氣象局未來將不再區分東北季風和東北風 - 颱風討論
By Skylar Davis
at 2022-09-30T19:25
at 2022-09-30T19:25
Table of Contents
氣象局在今天最新的10日報底下提及：
冬季時，冷氣團所在的高壓中心在寒冷的蒙古或西伯利亞一帶亞洲大陸上發展，當冷空氣
堆積一定程度後，常在中國向南、向東以分裂高壓形式逐漸移出；而當冷空氣經由順時鐘
方向經華中或東海吹到臺灣附近時，常轉向成偏北方向，平均而言就是我們所熟知的東北
季風，就氣候統計的風向轉變上來看，東北季風盛行於１０月起到次年４月止；氣象局滾
動檢討過去一段時間的作法，新增２０度以區隔東北季風和東北風，造成過多的冷空氣名
詞定義，民眾反映使用上容易混淆，未來將回歸學理上，東北季風形容的是順著北方高壓
通過時影響的風場，其帶來的大範圍的冷空氣，則依據抵達臺灣附近的強度來定義冷氣團
、強烈冷氣團或寒流的影響。
簡而言之就是不再使用20度區分東北季風或東北風，以後都通稱「東北季風」。
--
冬季時，冷氣團所在的高壓中心在寒冷的蒙古或西伯利亞一帶亞洲大陸上發展，當冷空氣
堆積一定程度後，常在中國向南、向東以分裂高壓形式逐漸移出；而當冷空氣經由順時鐘
方向經華中或東海吹到臺灣附近時，常轉向成偏北方向，平均而言就是我們所熟知的東北
季風，就氣候統計的風向轉變上來看，東北季風盛行於１０月起到次年４月止；氣象局滾
動檢討過去一段時間的作法，新增２０度以區隔東北季風和東北風，造成過多的冷空氣名
詞定義，民眾反映使用上容易混淆，未來將回歸學理上，東北季風形容的是順著北方高壓
通過時影響的風場，其帶來的大範圍的冷空氣，則依據抵達臺灣附近的強度來定義冷氣團
、強烈冷氣團或寒流的影響。
簡而言之就是不再使用20度區分東北季風或東北風，以後都通稱「東北季風」。
--
Tags:
颱風
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