GENERATION OF RAINFALL DATA IN STATIONS WITH LIMITED DATA IN FARS PROVINCE

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MOGHIMI M.M.; SEPASKHAH ALI REZA

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING Year:2008 | Volume:2 | Issue:3 Page(s): 11-19

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Title

GENERATION OF RAINFALL DATA IN STATIONS WITH LIMITED DATA IN FARS PROVINCE

Author(s)

MOGHIMI M.M. | SEPASKHAH ALI REZA | Issue Writer Certificate

Keywords

DAILY RAINFALLQ2

TWO-PART MODELQ3

MARKOV CHAINQ1

GAMMA DISTRIBUTION FUNCTIONQ2

Abstract

The role of rainfall in water resource management especially at arid and semi-arid regions is essential and generation of data for this hydrologic variable is very important step in a better water resources and agriculture planning. In this research for generating rainfall data in stations with limited data in Fars province, the method that proposed by some researchers in the year 1986 was used. In this proposed method for estimation of model parameters for generating rainfall data in stations with limited data, certain empirical relationships that exist between model parameters (Transitional probability from a dry day to a wet day, Transitional probability from a wet day to a wet day and GAMMA DISTRIBUTION FUNCTION parameters (α andβ) that calculated in stations with enough data and some monthly average rainfall properties (Ratio of wet days and Amount rain per wet days) in the same stations was used. The number of stations with historical DAILY RAINFALL data was 9 that by use of data of these stations, general relationships for estimation of model parameters for generating DAILY RAINFALL data in Fars province were calculated. By use of these relationships, in 7 stations with limited DAILY RAINFALL data (5 years) DAILY RAINFALL data was generated. Results show that estimation of DAILY RAINFALL data by this simple method is reliable in comparison with observed DAILY RAINFALL data.

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APA: Copy

MOGHIMI, M.M., & SEPASKHAH, ALI REZA. (2008). GENERATION OF RAINFALL DATA IN STATIONS WITH LIMITED DATA IN FARS PROVINCE. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, 2(3), 11-19. SID. https://sid.ir/paper/134826/en

Vancouver: Copy

MOGHIMI M.M., SEPASKHAH ALI REZA. GENERATION OF RAINFALL DATA IN STATIONS WITH LIMITED DATA IN FARS PROVINCE. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING[Internet]. 2008;2(3):11-19. Available from: https://sid.ir/paper/134826/en

IEEE: Copy

M.M. MOGHIMI, and ALI REZA SEPASKHAH, “GENERATION OF RAINFALL DATA IN STATIONS WITH LIMITED DATA IN FARS PROVINCE,” IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, vol. 2, no. 3, pp. 11–19, 2008, [Online]. Available: https://sid.ir/paper/134826/en

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