Re: [問題] 南大西洋的颶風(颱風)生成?
※ 引述《bbq2005 (小弟)》之銘言：
: 之前看了"不願面對的真相"
: 有關全球暖化對颱風的影響
: 高爾說 之前的南大西洋並無颶風生成的紀錄
: 可是近2.3年卻有颶風生成
: 想請問一下這前後的差異?
: 還有哪裡能找到這相關資料?
: 謝!
精華區裡頭擺的是2004年侵襲巴西的颶風 "Catarina"
http://www.ncdc.noaa.gov/oa/climate/research/2004/mar/brazilcane.html
這是2004年3月26日～28日衛星雲圖動畫..
當時還蠻喧騰一時的..
但是在去年(2006)也有出現了兩個不成氣候的"風暴"喔...
人氣上就沒有2004年那個強多了 XD
(1) http://tinyurl.com/y2s3c6
2006年2月23日
On February 23, a tropical depression formed for a few hours, but
was quickly sheared apart by strong upper-level winds. The system
had a closed circulation, and winds of up to 35 mph (according to
the QuikSCAT satellite).
The system formed near 29S 36W, about 600 miles southeast of Rio
de Janeiro, Brazil, over waters of about 27°C.
http://www.wunderground.com/hurricane/history/satl_tc.jpg
Visible image from 1613 GMT February 24, 2006, taken by the polar-
orbiting AQUA satellite, showing a possible tropical depression
that formed in the South Atlantic.
(2) http://tinyurl.com/mxq44
2006年3月15日
On March 15, another disturbance formed from the remains of a cold-
core low, which sat over warm waters of 27 °C long enough to start
acquiring tropical characteristics. This system had at least two
recorded bursts of convection, one near the center of circulation,
but both were swept clear by upper-level winds. Its southward
trajectory (parallel to the coast) over cooler waters, coupled with
interaction with a cold front served to prevent this system from
developing further.
http://www.wunderground.com/hurricane/history/GOES17452006074.jpg
Tropical/subtropical disturbance off the coast of Brazil.
Image credit: NASA Global Hydrology and Climate Center.
此外早在1991年南大西洋就曾出現過...而且是往非洲移動的颶風
Angola tropical cyclone of 1991
http://upload.wikimedia.org/wikipedia/en/c/c8/1991041215zVIS.gif
reached its peak strength off the Angola coast, becoming the first
tropical cyclone on record in the South Atlantic.
On April 10, 1991, what was either a strong tropical depression or a
weak tropical storm formed in the eastern South Atlantic, recorded by
weather satellites off the coast of Angola. It reached a peak on the
13th, and dissipated two days later, drifting west-southwestward from
where it formed. Of the few South Atlantic tropical cyclones that have
existed, this was the only one in the eastern Atlantic. This was also
the first South Atlantic tropical cyclone ever observed.
資料來源：http://en.wikipedia.org/wiki/South_Atlantic_tropical_cyclone
Wiki
http://www.wunderground.com/blog/JeffMasters/show.html
Meteorologist Jeff Masters' Blog
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