「聖嬰」攻陷北極 融冰冷空氣凍僵北半球 - 颱風討論

By Bennie
at 2016-01-25T09:49
at 2016-01-25T09:49
Table of Contents
【on.cc東網專訊】 2015年出現史上最強的聖嬰現象,全球升溫不可逆轉,在剛過去的聖
誕節,不但南半球,連北半球亦異常地迎來了一個溫暖聖誕。褪色冬日聖誕過後,正當人
們寫意地享受新年伊始的暖意之際,極端寒潮卻不期而至,席捲大半個北半球。今日美國
就被暴雪覆蓋,日韓均急速降溫,連南部亦下雪。有分析認為,冷熱天氣的極端變化,是
由於聖嬰現象的暖空氣「攻陷」北極,逼得極地原本的寒冷氣團傾瀉南下,將北半球變成
一片雪國。
去年12月,於大西洋形成的颶風一路向北推進,挾帶了低氣壓地區的暖空氣。該股溫暖氣
流掠過英倫、美國及冰島,到達寒冷的北極地區上空。來勢洶洶、氣勢如虹的暖空氣源源
不絕地輸入北極地區,連當地的冷空氣也要退避三舍,不敢攖其鋒。
此時,北極地區的氣溫突由攝氏零下30度升至1度。這是有記錄以來第二次,北極地區的
氣溫高於攝氏0度。雖然為時短暫,但由於外界暖空氣的大量入侵,令原本穩定的極地渦
旋陡然分裂,形成了多股南下的寒流。美國東部首當其衝,十數個州分迎來了暴風雪、龍
捲風及強風等極端天氣。北半球中低緯度地區的和煦暖冬,霎時被朔風撲臉的嚴冬所取代
,連一向四季和暖的沖繩群島都有降雪的可能。此時,真正的冬季於此時才姍姍來遲。
從大西洋形成的風暴,就如一次劇烈的震盪,發揮氣流波動傳遞作用,把暖空氣送往北極
。有專家認為,聖嬰現象是暖空氣增強的元兇。暖空氣持續北上的後果堪虞,會加速北極
地區的冰塊融化及海平面上升,淹沒低窪地方;甚或威脅人類及物種的生存。因此,《巴
黎協議》中的抑制全球暖化協議,便成了簽約國迫在眉睫的處理項目。氣溫劇變及北極增
溫,已為沉痾已久的地球敲響了刻不容緩的警號。
http://goo.gl/KNMZLJ
編輯文章 (^Z/F1)說明 (^P/^G)插入符號/範本 (^X/^Q)離開 ║插入│aipr║ 22:
--
誕節,不但南半球,連北半球亦異常地迎來了一個溫暖聖誕。褪色冬日聖誕過後,正當人
們寫意地享受新年伊始的暖意之際,極端寒潮卻不期而至,席捲大半個北半球。今日美國
就被暴雪覆蓋,日韓均急速降溫,連南部亦下雪。有分析認為,冷熱天氣的極端變化,是
由於聖嬰現象的暖空氣「攻陷」北極,逼得極地原本的寒冷氣團傾瀉南下,將北半球變成
一片雪國。
去年12月,於大西洋形成的颶風一路向北推進,挾帶了低氣壓地區的暖空氣。該股溫暖氣
流掠過英倫、美國及冰島,到達寒冷的北極地區上空。來勢洶洶、氣勢如虹的暖空氣源源
不絕地輸入北極地區,連當地的冷空氣也要退避三舍,不敢攖其鋒。
此時,北極地區的氣溫突由攝氏零下30度升至1度。這是有記錄以來第二次,北極地區的
氣溫高於攝氏0度。雖然為時短暫,但由於外界暖空氣的大量入侵,令原本穩定的極地渦
旋陡然分裂,形成了多股南下的寒流。美國東部首當其衝,十數個州分迎來了暴風雪、龍
捲風及強風等極端天氣。北半球中低緯度地區的和煦暖冬,霎時被朔風撲臉的嚴冬所取代
,連一向四季和暖的沖繩群島都有降雪的可能。此時,真正的冬季於此時才姍姍來遲。
從大西洋形成的風暴,就如一次劇烈的震盪,發揮氣流波動傳遞作用,把暖空氣送往北極
。有專家認為,聖嬰現象是暖空氣增強的元兇。暖空氣持續北上的後果堪虞,會加速北極
地區的冰塊融化及海平面上升,淹沒低窪地方;甚或威脅人類及物種的生存。因此,《巴
黎協議》中的抑制全球暖化協議,便成了簽約國迫在眉睫的處理項目。氣溫劇變及北極增
溫,已為沉痾已久的地球敲響了刻不容緩的警號。
http://goo.gl/KNMZLJ
編輯文章 (^Z/F1)說明 (^P/^G)插入符號/範本 (^X/^Q)離開 ║插入│aipr║ 22:
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