MONITORING DECADAL PRECIPITATION VARIABILITY IN UPPERINDUS BASIN, PAKISTAN

Upper Indus Basin (UIB) is critical for Pakistan’s economy as it glacial incomposition and snow melt that provides 80% of the fresh water to River. Decadal fluctuationsin precipitation in UIB during 1980-2010, using interpolation technique Arc Map were exploredin present study. The results provided a positive correlation between winter andsummer runoff middle elevation basins UIB. map decadal difference mean annualrainfall (1980-2010), prepared Geographic Information System 9.0, revealed around Gilgit,Skardu, Astore, Chilas Bunji, was found least annual rainfall, i.e. -1.68 to-2.14mm, whereas area Kakul experienced maximum rainfall ranged from-13.63 -17.45mm. study suggested south lesser Himalayan areas variability period whereas, north inferred safer addition from its reserve.