TITLE

A Study on the Temporal and Local Distribution of Showers Generating Flood in Zolachai River Basin by Using Intensity-Duration-Frequency-Area Curves Relationships

AUTHOR(S)
Hejazizadeh, Zahra; Jahanshiri, Elahe; Naserzadeh, Mohammad Hossein
PUB. DATE
May 2009
SOURCE
Journal of Applied Sciences;2009, Vol. 9 Issue 10, p1922
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The present research sets out to study the temporal and local distribution of showers generating flood in Zolachai river basin. To carry out this research the rainfall data of 13 non-recording and recording rain gauges over a 15-year statistical period (1986-2000) were employed. The main aim of this study is to prepare intensity-duration-frequency and duration-area-depth 2 curves and combine them in intensity-duration-frequency-area curve forms in order to recognize and study rainfall parameters. To do so, after selecting stormy days isohyet's maps and Duration-Area-Depth curves were drawn using Excel, Arc view and ArcGIS software. Also, to draw Intensity-Duration-Frequency curves, hydrological software called Hyfa was utilized. Finally, the above-mentioned curves were combined and Intensity-Duration-frequency-Area curves were drawn using Excel software for different return periods. In this research four parameters including intensity-duration- frequency-area were presented collectively, which had never been performed in the previous researches on Zolaehai river basin. Thus, this research was carried out to raise the confidence of coefficient in water projects like construction of dams and prediction of flood for Zolachai river basin.
ACCESSION #
40081357

 

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