Distribution and Trend Analysis of the Significant Wave Heights Using KMA and ECMWF Data Sets in the Coastal Seas,Korea

摘要

The coastal wave environment is a very important factor that directly affects the change of coastal topography,the habitat of marine life,and the design of offshore structures.In recent years,changes in the wave environment due to climate change are expected,and a trend analysis of the wave environment using available data sets is required.In this paper,significant wave heights which are measured at six ocean buoys (Deokjeokdo,Oeyeondo,Chibaldo,Marado,Pohang,Ullengdo) have been used to analyze long-term trend of normal waves.In advance,the outlier of measured data by Korea Meteorological Administration have been removed using Rosner test.And Pearson correlation analysis between the measured data and ECMWF reanalysis data has been conducted.As a results,correlation coefficient between two data were 0.849~0.938.Meanwhile,Mann-Kendall test has been used to analyze the long-term trend of normal waves.As a results,it was found that there were no trend at Deokjeokdo,Oeyeondo and Chibaldo.However,Marado,Pohang and Ullengdo showed an increasing tendency.