THE ANALYSIS OF DROUGHT EXTENSION OVER ISFAHAN PROVINCE BASED ON FOUR DROUGHT INDICES

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SARHADI A.; SOLTANI KOUPAEI SAEID; MODARES R.

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Journal: IRANIAN JOURNAL OF NATURAL RESOURCES Year:2008 | Volume:61 | Issue:3 Page(s): 555-570

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Title

THE ANALYSIS OF DROUGHT EXTENSION OVER ISFAHAN PROVINCE BASED ON FOUR DROUGHT INDICES

Author(s)

SARHADI A. | SOLTANI KOUPAEI SAEID | MODARES R. | Issue Writer Certificate

Keywords

DROUGHTQ3

DECILES INDICESQ3

STANDARDIZED PRECIPITATION INDEXQ3

ISFAHAN PROVINCEQ3

DROUGHT SPATIAL VARIATIONSQ3

Abstract

The analysis of spatial extension of DROUGHT is an important issue in DROUGHT risk management. The estimation of influenced region of DROUGHT in ISFAHAN PROVINCE is the aim of this study. To do this, the annual rainfall data of 12 stations of the most important stations of ISFAHAN PROVINCE were used in the period of 1973-2003. First, trend and homogeneity tests were applied and Isfahan station was detected to show a significant trend. Then, DROUGHT condition for each year was determined using four indices including PNPI, DPI, RAI and SPI. The results showed that DROUGHT covers 31, 37, 23 and 52% of entire province at each single year based on the above indices, respectively. The study also showed that, among different indices, only DPI has a significant relationship with longitude. This implies that DROUGHT intensity and frequency increase eastward. However, other indices did not show the same relationship. According to SPI, as the most important index, 50% of the entire province has been influenced by DROUGHT during 30 years period. This revealed the importance of launching a regional DROUGHT monitoring and management system to reduce DROUGHT disaster.

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APA: Copy

SARHADI, A., SOLTANI KOUPAEI, SAEID, & MODARES, R.. (2008). THE ANALYSIS OF DROUGHT EXTENSION OVER ISFAHAN PROVINCE BASED ON FOUR DROUGHT INDICES. IRANIAN JOURNAL OF NATURAL RESOURCES, 61(3), 555-570. SID. https://sid.ir/paper/23185/en

Vancouver: Copy

SARHADI A., SOLTANI KOUPAEI SAEID, MODARES R.. THE ANALYSIS OF DROUGHT EXTENSION OVER ISFAHAN PROVINCE BASED ON FOUR DROUGHT INDICES. IRANIAN JOURNAL OF NATURAL RESOURCES[Internet]. 2008;61(3):555-570. Available from: https://sid.ir/paper/23185/en

IEEE: Copy

A. SARHADI, SAEID SOLTANI KOUPAEI, and R. MODARES, “THE ANALYSIS OF DROUGHT EXTENSION OVER ISFAHAN PROVINCE BASED ON FOUR DROUGHT INDICES,” IRANIAN JOURNAL OF NATURAL RESOURCES, vol. 61, no. 3, pp. 555–570, 2008, [Online]. Available: https://sid.ir/paper/23185/en

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