Drought Analysis of an Area Using Google Earth Engine

Drought is a long period of low rainfall which affects the growth of plants and living organisms. Drought occurs when an area or region suffers below-average rainfall or a water deficit for a prolonged time period. It is one of the most complex environmental disasters across the world. Drought also creates the same impact like floods or cyclones. Drought is categorized as meteorological, hydrological, agricultural and socio-economic. The area which experiences the precipitation deficit subjects to meteorological drought. Reduction in stream flow, ground water, and reservoir and lake levels indicates Hydrological drought. Soil water depletion causes Agricultural drought. The effect caused by the meteorological, hydrological and agricultural drought on people and economic activities is termed as socio-economic drought. This study is focusing on meteorological drought. Standard Precipitation Index (SPI) and Drought Severity Index (DSI) are used to calculate meteorological drought.