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http://dx.doi.org/10.5322/JESI.2021.30.11.925

Impact of Tidal Effects on Fog Events in the Western Coast of Korea  

An, Hye Yeon (The Institute of Environmental Studies, Pusan National University)
Jeong, Ju-Hee (The Institute of Environmental Studies, Pusan National University)
Kim, Yoo-Keun (The Institute of Environmental Studies, Pusan National University)
Publication Information
Journal of Environmental Science International / v.30, no.11, 2021 , pp. 925-936 More about this Journal
Abstract
The study was aimed to investigate the correlation between tidal effects and fog occurrence in Incheon and Mokpo, which are located in the middle and southern coasts of the West Sea of Korea, respectively. The investigation used meteorological data obtained from the automated synoptic observing systems and automatic weather stations and ocean data from tide stations from 2010 to 2019. Fog occurrence frequency was highest at high tide (Incheon, 41%; Mokpo, 45%). During fog event days at high tide, the dew-point depression was low (Incheon, 0.5℃; Mokpo, 0.4℃) and the relative humidity was high (Incheon, 97%; Mokpo, 98%). The wind speed was 2.4 m/s in Incheon and 2.0 m/s in Mokpo, and the main wind directions were west-southwesterly from Incheon and southwesterly from Mokpo. In the fog case study, tidal flats were covered with water before and after the fog started. During the fog period, both stations experienced negative air-sea temperature differences, low dew-point depression, and high relative humidity were maintained, with weak winds forming from the tidal flats to the shore.
Keywords
Tidal effect; Fog; West Sea; Coastal area; Tidal flat;
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