CAJ | 학술논문

应用美国国家大气研究中心(NCAR)研发的WRF(Weather Research and Forecasting)气象模式,研究海棠台风(2005)接近并登陆台湾岛的过程中的强度、结构的演变,以及地形强迫作用对台风的影响.对模拟结果的评估表明,在整个海棠台风(2005)模拟实验期间,WRF模式很好地抓住了台风海棠强风,低中心气压的高强度特征.对引起台风降水的中尺度系统的分析表明,一方面台风环流与中央山脉地形共同作用激发出垂直次级环流在降水区域产生强烈的上升运动;另一方面,水平风场源源不断给该地区输送暖湿空气,为对流发展提供充足的水汽.分析结果表明中央山脉地形与台风环流场之间的配置形势对台风降水有着重要的影响.
응용미국국가대기연구중심(NCAR)연발적WRF(Weather Research and Forecasting)기상모식,연구해당태풍(2005)접근병등륙태만도적과정중적강도、결구적연변,이급지형강박작용대태풍적영향.대모의결과적평고표명,재정개해당태풍(2005)모의실험기간,WRF모식흔호지조주료태풍해당강풍,저중심기압적고강도특정.대인기태풍강수적중척도계통적분석표명,일방면태풍배류여중앙산맥지형공동작용격발출수직차급배류재강수구역산생강렬적상승운동;령일방면,수평풍장원원불단급해지구수송난습공기,위대류발전제공충족적수기.분석결과표명중앙산맥지형여태풍배류장지간적배치형세대태풍강수유착중요적영향.
The Weather Research and Forecasting (WRF) model is used to study the evolution of typhoon Haitang and the topographic effect of Tainwan island. Although the variable track could not be reflected exactly, the model can capture Haitang's evolution of intensity and structure, especially its weakening during landfall, as well as precipitation distribution in Taiwan. Analysis of mesoscale system shows that the sub-vertical circulation which is inspired by the interaction of typhoon Haitang circulation with CMR terrain generates strong upward motion in precipitation area. And horizontal wind transports warm and moist air to this area and provides plenty of vapor for supporting convection development. The special correlation between typhoon Haitang circulation and CMR terrain plays an important part in typhoon Haitang precipitation.