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 …

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 …

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 …

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 …

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 …

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 …

Drought as an exigent natural phenomenon, with high frequency in arid and semi-arid
regions, leads to enormous damage to agriculture, economy, and environment. In this study …

Six meteorological drought indices including percent of normal (PN), standardized
precipitation index (SPI), China-Z index (CZI), modified CZI (MCZI), Z-Score (Z), the aridity …

Regional assessment of drought characteristics provides essential information for water
resources management. The study aimed to analyze the regional meteorological drought in …

In addition to drought intensity, drought magnitude (DM) is an important parameter in
drought analysis. Therefore, in this study, the drought intensity and DM trends are …