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

被引：43

作者：

Shahabfar, Alireza ^{[1
]}

Eitzinger, Josef ^{[2
,3
]}

机构：

[1] Univ Wurzburg, Inst Geog & Geol, Remote Sensing Unit, D-97074 Wurzburg, Germany

[2] Univ Nat Resources & Life Sci Vienna, Inst Meteorol, A-1190 Vienna, Austria

[3] Acad Sci Czech Republ, CzechGlobe Global Change Res Ctr, ASCR, Vvi, Brno 60300, Czech Republic

来源：

ATMOSPHERE | 2013年 / 4卷 / 02期

关键词：

drought monitoring; drought index; standardized precipitation index; semi-arid region; Iran; STANDARDIZED PRECIPITATION INDEX; TEMPORAL VARIABILITY; MODEL;

D O I：

10.3390/atmos4020094

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：94 / 112

页数：19

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