吳德榮最後一役 盧碧路徑大敗老美 率先預報大轉彎 - 颱風討論

By Hedda
at 2009-10-23T18:17
at 2009-10-23T18:17
Table of Contents
http://tw.news.yahoo.com/article/url/d/a/091023/1/1tk3m.html
中颱盧碧的路徑出現戲劇性變化,背後負責操刀的,是即將退休的預報中心主任吳德榮。
週三下午,氣象局率先將預報路徑做大幅修正,預估中颱盧碧將出現戲劇性的大轉彎,從
台灣東部外海遠離,威脅大為降低。一天之後,各國紛紛跟進,就連引用美軍資料的CNN
,也報導各國路徑預測的差異。兩天之後,各國紛紛參照台灣的版本修正,就連美軍也在
預報的文字資料中,提及路徑會轉向的趨勢。事實上,芭瑪颱風也出現180度大轉彎,台
灣也是領先。可惜,外界卻忽略台灣兩度在預報上領先。對此,吳德榮表示:數值資料雖
然模擬出路徑可能調整,但調整的時機,需要人為的主觀判斷,經驗需要長期累積。(彭
群弼報導)
可能是公務員生涯最後一次預報颱風,即將退休,正在休長假的預報中心主任吳德榮,這
幾天都窩在氣象局看資料,參加預報討論會,並再度發揮「二枚腰」的功力,率先在週三
下午,發佈路徑將大轉彎的調整。
原本各國的氣象機構都認為:盧碧颱風以偏西的路徑通過呂宋島北方陸地,進入南海,而
吳德榮在週一,可能是最後一次為行政院長吳敦義簡報時,用的就是這個版本。
不過,秋天的颱風變數多,週三下午,吳德榮參照歐洲等幾個數值預報模式的資料之後,
決定大幅修正盧碧的路徑,來一個超過九十度以上的大轉彎,從原本的向西,轉而往北修
正,並進一步修正往東北,朝台灣東部外海通過遠離,如此一來,共伴豪雨威脅的時間以
及強度,都會大幅減輕,甚至對於已經「連中三元」的菲律賓,更有著完全不同的結果,
等於是盧碧到了門口卻不進門離開!
台灣修正之後,鄰近的香港也修正路線,但預期北轉的時間較早,至於包括韓國,美軍,
菲律賓,中國大陸都持續原有路徑,週四開始,台灣媒體最喜歡參考的美國CNN有線電視
新聞網,在天氣預報的片段中,氣象主播也仿效台灣媒體早年的做法,將各國的路徑都畫
出來,強調「只有台灣」跟人家不一樣,路徑是「各奔東西」,美軍及菲律賓都堅持盧碧
會造訪呂宋島。
一天之後,似乎各國的專家都紛紛閉嘴,並且參照台灣的預報模式修正,這也是繼芭瑪颱
風之後,台灣再度於颱風路徑預報上領先他國。至於始終不願意修改的美軍,預報圖上,
硬是讓盧碧颱風煞車,等在呂宋島北方近海,但文字預報資料裡,卻透露可能大轉彎的現
象。被台灣媒體一度捧上天的外國媒體,不知這一回要如何自圓其說。但可以確定的是,
「吳式預報」的領先,恐怕不是「超級」兩字可以形容。
對此,吳德榮低調表示:數值預報雖然提供了一些方向,但是需要人為主觀的判斷,特別
是轉彎的時機,以及造成轉彎的外在環境的條件研判。台灣可以領先,預報經驗及能力的
持續成長,恐怕比預報時搞噱頭,弄花俏來得更重要。
少了「吳式預報」的功力,未來氣象局的預報,是否只剩下跟電子媒體氣象美女主播一樣
的口語化?有待觀察。
--
中颱盧碧的路徑出現戲劇性變化,背後負責操刀的,是即將退休的預報中心主任吳德榮。
週三下午,氣象局率先將預報路徑做大幅修正,預估中颱盧碧將出現戲劇性的大轉彎,從
台灣東部外海遠離,威脅大為降低。一天之後,各國紛紛跟進,就連引用美軍資料的CNN
,也報導各國路徑預測的差異。兩天之後,各國紛紛參照台灣的版本修正,就連美軍也在
預報的文字資料中,提及路徑會轉向的趨勢。事實上,芭瑪颱風也出現180度大轉彎,台
灣也是領先。可惜,外界卻忽略台灣兩度在預報上領先。對此,吳德榮表示:數值資料雖
然模擬出路徑可能調整,但調整的時機,需要人為的主觀判斷,經驗需要長期累積。(彭
群弼報導)
可能是公務員生涯最後一次預報颱風,即將退休,正在休長假的預報中心主任吳德榮,這
幾天都窩在氣象局看資料,參加預報討論會,並再度發揮「二枚腰」的功力,率先在週三
下午,發佈路徑將大轉彎的調整。
原本各國的氣象機構都認為:盧碧颱風以偏西的路徑通過呂宋島北方陸地,進入南海,而
吳德榮在週一,可能是最後一次為行政院長吳敦義簡報時,用的就是這個版本。
不過,秋天的颱風變數多,週三下午,吳德榮參照歐洲等幾個數值預報模式的資料之後,
決定大幅修正盧碧的路徑,來一個超過九十度以上的大轉彎,從原本的向西,轉而往北修
正,並進一步修正往東北,朝台灣東部外海通過遠離,如此一來,共伴豪雨威脅的時間以
及強度,都會大幅減輕,甚至對於已經「連中三元」的菲律賓,更有著完全不同的結果,
等於是盧碧到了門口卻不進門離開!
台灣修正之後,鄰近的香港也修正路線,但預期北轉的時間較早,至於包括韓國,美軍,
菲律賓,中國大陸都持續原有路徑,週四開始,台灣媒體最喜歡參考的美國CNN有線電視
新聞網,在天氣預報的片段中,氣象主播也仿效台灣媒體早年的做法,將各國的路徑都畫
出來,強調「只有台灣」跟人家不一樣,路徑是「各奔東西」,美軍及菲律賓都堅持盧碧
會造訪呂宋島。
一天之後,似乎各國的專家都紛紛閉嘴,並且參照台灣的預報模式修正,這也是繼芭瑪颱
風之後,台灣再度於颱風路徑預報上領先他國。至於始終不願意修改的美軍,預報圖上,
硬是讓盧碧颱風煞車,等在呂宋島北方近海,但文字預報資料裡,卻透露可能大轉彎的現
象。被台灣媒體一度捧上天的外國媒體,不知這一回要如何自圓其說。但可以確定的是,
「吳式預報」的領先,恐怕不是「超級」兩字可以形容。
對此,吳德榮低調表示:數值預報雖然提供了一些方向,但是需要人為主觀的判斷,特別
是轉彎的時機,以及造成轉彎的外在環境的條件研判。台灣可以領先,預報經驗及能力的
持續成長,恐怕比預報時搞噱頭,弄花俏來得更重要。
少了「吳式預報」的功力,未來氣象局的預報,是否只剩下跟電子媒體氣象美女主播一樣
的口語化?有待觀察。
--
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