• 제목/요약/키워드: MUKLIMO_3

검색결과 3건 처리시간 0.021초

산림 미기상 해석을 위한 최적모델 개발 (Development of Optimal Modeling System for Analyzing Mountain Micrometeorology)

  • 이석준;최용한;정재희;원명수;임규호
    • 한국농림기상학회지
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    • 제17권2호
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    • pp.165-172
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    • 2015
  • 지구 온난화와 연관된 기후 변화는 악기상 현상의 발생 빈도 및 강도를 증가시킨다. 따라서 산불, 산사태 등 산림 재해의 예방 및 대응을 위한 정밀한 산림 미기상 예측 시스템의 개발이 필요하다. 본 연구에서는 2013년 3월 봉화와 강릉에서 발생한 산불을 WRF와, 3D-var로 모의 하였다. WRF에서 나온 Output 자료를 이용하여 MUKLIMO 모형을 기반으로 산림 미기상 해석 및 모의를 위한 예측 시스템의 구축과 최적화를 이루었다. 이를 위해 3차원 변분 자료 동화 방법을 사용하여 기상청 AWS 관측 자료를 동화하였고, WRF의 예보에 MUKLIMO 모형을 결합하여 100m의 고해상도 바람장을 산출하였다. 자료동화를 수행하지 않은 CNTL 실험에 비해 자료 동화를 수행한 KMA 혹은 KMA_KFRI실험의 모의 결과가 관측과 가까워짐을 확인하였다. MUKLIMO에서 산출된 바람장 자료를 이용하여 보다 정확한 산림 미기상 예측 시스템을 구축할 수 있었다.

경북대 캠퍼스 내 대기환경 및 미규모 모델(MUKLIMO)을 이용한 바람장 모의 연구 (A Study on the Atmospheric Environment and Simulations of Wind Field using MUKLIMO at the KNU Campus)

  • 민경덕;윤지원;안광득
    • 한국환경과학회지
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    • 제14권3호
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    • pp.311-325
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    • 2005
  • Elements of atmospheric environment, temperature, humidity and wind, at the compus of KNU(Kyungpook National University) were investigated by the observations. The observed data were compared with those of DWS (Daegu Weather Station). The simulations of wind field and dispersions of polluted gases were conducted by MUKLIMO under the various conditions. The results show that the atmospheric environment of KNU are suitable but the campus does not play role as a heat sink in the city. The simulations of wind field show the air flows and wind channels in the campus clearly. The exhausted gases by motor vehicles on the northside street of campus affect very much to the campus with $NW(300^{\circ})$ wind. The running cars in the campus are also pollute much on the campus with the various wind directions. The characteristics of environmental conditions, various meteorological fields, wind channels, and dispersion of exhausted gases at the campus of KNU were understood quantitatively in the study.

지역기후기능을 고려한 주거단지계획기법에 관한 연구 - 바람길을 중심으로 - (A Study on Method of Planning for a Residential Unit under Consideration of Local Climate - Focused on Wind Corridor -)

  • 김태욱;정응호;류지원;박지혜
    • 한국주거학회논문집
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    • 제18권2호
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    • pp.105-112
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    • 2007
  • This research has been implemented based on the area of #369 Dowon-dong, Dalseo-gu, Dae-gu which is considered as a place with satisfactory characteristics for the flow of fresh air into the city. Simulations of the target area both prior to the development plan and after apartment complex blocking were analyzed in regard to blocking planning and pilotis based on the main direction of wind, $90^{\circ}$ (east wind) and $180^{\circ}$ (south wind). In addition, congested wind corridor flow in the target place was identified through a pollution spread simulation according to the wind corridor. Therefore, the flow of wind in the one area is affected by the blocking of the complex and the main direction of the wind. Also blocking, in regard of pilotis, provides a better flow of wind. This study was implemented based on wind formation by apartment complex planning, so further study on the other factors affecting the flow of a wind corridor along with block planning and pilotis need to be carried out. Sustainable environmental factors through analysis of the environmental factors have to be analyzed. Moreover, building and complementing fundamental resources and systematic devices should be supported.