Droughts caused by meteorological factors such as a long-term lack of precipitation can propagate into several types drought through the hydrological cycle. Among them, phenomenon in which has significant impact on ecosystem be defined an ecological drought. In this study, Ecological Drought Condition Index-Vegetation (EDCI-veg) was newly proposed to quantitatively evaluate and monitor effects ...

The present study examined year-to-year variations in areas affected by drought during a period of 39 water yearsin Iran. Ninety-five meteorological stations were chosen to provide near-continuous long-term records, althoughsome data was missing (less than 10%). The missing data points were estimated using a linear correlation methodbetween the reference station with the missing data points and...

Accurate estimation of drought events is vital for the mitigation their adverse consequences on water resources, agriculture and ecosystems. Machine learning algorithms are promising methods prediction as they require less time, minimal inputs, relatively complex than dynamic or physical models. In this study, a combination machine with Standardized Precipitation Evapotranspiration Index (SPEI)...