STUDY OF RELATIONSHIP BETWEEN MAXIMUM DAILY AND SHORT RAINFALL IN IRAN

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GHANBARPOUR MOHAMMAD REZA; MAHDAVI MOHAMMAD; TELVARI A.A.R.

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Journal: Year:2001 | Volume:13 | Issue:4 (49) Page(s): 22-26

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Information Journal Paper

Title

STUDY OF RELATIONSHIP BETWEEN MAXIMUM DAILY AND SHORT RAINFALL IN IRAN

Author(s)

GHANBARPOUR MOHAMMAD REZA | MAHDAVI MOHAMMAD | TELVARI A.A.R. | Issue Writer Certificate

Keywords

FREQUENCYQ4

DESIGN STORMQ4

SHORT DURATION RAIN FALLQ2

CLIMATIC REGIONSQ4

Abstract

A rainfall intensity (Depth), duration, FREQUENCY (IDF or DDF) relationship is needed for planning of water resources projects. The frequencies of high-intensity rainfalls is required for several engineering purpose, one of the most important is the estimation of extreme floods for inadequately gauged basins. In general, rainfall is associated with the floods of sub catchment or small catchment of shorter duration, similarly where the stream size decrease, their chances of being adequately gauged also decrease, and so it may be argued that short – duration rainfalls of less than 2 or 3 hr are of special importance in flood estimation. In this study the analysis of DDF for Iran has been carried out using synoptic meteorological stations and depth - duration ratio of shorter durations (15 minutes to 12 hr) to maximum 24hr (Rt/24) in all existing station. By using these values, isolation maps were plotted and than the median values of Rt/24 were selected for any CLIMATIC REGIONS. The DDF relationship of rainfall for any CLIMATIC REGIONS of Iran obtained by regression method based on duration and Rt/24.

Cites

INVESTIGATION OF PROPORTION OF DAILY MAXIMUM PRECIPITATION TO ANNUAL PRECIPITATION IN IRAN

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APA: Copy

GHANBARPOUR, MOHAMMAD REZA, MAHDAVI, MOHAMMAD, & TELVARI, A.A.R.. (2001). STUDY OF RELATIONSHIP BETWEEN MAXIMUM DAILY AND SHORT RAINFALL IN IRAN. PAJOUHESH-VA-SAZANDEGI, 13(4 (49)), 22-26. SID. https://sid.ir/paper/19635/en

Vancouver: Copy

GHANBARPOUR MOHAMMAD REZA, MAHDAVI MOHAMMAD, TELVARI A.A.R.. STUDY OF RELATIONSHIP BETWEEN MAXIMUM DAILY AND SHORT RAINFALL IN IRAN. PAJOUHESH-VA-SAZANDEGI[Internet]. 2001;13(4 (49)):22-26. Available from: https://sid.ir/paper/19635/en

IEEE: Copy

MOHAMMAD REZA GHANBARPOUR, MOHAMMAD MAHDAVI, and A.A.R. TELVARI, “STUDY OF RELATIONSHIP BETWEEN MAXIMUM DAILY AND SHORT RAINFALL IN IRAN,” PAJOUHESH-VA-SAZANDEGI, vol. 13, no. 4 (49), pp. 22–26, 2001, [Online]. Available: https://sid.ir/paper/19635/en

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