REGIONALIZATION OF MAXIMUM DAILY PRECIPITATION OF IRAN

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KHAMCHIN MODHADAM F.; SEDGHI H.; KAVEH F.; MANSHOURI M.R.

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Journal: Journal of Water and Soil Year:2010 | Volume:24 | Issue:1 Page(s): 97-106

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Title

REGIONALIZATION OF MAXIMUM DAILY PRECIPITATION OF IRAN

Author(s)

KHAMCHIN MODHADAM F. | SEDGHI H. | KAVEH F. | MANSHOURI M.R. | Issue Writer Certificate

Keywords

REGIONALIZATIONQ2

MAXIMUM DAILY PRECIPITATIONQ3

PRINCIPAL COMPONENTSQ2

CLUSTER ANALYSISQ2

L- MOMENTQ2

Abstract

Most heavy storms result in destructive floods. One of the basic elements in analyzing floods in watersheds without data is hourly storms. The Determination of the storm of the watershed needs regional analysis of storms and transferring them to the gravity center of the watershed. MAXIMUM DAILY PRECIPITATION ( 24 P ), is the most accessible storm in any region, which can be converted to hourly precipitation. The analysis of the point and regional 24 P is one of climate studies requirement. REGIONALIZATION of 24 P , can be an influential step toward analyzing storms and floods. In order to accomplish such a task, two approaches are possible, one is using the old methods of geographical REGIONALIZATION and the other one is using the new methods like "Cluster Analysis" and "L-Moments Homogenous Tests". In this paper second approach was employed. All existing rain-gauge stations (N= 396) were considered and their available data were collected in this study. Basic tests were applied and 266 stations were removed due to the lack of the required conditions and only 130 stations were used in analysis. "Principal Components" method was used to omit the uninfluential variables (only 6 variables out of 21 were proved as basic and important). "Hierarchical Clustering" was used in the process of REGIONALIZATION of the stations indicated of seven different regions. These regions were distributed in different locations throughout the country and the REGIONALIZATION map is presented. The "L- Moments Homogenous Tests" were also employed for further indication. According to the final results, the REGIONALIZATION of 24 P of Iran's rain-gauge stations can be defined as 7 homogenous regions.

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APA: Copy

KHAMCHIN MODHADAM, F., SEDGHI, H., KAVEH, F., & MANSHOURI, M.R.. (2010). REGIONALIZATION OF MAXIMUM DAILY PRECIPITATION OF IRAN. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 24(1), 97-106. SID. https://sid.ir/paper/141759/en

Vancouver: Copy

KHAMCHIN MODHADAM F., SEDGHI H., KAVEH F., MANSHOURI M.R.. REGIONALIZATION OF MAXIMUM DAILY PRECIPITATION OF IRAN. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2010;24(1):97-106. Available from: https://sid.ir/paper/141759/en

IEEE: Copy

F. KHAMCHIN MODHADAM, H. SEDGHI, F. KAVEH, and M.R. MANSHOURI, “REGIONALIZATION OF MAXIMUM DAILY PRECIPITATION OF IRAN,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 24, no. 1, pp. 97–106, 2010, [Online]. Available: https://sid.ir/paper/141759/en

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