江西省吉安市遂川县高坪镇明坑村9月5日凌晨发生泥石流地质灾害12。截至灾害发生后，造成2人罹难、10人失联2。
台风"沙德尔"的特殊路径和地理因素共同导致了这场内陆灾情。气象专家指出，台风"沙德尔"残涡长时间在华南西部滞留，水汽通道没有断开，源源不断为灾区输送水汽12。与此同时，遂川县地处罗霄山脉南段东麓，山体陡峭，位于迎风坡位置，地形强制抬升放大降雨强度12。在台风残涡长期滞留与地形强增幅的双重作用下，遂川出现了极端持续性暴雨1。
防灾部门提醒，内陆台风残涡灾害主要表现为持续性暴雨，虽然大风不明显，但滞后风险突出1。江西中南部累计雨量大、暴雨落区高度重叠，地质灾害和中小河流洪水风险仍较高1。
A mudslide and slope collapse occurred in Suichuan County in Jiangxi Province's inland mountainous region on the morning of September 5th, resulting in casualties and missing persons.12 At least 2 people have been confirmed dead and 10 remain unaccounted for in the disaster affecting Gaoping Town's Mingkeng Village.2
The extreme impact of Typhoon Saudel on this inland location stems from a combination of atmospheric and geographical factors. Rather than making a rapid passage over the region, Typhoon Saudel's remnant circulation stalled for an extended period over southwestern China, maintaining an open moisture channel that continued supplying water vapor to the area.2 Suichuan County's positioning on the eastern windward slope of the southern Luoxiao Mountains, with its steep terrain, amplified the rainfall intensity through orographic lifting.12 This topographical forcing directly magnified precipitation rates, transforming the typhoon's effects from typical strong winds into sustained, intense rainfall.12
The accumulated rainfall and overlapping heavy precipitation zones across central and southern Jiangxi have created ongoing risks of geological disasters and flash flooding in smaller waterways.1 Forecasters have emphasized the need for heightened vigilance against cumulative rainfall effects and secondary hazards that can develop after initial storm passage.1
评论
还没有评论，欢迎留下第一条。