好消息!最新梅雨指標圖出爐 鄭明典:降雨 - 台中

By Sandy
at 2021-04-13T23:43
at 2021-04-13T23:43
Table of Contents
好消息! 最新梅雨指標圖出爐 鄭明典:降雨現曙光
自由時報 2021/04/13 10:40
〔即時新聞/綜合報導〕全台水情嚴峻,近期討論熱度最高的除了4月颱外,就是今年梅
雨季何時登場,繼日前介紹如何看懂梅雨指標圖後,中央氣象局長鄭明典今上午公布最新
資訊,表示5月中降下梅雨「有點曙光」。
鄭明典在臉書PO出最新出爐的梅雨指標圖,其中紅線與藍線在5月21日均有超過正值的趨
勢,代表屆時台灣很可能出現連續性顯著降雨,也就是能紓緩旱象的梅雨。
鄭明典此前曾刊專文,向民眾介紹要如何看懂梅雨指標圖表,圖中綠色長條是觀測雨量,
以每日9毫米作為顯著降雨門檻;而紅線代表台灣附近屬於正渦度區,通常是有鋒面在附
近的意思;藍線則為垂直風切指數,正值代表西南季風條件出現。
而在紅線與藍線同時為正值時,台灣容易出現連續性顯著降雨,「也就是概念上的梅雨」
。
https://news.ltn.com.tw/news/life/breakingnews/3497850
--
自由時報 2021/04/13 10:40
〔即時新聞/綜合報導〕全台水情嚴峻,近期討論熱度最高的除了4月颱外,就是今年梅
雨季何時登場,繼日前介紹如何看懂梅雨指標圖後,中央氣象局長鄭明典今上午公布最新
資訊,表示5月中降下梅雨「有點曙光」。
鄭明典在臉書PO出最新出爐的梅雨指標圖,其中紅線與藍線在5月21日均有超過正值的趨
勢,代表屆時台灣很可能出現連續性顯著降雨,也就是能紓緩旱象的梅雨。
鄭明典此前曾刊專文,向民眾介紹要如何看懂梅雨指標圖表,圖中綠色長條是觀測雨量,
以每日9毫米作為顯著降雨門檻;而紅線代表台灣附近屬於正渦度區,通常是有鋒面在附
近的意思;藍線則為垂直風切指數,正值代表西南季風條件出現。
而在紅線與藍線同時為正值時,台灣容易出現連續性顯著降雨,「也就是概念上的梅雨」
。
https://news.ltn.com.tw/news/life/breakingnews/3497850
--
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