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Asefjah, Behnaz, Fanian, Faezeh, Feizi, Zahra, AbolhasaniZarjo, Azam, Paktinat, Hadi, TaghiNaghilou, Mohsen, Molaei Atani, A., Asadollahi, M., Babakhani, M., Kouroshniya, A., Salehi, F.. (1393). Meteorological drought monitoring using several drought indices (case study: Salt Lake Basin in Iran). , 19(2), 155-165. doi: 10.22059/jdesert.2014.52344
Behnaz Asefjah; Faezeh Fanian; Zahra Feizi; Azam AbolhasaniZarjo; Hadi Paktinat; Mohsen TaghiNaghilou; A. Molaei Atani; M. Asadollahi; M. Babakhani; A. Kouroshniya; F. Salehi. "Meteorological drought monitoring using several drought indices (case study: Salt Lake Basin in Iran)". , 19, 2, 1393, 155-165. doi: 10.22059/jdesert.2014.52344
Asefjah, Behnaz, Fanian, Faezeh, Feizi, Zahra, AbolhasaniZarjo, Azam, Paktinat, Hadi, TaghiNaghilou, Mohsen, Molaei Atani, A., Asadollahi, M., Babakhani, M., Kouroshniya, A., Salehi, F.. (1393). 'Meteorological drought monitoring using several drought indices (case study: Salt Lake Basin in Iran)', , 19(2), pp. 155-165. doi: 10.22059/jdesert.2014.52344
Asefjah, Behnaz, Fanian, Faezeh, Feizi, Zahra, AbolhasaniZarjo, Azam, Paktinat, Hadi, TaghiNaghilou, Mohsen, Molaei Atani, A., Asadollahi, M., Babakhani, M., Kouroshniya, A., Salehi, F.. Meteorological drought monitoring using several drought indices (case study: Salt Lake Basin in Iran). , 1393; 19(2): 155-165. doi: 10.22059/jdesert.2014.52344

Meteorological drought monitoring using several drought indices (case study: Salt Lake Basin in Iran)

Desert
مقاله 8، دوره 19، شماره 2، مهر 2014، صفحه 155-165    اصل مقاله (450.57 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jdesert.2014.52344
نویسندگان
Behnaz Asefjah1؛ Faezeh Fanian1؛ Zahra Feizi1؛ Azam AbolhasaniZarjo1؛ Hadi Paktinat* 2؛ Mohsen TaghiNaghilou1؛ A. Molaei Atani3؛ M. Asadollahi1؛ M. Babakhani1؛ A. Kouroshniya1؛ F. Salehi1
1Desert Management Dept., International Desert Research Center (IDRC), University of Tehran , Tehran, Iran
2R.S. and G.I.S. Dept., Faculty of Geography, University of Tehran, Tehran, Iran
3Faculty of Agricultural Economics and Development, University of Tehran, Karaj, Iran
چکیده
Drought detecting is a necessary aspect of drought risk management. It is generally performed using
different drought indices that are effectively continuous functions of rainfall and other hydro- meteorological
variables. A number of drought indices have been introduced and used in various countries to date. In the
current research, four meteorological drought indices including the standardized precipitation index (SPI),
China-Z index (CZI), modified CZI (MCZI) and Z-Score (Z) are compared and evaluated for monitoring
droughts in Salt Lake Basin in Iran. The comparison of indices was carried out based on drought classes that
were monitored in the study area using 40 years of data. The results indicated that SPI, CZI and Z-Score
performed similarly with regard to drought identification and responded slowly to drought onset. DI appeared
to be very sensitive to precipitation rates, but had unsteady spatial and temporal variation. Additionally, by
considering the advantages and disadvantages of the mentioned drought predictors in Iran, the CZI and ZScore
could be used as good meteorological drought predictors.
کلیدواژه‌ها
Drought Monitoring؛ Drought Index؛ Semi-arid region؛ Iran
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