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Hrvatski meteorološki časopis, Vol. 52 No. 52, 2017.

Stručni rad

COMPARISON OF METEOROLOGICAL INDICES FOR SPATIO-TEM- PORAL ANALYSIS OF DROUGHT IN CHAHRMAHAL-BAKHTIYARI PROVINCE IN IRAN

AZIN ZAREI orcid id orcid.org/0000-0003-2534-2405 ; Dept. of Natural Resources, Shahrekord University, Iran
E. ASADI ; Faculty of Natural Resources, Shahrekord University, Iran.
A. EBRAHIMI ; Dept. of Natural Resources, Shahrekord University, Iran 2 Faculty of Natural Resources, Shahrekord University, Iran.
M. JAFARY M. ; Faculty of Natural resources, University of Tehran, Tehran, Iran
A. MALEKIAN ; Faculty of Natural resources, University of Tehran, Tehran, Iran
M. TAHMOURES ; PhD. in watershed management, Faculty of Natural Resources, University of Tehran, Iran
E. ALIZADEH E. orcid id orcid.org/0000-0003-0148-5612 ; Dept. of Natural Resources, Tehran University, Iran

Puni tekst: hrvatski pdf 444 Kb

str. 13-26

preuzimanja: 324

citiraj

Puni tekst: engleski pdf 444 Kb

str. 13-26

preuzimanja: 560

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Sažetak

Drought monitoring is important for risk assessment and management, as well as for
effective action to prevent and reduce the effects of drought. Drought characteristics such as
intensity, duration and extent can be analyzed by 14 different drought indices. Choosing
drought indices should be based on available data and its quality and ability of the index to de-
termine spatial and temporal characteristics of drought. The objective of the present study is
drought monitoring by different indices, including China-Z index (CZI), Z-score, Standard-
ized precipitation index (SPI) and Effective drought index (EDI) indices, and comparing the
performance of drought indices in the Chaharmahal-Bakhtiyari province, duration 1980-
2013.Results showed that SPI and CZI, Z-score have the strong relationships, particularly dur-
ing normal years. Furthermore, the results of frequency analysis showed that the drought oc-
currence of during 1998- 2012 have been increased compared to 1983- 1998 period. CZI
showed a similar behavior to the SPI, especially in normal and dry condition and EDI and Z-
score showed similar results. Finally, the results of the present study showed that EDI index is
more sensitive to detect the onset of drought, compared to other indices.

Ključne riječi

Keyword: Meteorological indices; Drought monitoring; Spatio-temporal analysis; drought fre- quency; Chahrmahal-Bakhtiyari Province

Hrčak ID:

201610

URI

https://hrcak.srce.hr/201610

Datum izdavanja:

1.6.2018.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.997 *