نوع مقاله : علمی -پژوهشی
نویسندگان
1 دانشگاه بهشتی
2 پردیس ابوریحان، دانشگاه تهران
چکیده
عنوان مقاله [English]
With respect to climate models uncertainty, the output of 16 climate models have been used to predict groundwater table in future (2015-2045) in this research. Different climate models are weighted in the basis of their ability in predicting monthly observed climate data in the base study period (1970-2000). With respect to climate models weights and their predictions, precipitation and temperature changes in 10, 50 and 90 probability percentile are estimated. Daily observation data of Hamadan synoptic station and Δp, Δt under A2 emission scenario at different probability percentile have been imported to an stochastic weather generator, named LARS-WG, and future precipitation and temperature data are produced for the study period (2015 – 2045). Using precipitation data and runoff which estimated by artificial neural network, groundwater fluctuations have been predicted for different level of risk in future. Based on observed data, annual depletion of groundwater table in Hamadan-Bahar aquifer is about 0.72 m and this amount will be change to 0.53 m, 1.1 m and 1.3 m in 10, 50 and 90 probability percentile respectively. The aquifer saturated thickness is 50 m and it will be dried in near future
کلیدواژهها [English]