INVESTIGATION OF METEOROLOGICAL DROUGHTS IN THE SISTAN AND BALOUCHESTAN PROVINCE, USING THE STANDARDIZED PRECIPITATION INDEX AND MARKOV CHAIN MODEL

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RAZIEI T.; DANESHKAR ARASTEH P.; AKHTARI R.A.; SAGHAFIAN B.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2007 | Volume:3 | Issue:1 (7) Page(s): 25-35

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Title

INVESTIGATION OF METEOROLOGICAL DROUGHTS IN THE SISTAN AND BALOUCHESTAN PROVINCE, USING THE STANDARDIZED PRECIPITATION INDEX AND MARKOV CHAIN MODEL

Author(s)

RAZIEI T. | DANESHKAR ARASTEH P. | AKHTARI R.A. | SAGHAFIAN B. | Issue Writer Certificate

Keywords

METEOROLOGICAL DROUGHTQ3

MARKOV-CHAINQ2

SISTAN AND BALOUCHESTAN PROVINCEQ4

SPIQ3

Abstract

Drought is an insidious environmental phenomenon which is more pronounced in arid and semi arid regions. Central eastern, and southern regions of Iran are characterized as arid, and semi arid climate. Precipitation variability in the Sistar and Balouchestan Province is very high. This is due to remoteness from Mediterranean cyclonic trajectory and the predominance of a subtropical high pressure system Accordingly, the Sistan and Balouchestan is more prone to drought than other provinces in Iran. In this paper, the probability of drought occurrence and extent in this province is investigated applying lag-1 Markov chain on SPI time series in 3- and 6-month time scales. The results showed that the probability of drought persistence; based on 6-month SP time series, is higher than 70 percent in central portion of the province and decreases to 50 percent moving east Considering the drought equilibrium probability, the result: also indicated that the central district of the province an affected by drought events 30% of the time and therefore is more vulnerable to drought conditions compared to other regions in the province.

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APA: Copy

RAZIEI, T., DANESHKAR ARASTEH, P., AKHTARI, R.A., & SAGHAFIAN, B.. (2007). INVESTIGATION OF METEOROLOGICAL DROUGHTS IN THE SISTAN AND BALOUCHESTAN PROVINCE, USING THE STANDARDIZED PRECIPITATION INDEX AND MARKOV CHAIN MODEL. IRAN-WATER RESOURCES RESEARCH, 3(1 (7)), 25-35. SID. https://sid.ir/paper/100137/en

Vancouver: Copy

RAZIEI T., DANESHKAR ARASTEH P., AKHTARI R.A., SAGHAFIAN B.. INVESTIGATION OF METEOROLOGICAL DROUGHTS IN THE SISTAN AND BALOUCHESTAN PROVINCE, USING THE STANDARDIZED PRECIPITATION INDEX AND MARKOV CHAIN MODEL. IRAN-WATER RESOURCES RESEARCH[Internet]. 2007;3(1 (7)):25-35. Available from: https://sid.ir/paper/100137/en

IEEE: Copy

T. RAZIEI, P. DANESHKAR ARASTEH, R.A. AKHTARI, and B. SAGHAFIAN, “INVESTIGATION OF METEOROLOGICAL DROUGHTS IN THE SISTAN AND BALOUCHESTAN PROVINCE, USING THE STANDARDIZED PRECIPITATION INDEX AND MARKOV CHAIN MODEL,” IRAN-WATER RESOURCES RESEARCH, vol. 3, no. 1 (7), pp. 25–35, 2007, [Online]. Available: https://sid.ir/paper/100137/en

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