Impact of Climate Change on Beaver River Flow in Western Oklahoma
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Development of technologies that use 85% of the world's fossil fuels and increasing demands and decreasing these resources have increased the production of CO2 and thus climate change as well as rising global average temperature as 0.75� C, which causes natural disasters, such as droughts, floods and heat waves and can have negative impacts on the environment and economy.So, review and assessment of climate change in future periods seems necessary for proper planning in the Beaver River catchment basin. Beaver River is located in northwestern Oklahoma, and continues to Canton Lake. In this study, using the output of HADCM3 general circulation models of the atmosphere under scenario A2, B1, A1B, hydraulic parameters, minimum and maximum temperatures will be forecasted in meteorological stations for future period of 2016-2045 and 2046 - 2075 using LARS-WG model. Then using IHACRES hydrologic model, after calibration and verification of model, runoff from precipitation and temperature for the next period of 2016-2045 and 2046 - 2075 was obtained in the hydrometric stations. The output of HADCM3 predicts the annual temperature and precipitation for future at the meteorological stations. The results show that climate change will affect the amount of annual runoff in hydrometric stations until the year 2075 and disrupts the runoff distribution during the months, so that the flow rate will be decreased.
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