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A WRF Modeling Study on the Effects of Land Use Changes on Fog Off the West Coast of the Korean Peninsula

  • Chang Ki KimEmail author
  • Seong Soo Yum
  • Hyun-Goo Kim
  • Yong-Heack Kang
Article
  • 29 Downloads

Abstract

This study investigates, for the purpose of fog forecasting, the impacts of topography and land use changes on the characteristics of turbulence that directly contribute to the formation and dissipation of fog off the west coast of the Korean Peninsula using the Weather Research and Forecasting model version 3.5.1. During the investigation period, there are 59 coastal ground fog and 29 sea fog events. Local meteorological characteristics of coastal ground fog were similar to those of radiation fog typically seen over the land surface since the reclaimed island was constructed. After the sun rises, relative humidity over the land surface decreases rapidly—within a couple of hours—due to surface heating, which is controlled directly by shortwave radiation. Over the sea surface, however, the sea fog remains, with the relative humidity higher than 95% even during the daytime. For two selected cases, topography and land use were modified to identify turbulence characteristics through numerical modeling. This modification contributed to better forecasting the formation and dissipation of fog by changing characteristics of sensible and latent heat flux in the land surface model and then planetary boundary layer over the reclaimed island.

Keywords

Topography land use weather research and forecasting model turbulence coastal ground fog sea fog 

Notes

Acknowledgements

This work was conducted under framework of the research and development program of the Korea Institute of Energy Research (B9-2414).

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Chang Ki Kim
    • 1
    Email author
  • Seong Soo Yum
    • 2
  • Hyun-Goo Kim
    • 1
  • Yong-Heack Kang
    • 1
  1. 1.New and Renewable Energy Resource & Policy CenterKorea Institute of Energy ResearchDaejeonSouth Korea
  2. 2.Department of Atmospheric SciencesYonsei UniversitySeoulSouth Korea

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