A multiplicative relationship, drought magnitude (M)=drought intensity (I) × drought duration or length (L) is used as a basis for predicting the largest expected value of hydrological drought magnitude, E(M <Subscript> T </Subscript>) over a period of T-year (or month). The prediction of E(M <Subscript> T </Subscript>) is carried out in...</subscript></subscript>

The drought severity is the most important parameter for the design of water storage systems in order to alleviate the water shortages during drought periods. The largest drought severity, i.e. severity of a worst drought at a desired truncation level and for the desired return period can be...