August 17, 2025
以下英語內容節錄自 Science Quickly 逐字稿,Lumi Kuo翻譯。
本篇文章類別:#國際 #氣候 #冰川融化
如有錯誤,請不吝指教!
Feltman: And now for some climate news. Last Tuesday officials in Juneau, Alaska, confirmed a glacial outburst at Suicide Basin, a lake about 10 miles from the city center that’s attached to the Mendenhall Glacier. A glacial lake outburst flood, also known as a GLOF, is a rapid, unpredictable flood caused by the sudden drainage of a glacial lake.
現在來聽點氣候新聞。上週二,阿拉斯加朱諾(Juneau, Alaska)的官員證實自蘇塞德盆地(Suicide Basin)發生冰川噴發,冰河距離市中心約10公里,與門登霍爾冰川(Mendenhall Glacier)相連。冰川湖潰決洪水,也稱為 GLOF,是由於冰川湖突然乾涸而造成的快速、不可預測的洪水。
As glaciers melt—which is happening faster these days, thanks to climate change—some of their water forms so-called glacial lakes. They’re often dammed up naturally by glacial ice or by rocks and soil left behind as the glacier melts. But as meltwater levels rise, they can overflow the natural dam or even bust right through it. Suicide Basin has been a regular site of outburst floods since 2011, but the annual GLOFs have gotten worse each year since 2023.
隨著冰川融化—近期因氣候變遷,冰川融化地更快—部分的水形成了所謂的冰川湖。這些湖泊通常由冰川冰或冰川融化後所留下的岩石和土壤自然堵塞而成。
By last Wednesday morning, the Mendenhall River had entered the major flood stage. Floodwaters had receded by that same evening but only after reaching a peak of 16.65 feet. That’s more than half a foot higher than last year’s peak flooding, which broke previous records. Local officials said a set of temporary barriers placed along the river earlier this year, along with close monitoring and early warnings to the public, kept flooding of homes, schools and businesses to a minimum.
截至上週三早上,門登霍爾河已進入大洪水階段。洪水在當天晚上就已退去,但是是在達到最高水位16.65 英尺之後,這比去年打破紀錄的洪峰高出半英尺以上。當地官員表示,今年稍早在河邊設置了一系列臨時屏障,並密切監測並向公眾發出預警,將洪水對住家、學校、企業的影響降到最低。
The Alaska Beacon reported that no overnight rescues or emergency evacuations had been required and that flood damage was limited to one bridge and some seepage of water into homes and yards. In contrast, last year’s floods caused major damage to 64 homes, and some residents had to swim to safety or be rescued by boat.
據《阿拉斯加燈塔報》(Alaska Beacon)報導,此次洪水無需進行夜間救援或緊急疏散,僅對一座橋樑造成了損害,以及部分房屋和庭院有滲水的狀況。相較之下,去年的洪水對64棟房屋造成了嚴重損壞,一些居民不得不游至安全地帶或乘船救援。
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