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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCES   SUMMER 2007 , Volume 13 , Number 2; Page(s) 311 To 323.
 
Paper: 

CALIBRATING THE DIKEN RELATIONSHIP DURING THE ESTIMATING OF THE PMF (PROBABLE MAXIMUM FLOOD LEVEL) FOR THE MARUN-KOOPAL AND ZOHREH-HENDIJAN WATERSHEDS

 
 
Author(s):  SHAHIDI ALI, BEHNIA A.A.K.
 
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Abstract: 

The Khuzistan plain is one of the most fertile and abundant in surface water resources plains in Iran, in as much as 30% of the total rivers in Iran flow through the region. These rivers create five major watersheds in the region: The Karon watershed, The Marun - Koopal watershed, The Dez watershed, The Karkheh watershed and the Zohreh - Hendijan watershed. Such a vast potential in the region has brought about various studies regarding the development of the region and the building of reservoir dams and hydropower schemes. These studies were basically carried out in watersheds which Laclede any fundamental data for the calculating of the maximum flow during flooding, and there in such water sheds empirical methods were used of calculate such a flow. In this paper in addition to a review of the existing empirical methods and their real kinship with the works carried out to date, due to the preferred use of the Deacon method in the region, a revalue action of the data via this method has been under taken. In order to do so, after a brief survey, twelve hydrometer stations were selected and the data obtained from each completed and rectified. Then by the correlation between area and flood with various flood return periods, results with 98% probability were obtained. The studies also proved that in the Deacon Method the exponential for the equation shows more than 40% error of measurement in the prediction of the Maximum Flood of a flood and thus is not suitable to measure the volume of the inundations Therefore it is suggested that a research method be analyzed to further carry out the study.

 
Keyword(s): MAXIMUM FLOOD, EMPIRICAL, HYDROMETER STATIONS, KHUZESTAN
 
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