今日受東北季風持續影響,水氣稍微增多,北部、東半部、南部地區及中部山區有降雨機率。氣象署預報指出,桃園以北、東半部地區及恆春半島有局部短暫雨。溫度方面,各地早晚偏涼,低溫約16至19度,北部及宜蘭、花蓮白天高溫約20至22度,中南部及台東高溫約23至25度。 前氣象局長鄭明典昨日在臉書發文,公布一張「平流層溫度預報圖」,揭露北極圈上方約23公里高空正出現不尋常的大氣現象。根據觀測資料顯示,目前有兩團相對暖和冷的空氣在北極上空對峙,形狀酷似太極圖。 鄭明典解釋,現階段應為極渦發展時期。正常情況下,極區上空因日照減少導致空氣冷卻,冷卻空氣下沉後,周邊空氣內縮補充,自然形成逆時針環流,即為極渦。冬季前期通常是單一逆時針旋轉的冷空氣盤踞在北極圈上空。 然而目前極渦發展區域卻出現暖空氣,此現象即為「極區平流層暖變」。鄭明典強調,這種暖變現象發生時間如此提早實屬罕見。過去兩週內,該區域氣溫快速上升近20度,這類現象通常發生在2月下旬,本次提早出現相當特殊。 鄭明典特別提及2016年初的超強寒流事件。當時台灣出現百年罕見低溫,追溯原因正是2015年底發生類似的偏早平流層暖變現象。該次暖變向下影響,引發超強振幅的負北極振盪,主要冷空氣外流方向恰好對準亞洲地區。 針對今年冬季展望,鄭明典分析,極渦偏弱通常對應韓國、日本偏冷的冬季,與台灣冬季氣溫相關性並不高,台灣過去僅偶爾被掃到邊緣。雖然2016年低溫在百年紀錄中並非最極端,但在全球暖化背景下,再度發生機率很低。 氣象署預報未來一週天氣,週五東北季風持續影響,北部及宜花地區天氣偏涼,水氣減少,各地多為多雲到晴。週末東北季風減弱,白天氣溫回升,西半部日夜溫差較大。下週三另一波東北季風南下,迎風面轉雨,北台灣氣溫將明顯下降。 (資料來源:威傳媒新聞-WinNews) 延伸閱讀: 2025年過年習俗一覽表,送神到初五開工習俗懶人包 創新永續國際農業技術 聚集臺南深化產業交流 東北季風發威!北台灣轉濕涼「低溫下探11度」 今日受東北季風持續影響,水氣稍微增多,北部、東半部、南部地區及中部山區有降雨機率。氣象署預報指出,桃園以北、東半部地區及恆春半島有局部短暫雨。溫度方面,各地早晚偏涼,低溫約16至19度,北部及宜蘭、花蓮白天高溫約20至22度,中南部及台東高溫約23至25度。 前氣象局長鄭明典昨日在臉書發文,公布一張「平流層溫度預報圖」,揭露北極圈上方約23公里高空正出現不尋常的大氣現象。根據觀測資料顯示,目前有兩團相對暖和冷的空氣在北極上空對峙,形狀酷似太極圖。 鄭明典解釋,現階段應為極渦發展時期。正常情況下,極區上空因日照減少導致空氣冷卻,冷卻空氣下沉後,周邊空氣內縮補充,自然形成逆時針環流,即為極渦。冬季前期通常是單一逆時針旋轉的冷空氣盤踞在北極圈上空。 然而目前極渦發展區域卻出現暖空氣,此現象即為「極區平流層暖變」。鄭明典強調,這種暖變現象發生時間如此提早實屬罕見。過去兩週內,該區域氣溫快速上升近20度,這類現象通常發生在2月下旬,本次提早出現相當特殊。 鄭明典特別提及2016年初的超強寒流事件。當時台灣出現百年罕見低溫,追溯原因正是2015年底發生類似的偏早平流層暖變現象。該次暖變向下影響,引發超強振幅的負北極振盪,主要冷空氣外流方向恰好對準亞洲地區。 針對今年冬季展望,鄭明典分析,極渦偏弱通常對應韓國、日本偏冷的冬季,與台灣冬季氣溫相關性並不高,台灣過去僅偶爾被掃到邊緣。雖然2016年低溫在百年紀錄中並非最極端,但在全球暖化背景下,再度發生機率很低。 氣象署預報未來一週天氣,週五東北季風持續影響,北部及宜花地區天氣偏涼,水氣減少,各地多為多雲到晴。週末東北季風減弱,白天氣溫回升,西半部日夜溫差較大。下週三另一波東北季風南下,迎風面轉雨,北台灣氣溫將明顯下降。 (資料來源:威傳媒新聞-WinNews) 延伸閱讀: 2025年過年習俗一覽表,送神到初五開工習俗懶人包 創新永續國際農業技術 聚集臺南深化產業交流 東北季風發威!北台灣轉濕涼「低溫下探11度」

今年冬天霸王級寒流重現?鄭明典曝罕見巧合

2025/11/27 16:02

今日受東北季風持續影響,水氣稍微增多,北部、東半部、南部地區及中部山區有降雨機率。氣象署預報指出,桃園以北、東半部地區及恆春半島有局部短暫雨。溫度方面,各地早晚偏涼,低溫約16至19度,北部及宜蘭、花蓮白天高溫約20至22度,中南部及台東高溫約23至25度。

前氣象局長鄭明典昨日在臉書發文,公布一張「平流層溫度預報圖」,揭露北極圈上方約23公里高空正出現不尋常的大氣現象。根據觀測資料顯示,目前有兩團相對暖和冷的空氣在北極上空對峙,形狀酷似太極圖。

鄭明典解釋,現階段應為極渦發展時期。正常情況下,極區上空因日照減少導致空氣冷卻,冷卻空氣下沉後,周邊空氣內縮補充,自然形成逆時針環流,即為極渦。冬季前期通常是單一逆時針旋轉的冷空氣盤踞在北極圈上空。

然而目前極渦發展區域卻出現暖空氣,此現象即為「極區平流層暖變」。鄭明典強調,這種暖變現象發生時間如此提早實屬罕見。過去兩週內,該區域氣溫快速上升近20度,這類現象通常發生在2月下旬,本次提早出現相當特殊。

鄭明典特別提及2016年初的超強寒流事件。當時台灣出現百年罕見低溫,追溯原因正是2015年底發生類似的偏早平流層暖變現象。該次暖變向下影響,引發超強振幅的負北極振盪,主要冷空氣外流方向恰好對準亞洲地區。

針對今年冬季展望,鄭明典分析,極渦偏弱通常對應韓國、日本偏冷的冬季,與台灣冬季氣溫相關性並不高,台灣過去僅偶爾被掃到邊緣。雖然2016年低溫在百年紀錄中並非最極端,但在全球暖化背景下,再度發生機率很低。

氣象署預報未來一週天氣,週五東北季風持續影響,北部及宜花地區天氣偏涼,水氣減少,各地多為多雲到晴。週末東北季風減弱,白天氣溫回升,西半部日夜溫差較大。下週三另一波東北季風南下,迎風面轉雨,北台灣氣溫將明顯下降。

(資料來源:威傳媒新聞-WinNews)

Sorumluluk Reddi: Bu sitede yeniden yayınlanan makaleler, halka açık platformlardan alınmıştır ve yalnızca bilgilendirme amaçlıdır. MEXC'nin görüşlerini yansıtmayabilir. Tüm hakları telif sahiplerine aittir. Herhangi bir içeriğin üçüncü taraf haklarını ihlal ettiğini düşünüyorsanız, kaldırılması için lütfen [email protected] ile iletişime geçin. MEXC, içeriğin doğruluğu, eksiksizliği veya güncelliği konusunda hiçbir garanti vermez ve sağlanan bilgilere dayalı olarak alınan herhangi bir eylemden sorumlu değildir. İçerik, finansal, yasal veya diğer profesyonel tavsiye niteliğinde değildir ve MEXC tarafından bir tavsiye veya onay olarak değerlendirilmemelidir.

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