Seasonal forecasts offer economic benefit for hydrological decision making in semi-arid regions.

ABSTRACT: Increasing frequencies of droughts require proactive preparedness, particularly in semi-arid regions. As forecasting of such hydrometeorological extremes several months ahead allows for necessary climate proofing, we assess the potential economic value of the seasonal forecasting system SEAS5 for decision making in water management. For seven drought-prone regions analyzed in America, Africa, and Asia, the relative frequency of drought months significantly increased from 10 to 30% between 1981 and 2018. We demonstrate that seasonal forecast-based action for droughts achieves potential economic savings up to 70% of those from optimal early action. For very warm months and droughts, savings of at least 20% occur even for forecast horizons of several months. Our in-depth analysis for the Uppe

SUBMITTER: Portele TC 

PROVIDER: S-EPMC8134578 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature