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.

Abstract
 1. 서 론
 2. 대상지역
 3. 자료 및 방법
  3.1. 모델개요
  3.2. 자료 및 실험설계
 4. 결 과
  4.1. 초기장 개선효과
  4.2. 모델링 결과분석
 5. 결 론
 참 고 문 헌

• 정주희(부산대학교 지구환경시스템학부) | Ju-Hee Jeong (Division of Earth Environmental System, Pusan National University)
• 노소영(부산대학교 지구환경시스템학부) | Soyoung Lo (Division of Earth Environmental System, Pusan National University)
• 송상근(부산대학교 지구환경시스템학부) | Sang-Keun Song (Division of Earth Environmental System, Pusan National University)
• 김유근(부산대학교 지구환경시스템학부) | Yoo-Keun Kim (Division of Earth Environmental System, Pusan National University) Corresponding Author