氣象局三度下修最低溫 寒流威猛超出預期 - 颱風討論

By Noah
at 2016-01-25T19:42
at 2016-01-25T19:42
Table of Contents
http://udn.com/news/story/9312/1464373
包括美國、日本氣象單位日前都預報這波寒流凶猛,台北將降雪,氣象局當時僅回應這些
預測「低估」溫度。但氣象局從上周至今已三度下修最低溫,霸王級寒流的威猛顯然超出
氣象局預期。
美國預報中心、日本氣象協會本月中紛紛預測,台北這波寒流溫度在一至四度,甚至可能
下雪。消息一出,引發不少議論,多數民眾認為不可能。
氣象局當時說,此波強度應僅是強烈大陸冷氣團,「台北市低溫三、四度」的說法,只是
各種電腦數值的一種,還說談低溫言之過早。不過,自上周開始,氣象局先是將強烈大陸
冷氣團下修為寒流等級,後續又先後下修各地最低溫。
氣象局預報中心主任鄭明典表示,台北市低溫從八度下修到六度、五度,最後修正到三度
,主要是時間愈近愈確定,對於極端個案須更小心謹慎,要很有把握才能發布,昨天因實
際測到台北市出現四度低溫,才又下修預報今可能有三度低溫;西部海邊則已提早下修。
氣象局預報員張承傳表示,氣象局會根據最新資料修正預報,且氣象局是官方單位須力求
謹慎,在可能性、信心度高的時候才能做出預報。
別再拿官方單位的立場和氣象主播的立場比了,
雖然都是預報,官方單位要承擔更多責任本來就會比較保守,
不只CWB,HKO預測香港,CMA預測華中東南地區也是數度下修。
不說別的,之前很多人看到CWB數值曾跑出1/19 -9度線到北台灣,
會因為這樣相信1/19台北1~4度的有多少?
--
包括美國、日本氣象單位日前都預報這波寒流凶猛,台北將降雪,氣象局當時僅回應這些
預測「低估」溫度。但氣象局從上周至今已三度下修最低溫,霸王級寒流的威猛顯然超出
氣象局預期。
美國預報中心、日本氣象協會本月中紛紛預測,台北這波寒流溫度在一至四度,甚至可能
下雪。消息一出,引發不少議論,多數民眾認為不可能。
氣象局當時說,此波強度應僅是強烈大陸冷氣團,「台北市低溫三、四度」的說法,只是
各種電腦數值的一種,還說談低溫言之過早。不過,自上周開始,氣象局先是將強烈大陸
冷氣團下修為寒流等級,後續又先後下修各地最低溫。
氣象局預報中心主任鄭明典表示,台北市低溫從八度下修到六度、五度,最後修正到三度
,主要是時間愈近愈確定,對於極端個案須更小心謹慎,要很有把握才能發布,昨天因實
際測到台北市出現四度低溫,才又下修預報今可能有三度低溫;西部海邊則已提早下修。
氣象局預報員張承傳表示,氣象局會根據最新資料修正預報,且氣象局是官方單位須力求
謹慎,在可能性、信心度高的時候才能做出預報。
別再拿官方單位的立場和氣象主播的立場比了,
雖然都是預報,官方單位要承擔更多責任本來就會比較保守,
不只CWB,HKO預測香港,CMA預測華中東南地區也是數度下修。
不說別的,之前很多人看到CWB數值曾跑出1/19 -9度線到北台灣,
會因為這樣相信1/19台北1~4度的有多少?
--
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