CAJ | 학술논문

利用波作用理论对台风莫拉克登陆期间的降水进行诊断分析。结果表明：波作用密度异常能在一定程度上指示暴雨雨区发展移动，其异常值的空间分布能够反映雨区上空动力场和热力场的典型垂直结构特征。台风内中尺度波动与暴雨落区宏观上具有一定联系。为了详细研究台风内部的波动特征，利用WRF（Weather Research and Forecasting model）模式模拟的高分辨率资料对台风登陆过程中波动特征进行分析，低波数波动的传播主导强对流的非对称分布，2波在登陆初期对对流分布起着关键作用，中尺度波动中同时存在涡旋罗斯贝波以及重力惯性波的特征，对登陆期间涡旋混合的现象有重要作用。
이용파작용이론대태풍막랍극등륙기간적강수진행진단분석。결과표명：파작용밀도이상능재일정정도상지시폭우우구발전이동，기이상치적공간분포능구반영우구상공동력장화열력장적전형수직결구특정。태풍내중척도파동여폭우락구굉관상구유일정련계。위료상세연구태풍내부적파동특정，이용WRF（Weather Research and Forecasting model）모식모의적고분변솔자료대태풍등륙과정중파동특정진행분석，저파수파동적전파주도강대류적비대칭분포，2파재등륙초기대대류분포기착관건작용，중척도파동중동시존재와선라사패파이급중력관성파적특정，대등륙기간와선혼합적현상유중요작용。
General waveactivity density is used to diagnose the rainfall event of the landing of typhoon Morakot. The results show that the anomaly of the wave-activity density corresponds with the observed 6-h accumulated surface rainfall. High resolution simulation data is used to analyze the wave characteristics of the landing of typhoon Morakot, the low wavenumber structures that dominated the distribution of the asymmetric convection, and the amplitude of the two-wavenumber waves that occurred during landfall. The strong convergence and divergence of the asymmetric wind shows characteristics of gravity inertial waves. The mesoscale waves that induced mixing happened between the eye wall and the eye.