• Title/Summary/Keyword: MUKLIMO_3

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

  • Lee, SukJun;choi, YongHan;Jung, JeaHee;Won, MyoungSoo;Lim, Gyu-Ho
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.17 no.2
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    • pp.165-172
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    • 2015
  • The extreme weather conditions become frequent and severe with global warming. To prevent and cope forest disaster like a forest fire, we need an accurate micrometeorological prediction system for mountainous regions. This study addressed the forest fires occurred at Bonghwa and Gangneung in March, 2013. We constructed and optimized the prediction system that were required to interpret and simulate the forest micrometeorology. At first, we examined WRF physical sensitivity. Subsequently, KMA AWS observation data were assimilated using three-dimensional variation data assimilation method. The effectiveness of the assimilation was examined by using AWS observations enhanced with the Forest Research Institute observations. Finally, The 100 meters spatial resolution wind data were obtained by using the MUKLIMO for the given wind vector from WRF.

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

  • Min Kyung-Duck;Yoon Ji-Won;Ahn Kwang-Deuk
    • Journal of Environmental Science International
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    • v.14 no.3
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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.

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

  • Kim, Dae-Wuk;Jung, Eung-Ho;Ryu, Ji-Won;Park, Ji-Hye
    • Journal of the Korean housing association
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    • v.18 no.2
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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.