颱風回顧-2001年 潭美(Trami)颱風 Part1 - 颱風討論
By Odelette
at 2012-08-27T19:34
at 2012-08-27T19:34
Table of Contents
一、前言:
2001年對台灣而言是個不平靜的一年,26個颱風裡有9個颱風發布警報。而潭美
(Trami,越南語意為薔薇)為當年形成的第5號颱風,這5個颱風當中,有4個襲台
影響台灣的機率達80%!!!
二、形成經過:
潭美颱風前身的熱帶低壓,因處於垂直風切較大的環境中,因此並不被看好能形
成颱風(7/8),然而經過兩天的醞釀,卻在7/10上午8時左右發展為輕度颱風。因
形成颱風的位置(20.1N 123.6E),距台灣僅400公里,故在形成後不久的7/10上
午9時40分發布海上颱風警報,並於當日的晚間20時15分發布陸上颱風警報。颱風
至形成起即受太平洋高壓的引導,以較為緩慢的速度(10km/hr)向西北行進,由於
中高層導引氣流偏向西北西,但低層導引氣流則向北,造成環境垂直風切增大,
即使處於較為溫暖的海面,其顛峰強度也只有20m/s(8)/25m/s(10),7級風暴風半
徑大約80km左右,為"迷你"的颱風。颱風中心於7/11傍晚17時30分左右在台東大武
附近登陸,並於當日晚間20時減弱為熱帶性低氣壓,結束其不到2天的生命史。
#第一代潭美碰到高低層導引氣流不同,造成的強風切,使其生命巔峰風速僅20m/s
第二代潭美碰到高低層導引氣流不同,加上遇到強冷空氣南下,其巔峰風速僅18m/s
2代潭美可說是生不逢時@@"
--
2001年對台灣而言是個不平靜的一年,26個颱風裡有9個颱風發布警報。而潭美
(Trami,越南語意為薔薇)為當年形成的第5號颱風,這5個颱風當中,有4個襲台
影響台灣的機率達80%!!!
二、形成經過:
潭美颱風前身的熱帶低壓,因處於垂直風切較大的環境中,因此並不被看好能形
成颱風(7/8),然而經過兩天的醞釀,卻在7/10上午8時左右發展為輕度颱風。因
形成颱風的位置(20.1N 123.6E),距台灣僅400公里,故在形成後不久的7/10上
午9時40分發布海上颱風警報,並於當日的晚間20時15分發布陸上颱風警報。颱風
至形成起即受太平洋高壓的引導,以較為緩慢的速度(10km/hr)向西北行進,由於
中高層導引氣流偏向西北西,但低層導引氣流則向北,造成環境垂直風切增大,
即使處於較為溫暖的海面,其顛峰強度也只有20m/s(8)/25m/s(10),7級風暴風半
徑大約80km左右,為"迷你"的颱風。颱風中心於7/11傍晚17時30分左右在台東大武
附近登陸,並於當日晚間20時減弱為熱帶性低氣壓,結束其不到2天的生命史。
#第一代潭美碰到高低層導引氣流不同,造成的強風切,使其生命巔峰風速僅20m/s
第二代潭美碰到高低層導引氣流不同,加上遇到強冷空氣南下,其巔峰風速僅18m/s
2代潭美可說是生不逢時@@"
--
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颱風
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