天氣小觀:一周後,高壓讓位,季風槽擴展 - 颱風討論

By Christine
at 2013-09-10T15:27
at 2013-09-10T15:27
Table of Contents
仔細看了一下,一周後,亞洲西南季風全面HIGH起來
從南亞、印度洋到西太平洋的跨赤道流全面上來,
西南季風源源不絕,太平洋季風槽活躍。
看來,南極震盪AAO開始了,西南季風高潮了
從圖上:http://ppt.cc/f~kC
可以看到AAO指數轉負,這是衡量南半球中緯度地區冷空氣活躍的程度。
當AAO轉負值,代表南極冷空氣往溫帶地區震盪,使中緯度地區冷空氣活躍,
對應到越赤道流轉強,在北半球夏季就會使西南季風非常活躍。
配合太平洋高壓的東風,季風槽在南海和西太平洋上都很HIGH。
尤其小心颱風快速增強。
--
從南亞、印度洋到西太平洋的跨赤道流全面上來,
西南季風源源不絕,太平洋季風槽活躍。
看來,南極震盪AAO開始了,西南季風高潮了
從圖上:http://ppt.cc/f~kC
可以看到AAO指數轉負,這是衡量南半球中緯度地區冷空氣活躍的程度。
當AAO轉負值,代表南極冷空氣往溫帶地區震盪,使中緯度地區冷空氣活躍,
對應到越赤道流轉強,在北半球夏季就會使西南季風非常活躍。
配合太平洋高壓的東風,季風槽在南海和西太平洋上都很HIGH。
尤其小心颱風快速增強。
--
Tags:
颱風
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