天氣小觀:熱帶性低氣壓25W水氣供應商 - 颱風討論
By Andrew
at 2022-10-22T07:59
at 2022-10-22T07:59
Table of Contents
昨晚起,秋季大氣地面秀25W開始和東北季風輻合,
與前此不同的是,這次冷高壓中心不會直接南下,比較偏東移,
因此降溫比較漸進式,但一連多天,冷空氣會不斷南下,
從大氣中層的高空場可以看到西風槽底週一探北台灣,
可見冬季系統嘗試想要接掌南方大氣高空。
不過,
南方大氣高空的太平洋高壓持續抵禦,兩者一來一往也上場了一場高空戰。
當然夏季系統只是防守方,不是攻擊方,
因此,要留意的當然不會是展開大氣高空秀,
而是台灣高空的輻散場是否被打開,
原因當然是25W這個水氣供應商展開的大氣地面秀。
從大氣高層來看,西風噴流的壓倒性優勢很明顯,
明天壓到北台灣上空,高層出現噴流輻散通道,
因此!
如果地面暖濕水氣抬升作用夠強的話,就會接上大氣高層的輻散通道,出現強降雨:
1.
首先,25W熱帶性低氣壓帶上來的暖濕水氣條件已經具備。(若成颱,水氣更多)
2.
再者,今日午後熱力作用,地面水氣勢必有了抬升作用。
(別看北台灣涼,南方熱呼呼水氣,南水北送)
3.
最後,東北季風明早增強,動力作用加強抬升暖濕水氣。(若成颱,秋颱(類)共伴)
事實上,
儘管大氣高層的西風噴流還沒下來,大氣中高層也沒有建立噴流,
但不用擔心到共伴效應是否發生,地面輻合秀已經在北台灣近海出現,
地面層到大氣低層的25W和太平洋高壓聯合的偏南風和東海往台灣海峽的東北季風輻合,
這種輻合已經開始對北宜降雨,也許慶幸的如果是秋颱,北宜早就出現豪雨了。
而,
北宜明早後,要留意的是否以下:
25W水氣供應商+東北季風噴流--供應暖濕水氣強勁上升接上-->高空場西風噴流通道
(以上說說囉)
--
與前此不同的是,這次冷高壓中心不會直接南下,比較偏東移,
因此降溫比較漸進式,但一連多天,冷空氣會不斷南下,
從大氣中層的高空場可以看到西風槽底週一探北台灣,
可見冬季系統嘗試想要接掌南方大氣高空。
不過,
南方大氣高空的太平洋高壓持續抵禦,兩者一來一往也上場了一場高空戰。
當然夏季系統只是防守方,不是攻擊方,
因此,要留意的當然不會是展開大氣高空秀,
而是台灣高空的輻散場是否被打開,
原因當然是25W這個水氣供應商展開的大氣地面秀。
從大氣高層來看,西風噴流的壓倒性優勢很明顯,
明天壓到北台灣上空,高層出現噴流輻散通道,
因此!
如果地面暖濕水氣抬升作用夠強的話,就會接上大氣高層的輻散通道,出現強降雨:
1.
首先,25W熱帶性低氣壓帶上來的暖濕水氣條件已經具備。(若成颱,水氣更多)
2.
再者,今日午後熱力作用,地面水氣勢必有了抬升作用。
(別看北台灣涼,南方熱呼呼水氣,南水北送)
3.
最後,東北季風明早增強,動力作用加強抬升暖濕水氣。(若成颱,秋颱(類)共伴)
事實上,
儘管大氣高層的西風噴流還沒下來,大氣中高層也沒有建立噴流,
但不用擔心到共伴效應是否發生,地面輻合秀已經在北台灣近海出現,
地面層到大氣低層的25W和太平洋高壓聯合的偏南風和東海往台灣海峽的東北季風輻合,
這種輻合已經開始對北宜降雨,也許慶幸的如果是秋颱,北宜早就出現豪雨了。
而,
北宜明早後,要留意的是否以下:
25W水氣供應商+東北季風噴流--供應暖濕水氣強勁上升接上-->高空場西風噴流通道
(以上說說囉)
--
Tags:
颱風
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