INVESTIGATING TEMPORAL TRENDS AND SPATIAL CHARACTERISTICS OF RAINFALL AND METEOROLOGICAL DROUGHT IN THE WEST OF IRAN DURING THE LAST FEW DECADES

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MAROFI S.; TABARI H.; AEINI A.; MAROFI H.

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Journal: JOURNAL OF WATER SCIENCES AND ENGINEERING Year:2012 | Volume:1 | Issue:3 Page(s): 55-72

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Title

INVESTIGATING TEMPORAL TRENDS AND SPATIAL CHARACTERISTICS OF RAINFALL AND METEOROLOGICAL DROUGHT IN THE WEST OF IRAN DURING THE LAST FEW DECADES

Author(s)

MAROFI S. | TABARI H. | AEINI A. | MAROFI H. | Issue Writer Certificate

Keywords

TREND ANALYSISQ2

METEOROLOGICAL DROUGHTQ1

RAINFALLQ2

SPATIAL CHARACTERISTICSQ2

STANDARD PRECIPITATION INDEXQ2

Abstract

Drought is one of the most serious problems arising for human societies and ecosystems from climate variability. This phenomenon causes billions of dollars in global damages annually and affects more people than any other form of natural disasters.In this study, the trends of RAINFALL and METEOROLOGICAL DROUGHT time series were investigated at ten stations located in the east of Iran for the period of 1966–2005. Amounts of drought severity were computed using STANDARD PRECIPITATION INDEX (SPI) for a 12-month time scale. The trend analyses of the data were also performed using the Mann–Kendall test and the Sen’s slope estimator. The results of this study showed that the RAINFALL and drought data had high variations to average values in the study period, and these variations increased with increasing aridity towards the east of the study area. The results of the trend tests revealed statistically significant decreasing trends in the RAINFALL time series of Sar-Pol-Zohab, Bijar, Sanandaj and Saghez stations at the rates of 7.99, 6.68, 5.51 and 5.03 mm/year, respectively. Furthermore, drought severity significantly increased at Kermanshah, Saghez, Sanandaj and Khorram-Abad stations during the last four decades. The results indicated that all of the stations experienced at least one extreme drought during the study period.

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APA: Copy

MAROFI, S., TABARI, H., AEINI, A., & MAROFI, H.. (2012). INVESTIGATING TEMPORAL TRENDS AND SPATIAL CHARACTERISTICS OF RAINFALL AND METEOROLOGICAL DROUGHT IN THE WEST OF IRAN DURING THE LAST FEW DECADES. JOURNAL OF WATER SCIENCES AND ENGINEERING, 1(3), 55-72. SID. https://sid.ir/paper/235531/en

Vancouver: Copy

MAROFI S., TABARI H., AEINI A., MAROFI H.. INVESTIGATING TEMPORAL TRENDS AND SPATIAL CHARACTERISTICS OF RAINFALL AND METEOROLOGICAL DROUGHT IN THE WEST OF IRAN DURING THE LAST FEW DECADES. JOURNAL OF WATER SCIENCES AND ENGINEERING[Internet]. 2012;1(3):55-72. Available from: https://sid.ir/paper/235531/en

IEEE: Copy

S. MAROFI, H. TABARI, A. AEINI, and H. MAROFI, “INVESTIGATING TEMPORAL TRENDS AND SPATIAL CHARACTERISTICS OF RAINFALL AND METEOROLOGICAL DROUGHT IN THE WEST OF IRAN DURING THE LAST FEW DECADES,” JOURNAL OF WATER SCIENCES AND ENGINEERING, vol. 1, no. 3, pp. 55–72, 2012, [Online]. Available: https://sid.ir/paper/235531/en

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