Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices

0397196 - ÚVGZ 2014 RIV CH eng J - Článek v odborném periodiku
Shahabfar, A. - Eitzinger, Josef
Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices.
Atmosphere. Roč. 4, č. 2 (2013), s. 94-112. E-ISSN 2073-4433
Institucionální podpora: RVO:67179843
Klíčová slova: drought monitoring * drought index * standardized precipitation index * semi-arid region * Iran
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 1.048, rok: 2013

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 index of E. de Martonne (I) are compared and evaluated for assessing spatio-temporal dynamics of droughts in six climatic regions in Iran. Results indicated that by consideration of the advantages and disadvantages of the mentioned drought predictors in Iran, the Z-Score, CZI and MCZI could be used as a good meteorological drought predictor. Depending on the month, the length of drought and climatic conditions of the region, they are an alternative to the SPI that has limitations both because of only a few available long term data series in Iran and its complex structure.
Trvalý link: http://hdl.handle.net/11104/0224817