天氣小觀:未來一週,東亞3月的寒潮爆發 - 颱風討論
By Lily
at 2020-03-10T20:02
at 2020-03-10T20:02
Table of Contents
從昨晚起各地出現冷鋒過境的降雨,
可說是一道春雨鋒面,東北季風南下受到偏南風的阻擋,
只是太平洋高壓緯度太低,變性高壓也弱,暖氣團阻擋不了多久便節節敗退,
因此春雷還未成氣候,冷鋒就順利地推過台灣,
午後明顯的冷空氣南下,溫度開始由北往南下降了。
今晚到明天冷空氣最強,有機會接近冷氣團的14.x溫度。
當然,從另一個角度來看,這也是冬季強極渦的冷暖冷冷冷局,
延續目前北極渦旋的異常強勁,偏向東亞型,
因此,依照冬季系統的如意算盤如下:
週三:冷
週四:暖
週五:冷-強烈東北季風
週六:冷-冷氣團
週日:冷-冷氣團~強烈冷氣團
週一:冷-冷氣團
週二:冷-強烈東北季風
但是!
夏季系統早已甦醒,南亞的暖氣團一波接一波北上,即便敗退也會重新再來,
隨著青藏高原再度進入冷源轉熱源的過渡期,
蒙古高原的冷氣團將漸漸少了青藏高原冷空氣的支援,
同時,南亞的暖脊勢力推擠著西風帶,
春季大氣的高空系統移動越來越快速,環境只會越來越不利冷氣團堆積。
因此,模式顯示未來一週,
週三:暖氣團北上
週四:南方副高集結準備抵禦東亞冷氣團南下
週五:冷暖再度交戰
週六:暖氣團退守中南半島
週日:暖氣團退守東南亞
週一以後:暖氣團重新振作
因此,
未來一週較冷的情形應該就是本週末(六、日)兩天,
不過整體來看,仍然以冬季系統掌控大優勢,
但南方夏季系統抵禦+春天暖陽的勢力,
也能削減冬季系統的威力,就看能消減多少了。
最後順便一提,儘管目前北極渦旋異常的強勁,
但隨著北極點的永晝開始,北極渦旋從平流層由上往下逐漸減弱,
北極渦旋減弱是不可避免的,
反而春天後,
仰賴北極海冰的反射太陽光,
消融速度慢一點的話,可以減緩北極的增溫了。
(快速說說,以上供參囉)
--
可說是一道春雨鋒面,東北季風南下受到偏南風的阻擋,
只是太平洋高壓緯度太低,變性高壓也弱,暖氣團阻擋不了多久便節節敗退,
因此春雷還未成氣候,冷鋒就順利地推過台灣,
午後明顯的冷空氣南下,溫度開始由北往南下降了。
今晚到明天冷空氣最強,有機會接近冷氣團的14.x溫度。
當然,從另一個角度來看,這也是冬季強極渦的冷暖冷冷冷局,
延續目前北極渦旋的異常強勁,偏向東亞型,
因此,依照冬季系統的如意算盤如下:
週三:冷
週四:暖
週五:冷-強烈東北季風
週六:冷-冷氣團
週日:冷-冷氣團~強烈冷氣團
週一:冷-冷氣團
週二:冷-強烈東北季風
但是!
夏季系統早已甦醒,南亞的暖氣團一波接一波北上,即便敗退也會重新再來,
隨著青藏高原再度進入冷源轉熱源的過渡期,
蒙古高原的冷氣團將漸漸少了青藏高原冷空氣的支援,
同時,南亞的暖脊勢力推擠著西風帶,
春季大氣的高空系統移動越來越快速,環境只會越來越不利冷氣團堆積。
因此,模式顯示未來一週,
週三:暖氣團北上
週四:南方副高集結準備抵禦東亞冷氣團南下
週五:冷暖再度交戰
週六:暖氣團退守中南半島
週日:暖氣團退守東南亞
週一以後:暖氣團重新振作
因此,
未來一週較冷的情形應該就是本週末(六、日)兩天,
不過整體來看,仍然以冬季系統掌控大優勢,
但南方夏季系統抵禦+春天暖陽的勢力,
也能削減冬季系統的威力,就看能消減多少了。
最後順便一提,儘管目前北極渦旋異常的強勁,
但隨著北極點的永晝開始,北極渦旋從平流層由上往下逐漸減弱,
北極渦旋減弱是不可避免的,
反而春天後,
仰賴北極海冰的反射太陽光,
消融速度慢一點的話,可以減緩北極的增溫了。
(快速說說,以上供參囉)
--
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