Affiliation:
1. Department of Civil Engineering, Faculty of Civil Engineering, Yıldız Technical University, Istanbul 34220, Turkey
Abstract
This study investigates the future wave climate-driven longshore sediment transport (LST) and shoreline change on the Karasu Coast, situated on the southwestern coast of the Black Sea, under the RCP4.5 and RCP8.5 wave climate scenarios. Within the scope of this study, hourly deep sea wave data between 2021 and 2100, according to the RCP4.5 and RCP8.5, were used in order to predict future LST processes. Net and gross LST rates were computed using various empirical and numerical methods based on hourly wave parameters. By the conclusion of the study period after 80 years, the average net LST rates were obtained as 48,000 and 51,500 m3/year in the RCP4.5 and RCP8.5, respectively, while the gross LST rates were 250,000 and 255,000 m3/year. Due to the increase in wave height and period in both climate scenarios compared to the historical data, the average gross LST rates are projected to rise in the future. The reduction in swell wave heights, coupled with an increase in wind wave heights, compared to the past has led to a reduction in net LST. The results show that, after 80 years, LST will have increased 2.5 times more in the near future in comparison with the middle future for both scenarios.
Funder
Scientific and Technological Research Council of Turkey
Reference39 articles.
1. Effect of climate change and wave direction on longshore sediment transport patterns in Southern California;Adams;Clim. Chang.,2011
2. Response of the Bight of Benin (Gulf of Guinea, West Africa) Coastline to Anthropogenic and Natural Forcing, Part1: Wave Climate Variability and Impacts on the Longshore Sediment Transport;Almar;Cont. Shelf Res.,2015
3. Modelling Wave-Driven Sediment Transport in a Changing Climate: A Case Study for Northern Adriatic Sea (Italy);Bonaldo;Reg. Environ. Chang.,2015
4. CMIP5-Based Global Wave Climate Projections Including the Entire Arctic Ocean;Wang;Ocean Model.,2016
5. Dastgheib, A., Reyns, J., Thammasittirong, S., Weesakul, S., Thatcher, M., and Ranasinghe, R. (2016). Variations in the Wave Climate and Sediment Transport due to Climate Change Along the Coast of Vietnam. J. Mar. Sci. Eng., 4.