结果表明，本次大暴雨是0418号热带气旋在福建登陆后，其北伸倒槽与西风带弱冷空气结合所产生的热带气旋远距离暴雨。
The result shows that the heavy storm is caused by the interaction between 0418 tropical cyclone trough landed in Fujian Province and a weak cool front in the westerlies.
风暴完全并入西风槽后，变性后的温带气旋再次加强与平流层高位涡的向下输送有关。
After storm's entering westerly trough, the subtropical cyclone's reintensification was related to the high potential vortex's downward transmission from stratosphere.
以一个在陆上长久维持并最终演变成温带气旋的登陆台风“麦莎”为研究对象，通过对其北上变性过程的分析发现，台风与中高纬西风槽的相互作用使得冷空气侵入是其变性加强的原因。
Through the analysis, it is shown that the Matsa s extratropical transition and the re-intensification are due to the intrusion of cold air from the upper-level trough into the typhoons circulation.
热带气旋北上时，存在第二类间接作用，不仅在东风急流下游能出现倒槽暴雨，还有利于热带气旋下游的副热带高压另一侧产生特大降水。
Second indirect effect is existed when tropical cyclone moves toward the north. The heavy rain-fall of inversion trough has not only arisen in downstream of easter…
热带气旋北上时，存在第二类间接作用，不仅在东风急流下游能出现倒槽暴雨，还有利于热带气旋下游的副热带高压另一侧产生特大降水。
Second indirect effect is existed when tropical cyclone moves toward the north. The heavy rain-fall of inversion trough has not only arisen in downstream of easter…
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