CAJ | 학술논문

受城市化、探测环境变化等人为因素影响，部分气象站风速序列存在不均一性，在使用这类气象站的风速资料时必须进行订正。本文以东山气象站为例，应用测站受建筑物影响前后各5a的风速资料及探测环境历史沿革资料，利用计算流体力学方法（CFD）研究建筑物对气象站测风数据的影响。结果表明：建筑物与测风杆的相对位置不同，建筑物对测风的影响程度也不同，测站北面建筑物是影响该站偏北风风速观测的主要因素；研究不同风速下建筑的影响，可得模拟结果与输入风速间呈线性关系，由此建立风速订正关系式，订正后基本消除了建筑物对N方位风速的影响；订正受建筑物影响较小的NNE方位风速需考虑其他障碍物的影响。通过试验验证了CFD方法可用于定量评估建筑物对测风的影响，从而可重建受建筑物影响台站的风速序列。
수성시화、탐측배경변화등인위인소영향，부분기상참풍속서렬존재불균일성，재사용저류기상참적풍속자료시필수진행정정。본문이동산기상참위례，응용측참수건축물영향전후각5a적풍속자료급탐측배경역사연혁자료，이용계산류체역학방법（CFD）연구건축물대기상참측풍수거적영향。결과표명：건축물여측풍간적상대위치불동，건축물대측풍적영향정도야불동，측참북면건축물시영향해참편북풍풍속관측적주요인소；연구불동풍속하건축적영향，가득모의결과여수입풍속간정선성관계，유차건립풍속정정관계식，정정후기본소제료건축물대N방위풍속적영향；정정수건축물영향교소적NNE방위풍속수고필기타장애물적영향。통과시험험증료CFD방법가용우정량평고건축물대측풍적영향，종이가중건수건축물영향태참적풍속서렬。
Human factors such as urbanization and changes of observing environments cause inhomogeneity of wind speed series at some meteorological stations,so corrections need to be done when using this kind of wind speed data.Using the Dongshan meteorological station as a case study,the influence of buildings on wind speed da-ta was analyzed by a CFD method in terms of five year wind speed data before and after the building erected,and the data of the historical evolution of observing environments.The results indicate that the influence of buildings on wind speed varies with the relative positions of wind measurement mast.The buildings in the north side of the sta-tion influence northerly wind speed significantly.According to the influence of buildings on the different wind speed,it can be learnt that the relationship between simulated and observed wind speeds is a linear correlation,so a correction formula of wind is established by this correlation relationship.The influence of buildings on north wind speed is generally eliminated after corrections.The other obstacles should be taken into account when revising wind speed of NNE direction because of light influence of buildings on NNE wind.It is proved that CFD could be ap-plied for quantitative evaluations of influence of buildings on wind speed,thus wind speed series of station could be rebuilt.