LONG-TERM TRENDS OF EXTREME WAVES BASED ON 55 YEARS OF OBSERVATION DATA FROM THE COASTAL SEA AREA OF CHINA

On the background of global warming and sea level rise, the trend of extreme waves in the coastal sea area has been under sustained consideration (Sasaki, 2012. Young et al, 2011 and 2019. Liu et al, 2023). The First Scientific Assessment Report on Ocean and Climate Change of China and The Fourth Assessment Report on Climate Change of China were published in 2020 and 2022 respectively. However, there have been no concrete results on the long-term trends of wave changes in China. In this paper, using wave data from in situ observation sites along the coast of China, long-term trends in extreme wave elements over the past 55 years were investigated.