16-Stream flow analysis for hydrological drought of Krishna basin.

Abstract

Drought is generally viewed as the occurrence of below normal natural water availability for the place & time, To a hydrologist, it means below average content in streams, reservoirs, lakes, tanks, ground water aquifers & soil moisture. Although a drought originates from precipitation deficit, a severe water shortage does not necessarily coincide with a severe shortage in the precipitation because of the complexities of the processes responsible for transforming precipitation into hydrological and agricultural waters. The deficits in surface water are reflected through low stream flows, :Stream flow is one of the important hydrological parameters as it not only reflects the precipitation deficiency but also the catchment characteristics, land use & vegetation which are responsible for generating runoff. The drought phenomenon can thus be better studied from the stream flow of a basins for which local singularities are eliminated.