tailieunhanh - Impacts of climate change on wave regimes in the east sea

The study applied the PRECIS and SWAN modelling packages to simulate wind and wave regimes under climate change in the Vietnam East Sea. The results indicated that under climate change scenario, by the end of the century, there are significant changes in both wave height and wave period in summer and winter months. In the East Sea during July, wave height is expected to increase while wave period expected to increases . On the other hand, wave height in January is projected to decrease approximately 7% while wave period in the same month is projected to decreases . There are no significant changes in wave direction. | ENVIRONMENTAL SCIENCES CLIMATOLOLY Impacts of climate change on wave regimes in the East Sea Xuan Hien Nguyen1 Van Uu Dinh2 Van Khiem Mai 1 Van Tra Tran1 3 Van Tien Pham1 1Vietnam Institute of Meteorology Hydrology and Climate Change Vietnam 2VNU University of Sciences Vietnam 3TUDortmund University Germany Received 20 July 2016 accepted 25 October 2016 Abstract The study applied the PRECIS and SWAN modelling packages to simulate wind and wave regimes under climate change in the Vietnam East Sea. The results indicated that under climate change scenario by the end of the century there are significant changes in both wave height and wave period in summer and winter months. In the East Sea during July wave height is expected to increase while wave period expected to increases . On the other hand wave height in January is projected to decrease approximately 7 while wave period in the same month is projected to decreases . There are no significant changes in wave direction. Keywords climate change climate change scenario PRECIS SWAN. Classification number Introduction Climate change causes global warming and consequently changes meteorological coastal and wave conditions ocean currents and sea level. There is a large number of studies within the last few years assessing the impacts of climate change on sea wave regimes. The study by Seneviratne et al. 2012 based on a large number of data sources such as data from monitoring stations satellite image and wave hindcasting concluded that average weight height have increased in the Pacific and Northern Atlantic within the last 50 years and at the southern parts of global oceans in the 1980s 1 . Other studies such as Woolf et al. 2002 Allan Komar 2006 Adams et al. 2008 Menendez et al. 2008 Izaguirre et al. 2011 also based on different data sources determined the linkages between changes in the wave-wind regime and the changes in climate such as ENSO 2-6 . Other studies on the impacts of climate change

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