Characteristics of Strong Winds on the Korean Peninsula during the Non-typhoon Period: Data Analysis for 116 Years from 1904 to 2019

Strong winds analyzed in this study were described as winds of more than 14 m/s, among all winds developed during the period, except during the typhoon season, which affected the Korean Peninsula. In order to analyse the temporal and spatial characteristics of strong winds during non-typhoon periods from 1904 to 2019, hourly wind speed data recorded at all weather observation points (ASOS, Bouy, Beacon) in Korea were utilized. Both the rate of occurrence of strong winds and the strong winds were higher in coastal in metropolitan cities. The annual change in wind speed showed a tendency to decrease in coastal areas and seas, and a complex increase and decrease in inland areas by point. Looking at the overall rate of occurrence of strong winds and strong wind speeds in Korea during all periods of the study, the overall trend has declined since modern weather observations, but has been increasing again since the early and mid-1970s. In terms of seasonal characteristics of strong winds, except for winter (December, January, February), the rate of occurrence of strong winds and strong wind speeds was relatively higher in March and April, which are spring months.