Abstract: Since the late 1960s, the West African Sudan?Sahel zone (10°?18°N) has experienced persistent and often severe drought, which is among the most undisputed and largest regional climate changes in the last half-century. ...

Abstract: he prospects for U.S. seasonal drought prediction are assessed by diagnosing simulation and hindcast skill of drought indicators during 1982?2008. The 6-month standardized precipitation index is used as the primary drought ...

Abstract: he inherent persistence characteristics of various drought indicators are quantified to extract predictive information that can improve drought early warning. Predictive skill is evaluated as a function of the seasonal ...