DEM(Digital Elevation Model) together with the measured meteorological data are applied to modify Penman Formula. And the monthly potential evapotranspiration of Yarlung Tsangpo River Basin is calculated with the modified Penman Formula.

• 文中用NOAA数据、DEM数据结合实测气象数据对Penman公式进行修正,再用修正后的Penman公式计算雅鲁藏布江流域潜在蒸散量。