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산불 발화에 따른 하층 대기 순환장 변화에 관한 수치 실험 KCI 등재

Numerical Experiment on the Variation of Atmospheric Circulation due to Wild Fire

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한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

In order to clarify the impact of wildfire and its thermal forcing on atmospheric wind and temperature patterns, several numerical experiments were carried out using three dimensional atmospheric dynamic model WRF with wildfire parametrization module SFIRE.
Since wind can accelerate fire spread speed, the moving speed of fireline is faster than its initial values, and the fireline tends to move the northeast, because of the wind direction and absolute vorticity conservation law associated with driving force induced by terrain. In comparison with non-fire case, the hydraulic jump that often occurs over downwind side of mountain became weak due to huge heat flux originated by surface wildfire and wind pattern over downwind side of mountain tends to vary asymmetrically with time passing. Therefore temporal variation of wind pattern should be catched to prevent the risk of widfire.

목차
Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 수치모형
  2.2. 수치 실험 설계
 3. 결과 및 고찰
  3.1. 화재에 따른 대기 온도장 변동 특성
  3.2. 화재에 따른 바람장의 변동 특성
  3.3. 화재확산에 따른 지표 풍속의 시간 변화
 4. 결 론
 참 고 문 헌
저자
  • 이화운(부산대학교 지구환경시스템학부) | Hwa-Woon Lee (Division of Earth Environmental System, Pusan National University)
  • 탁성훈(부산대학교 지구환경시스템학부) | Sung-Hoon Tak (Division of Earth Environmental System, Pusan National University) Corresponding author
  • 이순환(부산대학교 환경연구원) | Soon-Hwan Lee (Institude of Environmental Studies, Pusan National University)