Global Drought Monitoring with Drought Severity Index (DSI) using Google Earth Engine

Abstract Impacts and repercussions of certain disasters could be seen immediately while other disasters like drought show their deadly effects with time. Droughts are scientifically studied with help of either a simple or a composite indices introduced by researchers and organizations like the Food and Agriculture Organization (FAO), World Meteorological Organization (WMO), and United Nations (UN), etc. DSI or drought severity index is a composite index with vegetation data and evapotranspiration data as input variables. The results are acquired after standardizing the final product. In this study, droughts across the globe with respect to seven continents are identified with DSI in the years 2001 to 2019.