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

Please always quote using this URN: urn:nbn:de:bvb:20-opus-128644
  • 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, theSix 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.show moreshow less

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Metadaten
Author: Alireza Shahabfar, Josef Eitzinger
URN:urn:nbn:de:bvb:20-opus-128644
Document Type:Journal article
Faculties:Philosophische Fakultät (Histor., philolog., Kultur- und geograph. Wissensch.) / Institut für Geographie und Geologie
Language:English
Parent Title (English):Atmosphere
Year of Completion:2013
Volume:4
Issue:2
Pagenumber:94-112
Source:Atmosphere 2013, 4, 94-112; doi:10.3390/atmos4020094
DOI:https://doi.org/10.3390/atmos4020094
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 551 Geologie, Hydrologie, Meteorologie
Tag:Iran; drought index; drought monitoring; semi-arid region; standardized precipitation index
Release Date:2016/03/31
Licence (German):License LogoCC BY: Creative-Commons-Lizenz: Namensnennung