Investigation of climate change impacts on streamflow regime of a river Arazkooseh River Basin

In this research, impacts of climate change on the streamflow hydrological status of the Arazkooseh River are discussed. After Calibration and validation of the LARS-WG, HadCM3 was downscaled under A2 Scenario in three climatology station. Beside, calibration and validation of the SWAT model were do...

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Language:fas
Published: Kharazmi University 2016-09-01
Series:تحقیقات کاربردی علوم جغرافیایی
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Online Access:http://jgs.khu.ac.ir/article-1-2690-en.pdf
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description In this research, impacts of climate change on the streamflow hydrological status of the Arazkooseh River are discussed. After Calibration and validation of the LARS-WG, HadCM3 was downscaled under A2 Scenario in three climatology station. Beside, calibration and validation of the SWAT model were done by observed data relative to past period of times. Streamflow values are then predicted using climatic parameters of period of 2011-2030, 2046-2065 and 2080-2099 years via SWAT model. The results indicated that the average annual temperature will increased around 0.8, 1.2 and 4.9 °C in desired periods, respectively. Precipitation values will increased 8.8 and 11.2 percent in the early and mid- century and it will decreased with 7.8 percent in the last years of century, correspondingly. The peak of rainfall will moved from month of March to the December. Because of climate changes, streamflow will increase 13 and 5 percent in the near periods. By contrast, in this case, it will reduce around 18 percent in far future. In this case research, the river discharge will increased in autumn and will decreased in spring seasons. Likewise, results of estimation showed that the annual peak flow will shifted from month of March to the April.
format Article
id doaj-art-e15c1bb9cf334cf7a4b9a5801be18d83
institution Kabale University
issn 2228-7736
2588-5138
language fas
publishDate 2016-09-01
publisher Kharazmi University
record_format Article
series تحقیقات کاربردی علوم جغرافیایی
spelling doaj-art-e15c1bb9cf334cf7a4b9a5801be18d832025-01-31T17:23:19ZfasKharazmi Universityتحقیقات کاربردی علوم جغرافیایی2228-77362588-51382016-09-011642109132Investigation of climate change impacts on streamflow regime of a river Arazkooseh River Basin01 In this research, impacts of climate change on the streamflow hydrological status of the Arazkooseh River are discussed. After Calibration and validation of the LARS-WG, HadCM3 was downscaled under A2 Scenario in three climatology station. Beside, calibration and validation of the SWAT model were done by observed data relative to past period of times. Streamflow values are then predicted using climatic parameters of period of 2011-2030, 2046-2065 and 2080-2099 years via SWAT model. The results indicated that the average annual temperature will increased around 0.8, 1.2 and 4.9 °C in desired periods, respectively. Precipitation values will increased 8.8 and 11.2 percent in the early and mid- century and it will decreased with 7.8 percent in the last years of century, correspondingly. The peak of rainfall will moved from month of March to the December. Because of climate changes, streamflow will increase 13 and 5 percent in the near periods. By contrast, in this case, it will reduce around 18 percent in far future. In this case research, the river discharge will increased in autumn and will decreased in spring seasons. Likewise, results of estimation showed that the annual peak flow will shifted from month of March to the April.http://jgs.khu.ac.ir/article-1-2690-en.pdfarazkoosedownscalinghadcm3lars-wgswat
spellingShingle Investigation of climate change impacts on streamflow regime of a river Arazkooseh River Basin
تحقیقات کاربردی علوم جغرافیایی
arazkoose
downscaling
hadcm3
lars-wg
swat
title Investigation of climate change impacts on streamflow regime of a river Arazkooseh River Basin
title_full Investigation of climate change impacts on streamflow regime of a river Arazkooseh River Basin
title_fullStr Investigation of climate change impacts on streamflow regime of a river Arazkooseh River Basin
title_full_unstemmed Investigation of climate change impacts on streamflow regime of a river Arazkooseh River Basin
title_short Investigation of climate change impacts on streamflow regime of a river Arazkooseh River Basin
title_sort investigation of climate change impacts on streamflow regime of a river arazkooseh river basin
topic arazkoose
downscaling
hadcm3
lars-wg
swat
url http://jgs.khu.ac.ir/article-1-2690-en.pdf