연안지역 지형적 특성에 따른 윈드프로파일러 자료의 자료동화 효과 분석

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정주희;노소영;송상근;김유근
Jeong, Ju-Hee;Lo, So-Young;Song, Sang-Keun;Kim, Yoo-Keun

  • 투고 : 2009.09.16
  • 심사 : 2010.04.21
  • 발행 : 2010.06.30

초록

The effects of high-resolution wind profiler (HWP) data on the wind distributions were evaluated in two different coastal areas during the study period (23-26 August, 2007), indicating weak-gradient flows. The analysis was performed using the Weather Research and Forecasting (WRF) model coupled with a three-dimensional variational (3DVAR) data assimilation system. For the comparison purpose, two coastal regions were selected as: a southwestern coastal (SWC) region characterized by a complex shoreline and a eastern coastal (EC) region surrounding a simple coastline and high mountains. The influence of data assimilation using the HWP data on the wind distributions in the SWC region was moderately higher than that of the EC region. In comparison between the wind speed and direction in the two coastal areas, the application of the HWP data contributed to improvement of the wind direction distribution in the SWC region and the wind strength in the EC region, respectively. This study suggests that the application of the HWP data exerts a large impact on the change in wind distributions over the sea and thus can contribute to the solution to lack of satellite and buoy data with their observational uncertainty.

키워드

Wind profiler data;Different coastal areas;Data assimilation;Wind distributions;WRF;3DVAR

참고문헌

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피인용 문헌

  1. 1. Local Wind Field Simulation over Coastal Areas Using Windprofiler Data vol.22, pp.2, 2016, doi:10.5322/JES.2010.19.6.689
  2. 2. Sensitivity Analysis of the WRF Model according to the Impact of Nudging for Improvement of Ozone Prediction vol.25, pp.5, 2016, doi:10.5322/JES.2010.19.6.689