نتایج جستجو برای: physiography of recharging basins
تعداد نتایج: 21164983 فیلتر نتایج به سال:
دشت شیراز با توجه به شکل خاص خود پتانسیل بالایی از نظر آلودگی دارد. پس از تقسیم بندی منابع آلاینده به 6 گروه مختلف، در هر گروه منابع ناشی از آلاینده ها شناسایی گردید. سپس بر اساس استانداردهای موجود، یک برنامه پایش تدوین شد.در نهایت با استفاده از مدل basins برنامه پایش پیشنهادی اصلاح و بهینه گردید.
flood is one of the major natural disasters in iran, which is mostly, affected most parts of the country and caused hazards. therefore, identification of the area with high potential risk of flood occurrence is the main purpose in order to the flood control and reducing its damages. in this research the role of the flood routing in identification of the area with high potential flooding has inv...
abstract one of the problems in design of irrigation structures is sedimentation control in the inlet to the irrigation networks. water quality for agriculture requires that the sediments be controlled and reduced to the permissible limit at their entrance point to the turnouts and irrigation networks. this is possible by constructing a sedimentation basin. the bigger the basin, the best the re...
In this essay, we investigated the effects of climate change on the rivers of selected basins of Guilan province, one of the northern provinces of Iran for the period 2020 to 2050 under three climate scenarios: RCP2.6, RCP4.5, RCP8.5. For this purpose, rainfall and temperature data from 45 climate data stations and 20 hydrometric stations from 1983 to 2013 were used. The average precipitatio...
The behaviour of transient groundwater mounds in response to infiltration from surface basins has been studied for decades, but some common settings still lack analytical solutions. It shown that applying mathematical integration the line-sink solution developed by Hantush 1960s pumping an unconfined aquifer, considering recharge over a defined area, is identical his mounding below rectangular ...
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