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Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices
Remote Sensing Unit, Institute of Geography and Geology, University of Wuerzburg, Campus Hubland Nord-86, 97074 Wuerzburg, Germany
Institute of Meteorology, University of Natural Resources and Life Sciences Vienna, Peter-Jordan Str. 82, 1190 Vienna, Austria
CzechGlobe—Global Change Research Centre, Academy of Sciences of the Czech Republic ASCR, v. v. i., Bělidla 986/4a, 603 00 Brno, Czech Republic
* Author to whom correspondence should be addressed.
Received: 27 February 2013; in revised form: 25 March 2013 / Accepted: 12 April 2013 / Published: 25 April 2013
Abstract: 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.
Keywords: drought monitoring; drought index; standardized precipitation index; semi-arid region; Iran
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MDPI and ACS Style
Shahabfar, A.; Eitzinger, J. Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices. Atmosphere 2013, 4, 94-112.
Shahabfar A, Eitzinger J. Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices. Atmosphere. 2013; 4(2):94-112.
Shahabfar, Alireza; Eitzinger, Josef. 2013. "Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices." Atmosphere 4, no. 2: 94-112.