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An Attempt of Estimation of Annual Fog Frequency over Gyeongsangbuk-do of Korea Using Weather Generator MM5
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  • Journal title : Environmental Engineering Research
  • Volume 14, Issue 2,  2009, pp.88-94
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2009.14.2.088
 Title & Authors
An Attempt of Estimation of Annual Fog Frequency over Gyeongsangbuk-do of Korea Using Weather Generator MM5
Kim, Do-Yong; Oh, Jai-Ho; Kim, Jin-Young; Sen, Pumendranath; Kim, Tae-Kook;
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In this study an attempt has been made to predict the annual foggy days over Gyeongsangbuk-do of Korea, using the regional mesoscale model (MM5). The annual meteorological conditions are simulated, and the annual and seasonal foggy days are predicted from the simulated results based on the seasonal and spatial information of the observed meteorological characteristics for fog occurrence such as wind speed, relative humidity, and temperature. Most of observed inland fog over Gyeongsangbuk-do occurs in autumn under the meteorological conditions such as a cairn, a high temperature range (above ), and a high relative humidity (above 85%). The predicted results show the various foggy days, about 1060 days, depending on the season and the site locations. The predicted annual foggy days at inland sites are about 3060 days, but at coastal sites, about 1020 days. Also, a higher frequency of fog occurrence at inland sites is shown in autumn (about 60% of the annual foggy days). Otherwise, a higher frequency of fog occurrence at coastal sites is shown in summer (about 60% of the annual foggy days), unlike the inland. These annual foggy days and their seasonal variations agree reasonably well with the observed values. It can be concluded that it is possible to predict the occurrence of annual or seasonal foggy days by MM5.
Annual and seasonal foggy days;Meteorological characteristics;Numerical prediction;MM5;
 Cited by
한반도 시공간적 바람정보 생산과 토지피복별 보정 알고리즘 개발,김도용;한경수;

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