强台风“莫兰蒂”对厦门机场的影响过程分析
摘要
文章通过2016年14号强台风"莫兰蒂"对厦门机场影响过程分析,发现:此次台风的特点为强度强,尺度小,路径相对比较稳定,有潜在的多台风效应,造成的损失很严重。通过环流场分析显示台风的移动方向与西太平洋副热带高压的形状和强度变化密切相关,副高由纬向型向经向型的转变,台风路径发生西北偏西向西北方向移动,出现多时次向偏北方向跳跃。通过分析雷达回波显示台风的非对称结构是影响台风运动的重要因子,台风的南北向椭圆形结构和西侧眼壁附近最强的雷达反射率共同作用形成台风西北向的移动路径,雷达速度图像上显示台风中心最大速度出现二次模糊,并出现导致暴雨的"逆风区"结构。
In this paper, through the analysis of the influence process of the No. 14 strong typhoon "Moranti" on Xiamen Airport in 2016, it is found that the typhoon is characterized by strong intensity, small scale, relatively stable path, potential multi-typhoon effect and serious losses. The analysis of the circulation field shows that the moving direction of the typhoon is closely related to the shape and intensity of the western Pacific subtropical high. The subtropical high changes from zonal to meridional, and the typhoon path moves from northwest to northwest. There have been many jumps to the north. The analysis of radar echo shows that the asymmetric structure of typhoon is an important factor affecting the motion of typhoon. The north-south elliptical structure of typhoon and the strongest radar reflectivity near the west eye wall form the northwest moving path of typhoon. The radar velocity image shows that the maximum velocity of the typhoon center appears secondary blur, and the "headwind area" structure which leads to rainstorm appears.
In this paper, through the analysis of the influence process of the No. 14 strong typhoon "Moranti" on Xiamen Airport in 2016, it is found that the typhoon is characterized by strong intensity, small scale, relatively stable path, potential multi-typhoon effect and serious losses. The analysis of the circulation field shows that the moving direction of the typhoon is closely related to the shape and intensity of the western Pacific subtropical high. The subtropical high changes from zonal to meridional, and the typhoon path moves from northwest to northwest. There have been many jumps to the north. The analysis of radar echo shows that the asymmetric structure of typhoon is an important factor affecting the motion of typhoon. The north-south elliptical structure of typhoon and the strongest radar reflectivity near the west eye wall form the northwest moving path of typhoon. The radar velocity image shows that the maximum velocity of the typhoon center appears secondary blur, and the "headwind area" structure which leads to rainstorm appears.
引文
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[2]陈联寿,等.热带气旋动力学引论[M].北京:气象出版社,2002,12:122-127.
[3]寿绍文.中尺度天气原理和预报[M].北京:气象出版社,2009,2:181-190.
[4]俞小鼎,姚秀萍,等.多普勒天气雷达原理与业务应用[M].北京:气象出版社,2006:53-62.
[5]胡明宝,高太长,汤达章.多普勒天气雷达资料分析与应用[M].北京:解放军出版社,2000:99-118.
[6]李军霞,李培仁,汤达章.多普勒速度图像中逆风区的统计特征分析[A].第十五届全国云降水与人工影响天气科学会议论文集(Ⅱ)[C].2008:698-701.