Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Improvements in the Simulation of Sea Surface Wind Over the Complex Coastal Area-II: Data Assimilation Using LAPS

복잡 해안지역 해상풍 모의의 정확도 개선-II: LAPS를 사용한 자료동화

  • Bae, Joo-Hyun (Department of Atmospheric Sciences, Pusan National University) ;
  • Kim, Yoo-Keun (Department of Atmospheric Sciences, Pusan National University) ;
  • Jeong, Ju-Hee (Department of Atmospheric Sciences, Pusan National University) ;
  • Kweon, Ji-Hye (Department of Atmospheric Sciences, Pusan National University) ;
  • Seo, Jang-Won (Marine Meteorology & Earthquake Research Laboratory, Meteorological Research Institute) ;
  • Kim, Yong-Sang (Information Management Division, Korea Meteorological Administration)
  • Published : 2006.08.01
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Abstract

We focus on the improvement of accuracy of sea surface wind over complex coastal area doling the warm season. Local Analysis Prediction System (LAPS) was used to improve the initial values in Mesoscale Meteorological model (MM5). During the clear summer days with weak wind speed, sea surface wind simulated with LAPS was compared with the case without LAPS. The results of modeling with LAPS has a good agreement mesoscale circulation such as mountain and valley winds on land and in case of modeling without LAPS, wind speed overestimated over the sea in the daytime. And the results of simulation with LAPS indicated similar wind speed values to observational data over the sea under influence of data assimilation using BUOY, QuikSCAT, and AMEBAS. The present study suggests that MM5 modelling with LAPS showed more improved results than that of without LAPS to simulate sea surface wind over the complex coastal area.

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References

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