نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی و مدیریت آب، دانشگاه تربیت مدرس، تهران، ایران
2 پژوهشکده مهندسی و مدیریت آب، دانشگاه تربیت مدرس، تهران، ایران
3 شرکت آب منطقهای البرز
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In order to management and planning of water resources, the use of hydrological models as a suitable tool can be very effective in simulating hydrological processes such as water balance. Distributed hydrological models is simulated each of the water balance parameters by cell basin formation and solving equations in each cell. In the present study, the WetSpass-M distributed model is used in order to estimate and evaluate the components of the balance of Hashtgerd study area in Alborz province and the model is monthly implemented for 20 years. In order to calibrate and validate the model, first the monthly flow data of the hydrometric station are used as observational data. The remote sensing approach (SEBAL algorithm) is applied to re-estimate evapotranspiration. Then, the results of the two approaches are evaluated and compared. According to the model results in the Hashtgerd study area, the mean annual values of evapotranspiration and groundwater recharge are estimated to be 347.3 and 272.6 MCM, respectively. Furthermore, the mean annual annual values of evapotranspiration for plain and mountains are 241 and 106.3 MCM, respectively. The mean annual recharge rate in the plain is equal to 197 MCM, while it is estimated to be 75.6 MCM for mountains. The variations analysis of model outputs is evaluated based on the standard deviation for the water balance parameters in the plains and mountains. The results show that after the irrigation component, evapotranspiration, recharge, and rainfall components have the most variations during the simulation period.
کلیدواژهها [English]
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