Water Yield Estimation in Polrudwatershed Based on Empirical Methods and Modelling in Geographic Information System (GIS)
Journal Title: Journal of River Engineering - Year 2014, Vol 2, Issue 7
Abstract
Accurate estimation of basin discharge has been discussed by the experts in various construction projects and this important issue has considerable influence on the design of the required structures and their cost. Basin discharge can be calculated according to different methods. According to the conditions of the basins under study, the accuracy of these approaches varies and the obtained results often show relatively large differences. To estimate the annual average flow of the basin, the obtained results of discharge stations are analyzed by different methods and regional relations discharge are obtained. To this end, in this study four regional models consists of an area – discharge, area – standard deviation, area - specific discharge and height - discharge have been used. Also, basin discharge estimation is presented based on flow shortage methods. For this purpose, the method of empirical relations, like ICAR, Justin and Coutange catchment were used to calculate discharge then regional models were compared. The obtained results indicate the accuracy of the results of flow shortage methods to determine the discharge basin. In this research, Polrud basin co-discharge model has been developed in the Gilan province by using the capabilities of GIS model.
Authors and Affiliations
Seyed Karim Fazlolahzade Sadati - Mohammad Heydari - Nasrolah Javaheri - Faridah Othman
Survey on agricultural wastewater quality level in Sugarcane agro-industrial units located in west and east of Karoon River by using WQI
The present research has been conducted to survey on agricultural wastewater quality from Amir Kabir and MirzaKoochak Khan units in the west, and Farabi, DeabelKhazaei and Salman in the east side of Karoon River. Mon...
Estimation of Flood Warning Times for Flood Safety Management Downstream of Dams
Floods have always been a threat for people and property due to the extent of possible damages. The flooding could be catastrophic in case of possible dam failure and its impacts on downstream areas could also be very...
Experimental Study on Lozenge Collar Affection in Reduce Amount of Scouring Around Bridge Piers
Scour happening around bridges Pier is one of the major reasons to bridge destruction. At present time, there are various methods to prevent scour of bridges bases. One method is to set protector boards (collars) arou...
3D Simulation of Flow over a Triangular Broad-Crested Weir
On natural streams where it is necessary to measure wide range of discharges, a triangular control has several advantages. Firstly, it provides a large breadth at high flows, so that the backwater effect is not excessive...
Determination of the Best Model for Flood Flows in the Western Basin of Lake Urmia
Today, the management of water resources has been taken into consideration based on sustainable development in the world. Natural events such as floods have been among human problems in the past and present and hydrol...