天氣小觀:冬季系統攻勢頻頻,副熱帶高壓往南退 - 颱風討論
By Iris
at 2016-01-07T08:28
at 2016-01-07T08:28
Table of Contents
天氣小觀:冬季系統攻勢頻頻,副熱帶高壓往南退
一切的起源於去年12月底,一道強烈的北大西洋溫帶氣旋,將暴風雨帶進北極,
讓北極升溫,北極冷氣團開始震盪釋出。
緊接著,歐亞大陸上演好戲登場,阻塞高壓在此出現。
隨著阻塞高壓出現,極地冷氣團在西伯利亞堆積,西伯利亞高壓增強,
整個西風噴流往南壓,東北亞陷入超級大寒凍,溫度突破零下30~40度。
部分地區可能突破零下50度。
目前隨著阻塞高壓崩潰後,西伯利亞冷高壓開始南下,冷氣團大舉入侵東亞,
不過,
今年的聖嬰效應下,太平洋副熱帶高壓偏強,力阻西風槽的延伸,
因此冷氣團遲遲無發壓到東亞南部包括台灣等地。
不過新一輪的精彩好戲又即將上演。(冬季的大氣環境,經常有精彩好戲上演。)
從東北太平洋暖脊往北極延伸,模式預報又會出現阻塞高壓,
而且這個阻塞高壓會衝入北極區,北極渦旋分裂。
隨著北極渦旋分裂後,高空冷渦旋向北半球四處散去,
在北美大陸,北太平洋,東北亞,歐洲都出現強勁的高空冷渦旋
隨著高空冷渦旋延伸出的西風槽,將極地冷氣團大量往南帶。
對台灣來說,東北亞的高空冷渦旋,將西伯利亞的冷氣團持續往南帶,
有了前一波阻塞高壓崩潰後的開路,模式預報一周後,
東北亞高空冷渦旋延伸出的西風槽會延伸到更低緯度。
冷氣團也跟著探到更低緯度,
模式預報,一周過後,,850帕3度線往台灣北部逼近。
看來一周後的冷空氣,應該會達到冷氣團等級了。
太平洋副熱帶高壓在一周後的冬季系統攻勢下,
北邊界線也往南退到北緯20度以南。保護不到台灣了。
(以上供參囉)
--
一切的起源於去年12月底,一道強烈的北大西洋溫帶氣旋,將暴風雨帶進北極,
讓北極升溫,北極冷氣團開始震盪釋出。
緊接著,歐亞大陸上演好戲登場,阻塞高壓在此出現。
隨著阻塞高壓出現,極地冷氣團在西伯利亞堆積,西伯利亞高壓增強,
整個西風噴流往南壓,東北亞陷入超級大寒凍,溫度突破零下30~40度。
部分地區可能突破零下50度。
目前隨著阻塞高壓崩潰後,西伯利亞冷高壓開始南下,冷氣團大舉入侵東亞,
不過,
今年的聖嬰效應下,太平洋副熱帶高壓偏強,力阻西風槽的延伸,
因此冷氣團遲遲無發壓到東亞南部包括台灣等地。
不過新一輪的精彩好戲又即將上演。(冬季的大氣環境,經常有精彩好戲上演。)
從東北太平洋暖脊往北極延伸,模式預報又會出現阻塞高壓,
而且這個阻塞高壓會衝入北極區,北極渦旋分裂。
隨著北極渦旋分裂後,高空冷渦旋向北半球四處散去,
在北美大陸,北太平洋,東北亞,歐洲都出現強勁的高空冷渦旋
隨著高空冷渦旋延伸出的西風槽,將極地冷氣團大量往南帶。
對台灣來說,東北亞的高空冷渦旋,將西伯利亞的冷氣團持續往南帶,
有了前一波阻塞高壓崩潰後的開路,模式預報一周後,
東北亞高空冷渦旋延伸出的西風槽會延伸到更低緯度。
冷氣團也跟著探到更低緯度,
模式預報,一周過後,,850帕3度線往台灣北部逼近。
看來一周後的冷空氣,應該會達到冷氣團等級了。
太平洋副熱帶高壓在一周後的冬季系統攻勢下,
北邊界線也往南退到北緯20度以南。保護不到台灣了。
(以上供參囉)
--
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