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A Study on Prediction System of Sea Fogs in the East Sea  

서장원 (기상연구소 해양기상지진연구실)
오희진 (기상연구소 해양기상지진연구실)
안중배 (부산대학교 대기과학과)
윤용훈 (기상연구소 해양기상지진연구실)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.8, no.2, 2003 , pp. 121-131 More about this Journal
Abstract
We have found that the east coast of Korea has had few sea fogs on January, February, November and December for the past 20 years by the analysis of monthly fog frequency and duration time. These phenomena appear to relate to the topographical characteristics of which the Taebaek Mountains descends toward the east to bar the radiation fog. On the other hand, the cause of occurring the spring and summer fog which has 90% of the whole frequency is divided into three cases. The first is the steam fog caused by the advection of the northeast cold air current on the East Sea due to the extension of Okhotsk High. The second is the advection fog caused by cooling and saturation of warm airmass advected on cold sea surface. And the last is the frontal fog caused by the supply of enough vapor due to the movement of low-pressure system and the advection of cold air behind a cold front. While, we simulate the sea fog for the period of the case studies by implementing fog prediction system(DUT-METRI) that makes it possible to forecast the fog in the vertical section of neighborhood of the East Sea and to predict the sea surface wind, relative humidity, ceiling height, visibility etc. Finally we verified this result by satellite image.
Keywords
Sea Fogs; Steam Fogs; Advection Fogs; Frontal fogs, Fog Prediction System;
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