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登陆北上热带气旋的特大暴雨落区探讨
Discussion on the Heavy Torrential Rian Area Caused by the Landing Northward Tropical Cyclone
【摘要】 由台风降水资料分析发现,登陆北上热带气旋在我国北方地区造成的特大暴雨,集中出现在华北平原西北部和山东~辽东半岛东南部两个相距较远的区域内。对比分析表明,这两个特大暴雨落区的形成,除地形增幅因素外,主要与前期副热带高压位置、热带气旋北上路径及物理量场的分布状况直接相关。同时,相应给出了判别上述两个特大暴雨落区的预报指标和方法。
【Abstract】 The spatial distribution of tropical cyclone precipitation shows that the heavy torrential rain caused by the landing northward tropcial cyclone occurs concentrately over the northwest of North China flatlands and the southeast of the Shandong-Liaodong penninsula. The comparative analysis was made and the result shows that the formation of the two heavy torrential rain areas aparted so far away were mainly realated to the position of the subtropical high in the preceding stage, the track of the landing northward tropical cyclone and the distribution of the physics fields except for the orography effect. At last, the indices and methods for forecasting these two types of heavy torrential rain were given correspondingly.
【Key words】 landing northward; tropical cyclone; heavy torrential rain; rain area;
- 【文献出处】 气象 ,METEOROLOGICAL MONTHLY , 编辑部邮箱 ,1998年11期
- 【分类号】P458.121.1
- 【被引频次】36
- 【下载频次】166