Miaoling Liang

Jul 29, 2023 | mdpi.com | Miaoling Liang |Xing Yuan |Shiyu Zhou |Zhanshan Sam Ma

Abstract:Flash droughts challenge early warnings due to their rapid onset, which requires a proper drought index and skillful nowcasting system. A few studies have assessed the nowcast skill for flash droughts using a one-dimensional index, but whether the models can capture their spatiotemporal evolution remains unclear. In this study, a three-dimensional meteorological flash drought index based on the percentile of 15-day moving average precipitation minus evapotranspiration (P-ET) is developed.