Change of Mean Sea Level due to Coastal Development and Climate Change in the Western Coast of Korean Peninsula

摘要

Change of mean sea level in the western coast of Korean peninsula was estimated with the observed tide data of the KHOA.The cause of the change was investigated.Mean sea levels in the western coast have been changed due to coastal development projects in the coastal zone.The estimated variations,which are significantly different regionally,vary from -6.8 cm in Incheon to 38 cm in Gunsan.The changing rate of mean sea level occurred by natural factors such as global warming varies from 1.1 mm/year in the north to 4.4 mm/year in the south of western coast of Korean peninsula.In Jeju,sea level rise and rise of sea temperature showed a close relationship.Water temperature rise of one degree increases mean sea level to 0.6 mm in Jeju.Rising rate of mean sea level has increased rapidly after the mid-1980s.