Spatio-Temporal Analysis of Droughts in Semi-Arid Regions by Using Meteorological Drought Indices
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- 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.…
Autor(en): | Alireza Shahabfar, Josef Eitzinger |
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URN: | urn:nbn:de:bvb:20-opus-128644 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Philosophische Fakultät (Histor., philolog., Kultur- und geograph. Wissensch.) / Institut für Geographie und Geologie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Atmosphere |
Erscheinungsjahr: | 2013 |
Band / Jahrgang: | 4 |
Heft / Ausgabe: | 2 |
Seitenangabe: | 94-112 |
Originalveröffentlichung / Quelle: | Atmosphere 2013, 4, 94-112; doi:10.3390/atmos4020094 |
DOI: | https://doi.org/10.3390/atmos4020094 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 551 Geologie, Hydrologie, Meteorologie |
Freie Schlagwort(e): | Iran; drought index; drought monitoring; semi-arid region; standardized precipitation index |
Datum der Freischaltung: | 31.03.2016 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung |