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Back尼泊尔冰川崩塌引发泥石流 重创中尼吉隆口岸
尼泊尔冰川崩塌引发泥石流 重创中尼吉隆口岸
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中国新闻网1 hour agoWorld2 min readChina

尼泊尔冰川崩塌引发泥石流 重创中尼吉隆口岸

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8月26日10时30分许,尼泊尔境内错坚河上游冰川崩塌引发泥石流,垂直高差近3300米,平均流速每秒50米,仅用时7分钟冲击吉隆口岸,造成重大人员伤亡和失联,并形成堰塞湖,下游区域受影响达数十公里。

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Why It Matters

吉隆口岸位于吉隆藏布与东林藏布两条河流交汇处,地形陡峭,历来是中尼重要的陆路通道。

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8月26日10时30分许,尼泊尔一侧发生泥石流灾害,造成西藏日喀则市吉隆县吉隆口岸重大人员伤亡、失联。这场泥石流到底是如何发生的?为什么有如此强的破坏力?来看中央广播电视总台制作的全过程动画演示。

吉隆口岸地处吉隆藏布与东林藏布两条河流交汇处,地形陡峭。

此次灾害为跨境链式灾害,源头位于尼泊尔境内高程约5140米的错坚河上游冰川,冰崩总面积62万平方米。冰川整体崩塌后,高速裹挟铲刮沟道松散堆积物,汇入中尼界河郭巴峡曲,向西汇入东林藏布并演化成强冲击力泥石流,最终重创吉隆口岸及下游区域。

此次泥石流因超大高差与超高流速形成极强破坏力,20公里运动路径内垂直高差近3300米,从冰川崩塌到泥石流冲击吉隆口岸仅用时7分钟,平均流速达每秒50米,群众几乎没有避险反应时间,灾害规模、冲击力度以及伤亡情况极为严重。

高速泥石流冲击了吉隆藏布之后,分两个方向:一路向上游方向,影响距离将近三公里。另一路则沿着吉隆藏布向下游,往尼泊尔境内持续运动,影响距离数十公里。此外,灾区已形成堰塞湖。专家提示,一旦发现上游洪水下泄,需向斜坡方向撤离。(央视新闻客户端)

What to Watch

AI outlook — possibilities, not facts

  • 专家将监测堰塞湖水位变化,评估决堤风险并制定应对预案

    Very likely · Within days

Open Questions

  • 目前具体的人员伤亡和失联人数是多少?
  • 堰塞湖是否存在决堤风险?
  • 救援和善后工作的最新进展如何?

Related Topics

This article was originally published by 中国新闻网.

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