REGIONALIZATION OF RAINFALL TEMPORAL PATTERN IN IRAN

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HATAMI YAZD A.; GHAHRAMAN B.; KHODASHENAS S.R.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING Year:2009 | Volume:3 | Issue:6 Page(s): 66-68

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Information Journal Paper

Title

REGIONALIZATION OF RAINFALL TEMPORAL PATTERN IN IRAN

Author(s)

HATAMI YAZD A. | GHAHRAMAN B. | KHODASHENAS S.R. | Issue Writer Certificate

Keywords

RAINFALL TEMPORAL PATTERNQ2

RAINFALLQ2

REGIONALIZATION AND IRANQ3

Abstract

RAINFALL TEMPORAL PATTERN has a marked influence on design of dams, urban water harvesting, culverts, drainage design, flood potential and soil erosion. In this research we used data of 146 autographic RAINFALL stations of Iran to implement the RAINFALL TEMPORAL PATTERN. RAINFALL depth were calculated for each time interval from RAINFALL charts and were categorized to four quarters. The ranking method was used to arrive at RAINFALL TEMPORAL PATTERNs corresponding to time intervals of 1, 3, 9 and 12 hours. After normalizing the RAINFALL mass curves, every quarter of RAINFALL was ranked, number 1 for the highest. The final pattern was derived by averaging the quarter ranks and percentage of RAINFALLs corresponding to each duration. Adopting Ward method, 5, 9, 9, and 8 homogeneous regions were detected for short (<3 hr), medium (3-6 hr), and long (6-12, and>12 hr) RAINFALL time period, respectively. Design RAINFALL TEMPORAL PATTERN was . derived for every homogenous zone. There is a danger for mis-used temporal pattern by type patterns.

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APA: Copy

HATAMI YAZD, A., GHAHRAMAN, B., & KHODASHENAS, S.R.. (2009). REGIONALIZATION OF RAINFALL TEMPORAL PATTERN IN IRAN. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, 3(6), 66-68. SID. https://sid.ir/paper/134678/en

Vancouver: Copy

HATAMI YAZD A., GHAHRAMAN B., KHODASHENAS S.R.. REGIONALIZATION OF RAINFALL TEMPORAL PATTERN IN IRAN. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING[Internet]. 2009;3(6):66-68. Available from: https://sid.ir/paper/134678/en

IEEE: Copy

A. HATAMI YAZD, B. GHAHRAMAN, and S.R. KHODASHENAS, “REGIONALIZATION OF RAINFALL TEMPORAL PATTERN IN IRAN,” IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, vol. 3, no. 6, pp. 66–68, 2009, [Online]. Available: https://sid.ir/paper/134678/en

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