This study was conducted to assess drought trend, frequency and extremity during 1966–
2012 over widely different climatic regimes in Iran. Two drought indicators, ie the …

Iran has a predominantly arid and semi‐arid climate where the drought hazards and their
variability are the crucial concerns for water resources management. This study assesses …

The aim of this paper is to investigate characteristics of meteorological and agricultural
droughts and their trends in Iran, as well as several subregions with different climate …

Understanding how drought changes have occurred is imperative to enhance the ability of
mitigating drought impacts. This consideration encourages carrying out a comprehensive …

In recent years, droughts have become more intense and frequent in arid and semi-arid
regions like Iran on the one hand, and water demand has been rising on the other hand and …

Abstract The Standardized Precipitation Index (SPI) is widely used as a drought
meteorological index, to identify drought characteristics including the number of events …

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 …

Drought is one of the most complex phenomena in the world; so, proper management is very
important in monitoring and reducing its damage. For this purpose, Standard Precipitation …

Drought is a lack of moisture in nature, consistent or unnatural. The term consistent refers to
a state of shortage, and unnatural refers to the deviation from an index of the regional …

This study investigates the main characteristics (duration, severity, and trend) of
meteorological drought events over Ankara Province, Turkey. We used 46 years of observed …