COMPARISON OF DROUGHT FREQUENCY IN ARID AND HUMID REGIONS (CASE STUDY: GOLESTAN PROVINCE)

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MOSAEDI A.; MARASHI M.; KAVAKEBI GH.

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Paper Information

Journal: Journal of Agricultural Sciences and Natural Resources Year:2009 | Volume:16 | Issue:(SPECIAL ISSUE 1-A) Page(s): 0-0

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Title

COMPARISON OF DROUGHT FREQUENCY IN ARID AND HUMID REGIONS (CASE STUDY: GOLESTAN PROVINCE)

Author(s)

MOSAEDI A. | MARASHI M. | KAVAKEBI GH. | Issue Writer Certificate

Keywords

DROUGHTQ2

DROUGHT INDEXQ3

SPIQ3

DROUGHT FREQUENCYQ2

GOLESTAN PROVINCEQ2

Abstract

DROUGHT is one of the natural phenomenons that its prevention is not possible yet. This problem shows the importance of DROUGHT monitoring and creating a DROUGHT warning system. In this research to investigate DROUGHT frequency the Standardized Precipitation Index (SPI) for monthly and yearly periods were applied. For this reason, the precipitation data of meteorological stations of GOLESTAN PROVINCE were obtained from the authority. After some statistical tests such as: homogeneity and outlier test, monthly precipitation data of 26 stations for 30 years period (from 1976-77 to 2005-06) were selected. The SPI values for any months and any years were calculated and the DROUGHT situations were determined. The results show that in all periods and all stations the normal category has the heist frequency. Meantime, in any time periods there were more than one DROUGHT situations in the province. Moreover, the results show that the frequency of extreme events (sever DROUGHT and sever wet condition) in the semi-arid regions of the province is higher than humid regions. While, according to the SPI index these frequencies should be the same for all regions. On the other hand side, the frequency of wet and dry conditions (not extreme events) for the arid regions of the province is less than humid regions. Whereas, according to the SPI categories these frequencies should be the same for all regions.

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APA: Copy

MOSAEDI, A., MARASHI, M., & KAVAKEBI, GH.. (2009). COMPARISON OF DROUGHT FREQUENCY IN ARID AND HUMID REGIONS (CASE STUDY: GOLESTAN PROVINCE). JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 16((SPECIAL ISSUE 1-A)), 0-0. SID. https://sid.ir/paper/355794/en

Vancouver: Copy

MOSAEDI A., MARASHI M., KAVAKEBI GH.. COMPARISON OF DROUGHT FREQUENCY IN ARID AND HUMID REGIONS (CASE STUDY: GOLESTAN PROVINCE). JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2009;16((SPECIAL ISSUE 1-A)):0-0. Available from: https://sid.ir/paper/355794/en

IEEE: Copy

A. MOSAEDI, M. MARASHI, and GH. KAVAKEBI, “COMPARISON OF DROUGHT FREQUENCY IN ARID AND HUMID REGIONS (CASE STUDY: GOLESTAN PROVINCE),” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 16, no. (SPECIAL ISSUE 1-A), pp. 0–0, 2009, [Online]. Available: https://sid.ir/paper/355794/en

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