Temporal and Spatial Variations of Marine Meteorological Elements and Characteristics of Sea Fog Occurrence in Korean Coastal Waters during 2013-2017

2013~2017년 연안해역별 해양기상요소의 시·공간 변화 및 해무발생시 특성 분석

  • Park, So-Hee (Department of Earth and Marine Sciences, Jeju National University) ;
  • Song, Sang-Keun (Department of Earth and Marine Sciences, Jeju National University) ;
  • Park, Hyeong-Sik (Department of Earth and Marine Sciences, Jeju National University)
  • 박소희 (제주대학교 해양과학대학 지구해양과학과) ;
  • 송상근 (제주대학교 해양과학대학 지구해양과학과) ;
  • 박형식 (제주대학교 해양과학대학 지구해양과학과)
  • Received : 2019.12.26
  • Accepted : 2020.02.04
  • Published : 2020.03.31


This study investigates the temporal and spatial variations of marine meterological elements (air temperature (Temp), Sea Surface Temperature (SST), and Significant Wave Height (SWH)) in seven coastal waters of South Korea, using hourly data observed at marine meteorological buoys (10 sites), Automatic Weather System on lighthouse (lighthouse AWS) (9 sites), and AWS (20 sites) during 2013-2017. We also compared the characteristics of Temp, SST, and air-sea temperature difference (Temp-SST) between sea fog and non-sea-fog events. In general, annual mean values of Temp and SST in most of the coastal waters were highest (especially in the southern part of Jeju Island) in 2016, due to heat waves, and lowest (especially in the middle of the West Sea) in 2013 or 2014. The SWH did not vary significantly by year. Wind patterns varied according to coastal waters, but their yearly variations for each coastal water were similar. The maximum monthly/seasonal mean values of Temp and SST occurred in summer (especially in August), and the minimum values in winter (January for Temp and February for SST). Monthly/seasonal mean SWH was highest in winter (especially in December) and lowest in summer (June), while the monthly/seasonal variations in wind speed over most of the coastal waters (except for the southern part of Jeju Island) were similar to those of SWH. In addition, sea fog during spring and summer was likely to be in the form of advection fog, possibly because of the high Temp and low SST (especially clear SST cooling in the eastern part of South Sea in summer), while autumn sea fog varied between different coastal waters (either advection fog or steam fog). The SST (and Temp-SST) during sea fog events in all coastal waters was lower (and more variable) than during non-sea-fog events, and was up to -5.7℃ for SST (up to 5.8℃ for Temp-SST).


Grant : 기상.지진See-At기술개발연구

Supported by : 기상청


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