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July 22, 2021
Uncategorized

美西部遭遇20年來最旱天氣 胡佛大壩水位達歷史最低

近幾個月以來,美西部遭遇了史無前例的乾旱天氣。持續的乾旱不僅導致當地水庫水位下降到了歷史最低水平,民眾的生產生活也因乾旱受到了嚴重威脅。

美乾旱監測中心的數據顯示,全美目前約有40%的地區正在經歷乾旱的狀況。而在西部,約有88%的地區處於乾旱之中,加州、亞利桑那州、猶他州和內華達州的旱情比其他西部州更為嚴重,部分地區達到了異常乾旱的程度。

有線電視新聞網稱,全美過去20年里,乾旱從未有現在這般嚴重。

胡佛大壩水位歷史最低威脅當地用電安全,目前水位比最高水位低了45.72米,達到歷史最低水平。作為該地區重要的水利設施,胡佛大壩為亞利桑那州、加州和內華達州超100萬居民提供電力服務。

數據顯示,低水位使得大壩的發電機組發電量減少了25%。科羅拉多河負責人表示,雖然大壩將繼續運作,但預計當地用電將首次出現短缺。

此外,加州水資源部發言人巴克利表示,持續的乾旱和創紀錄的高溫,已將加州北部奧羅維爾湖的水資源消耗到令人震驚的水平,這可能會迫使愛德華海厄特水電站自1967年啟用以來首次關閉。

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