在大氣之中，龍捲風是一種小範圍，威力很強且極具破壞力的空氣旋渦，其直徑由數十公尺至數百公尺不等，平均而言約 250公尺。自遠處看，它狀似一暗灰色的漏斗或象鼻，自雲底向下伸展至地面，整個漏斗狀雲柱本身繞著一近似垂直的中心軸呈反時針方向急速旋轉，同時向前行進。雲柱有時在空中迴盪，有時降低及於地面，所經之處常造成嚴重災害。龍捲風路徑的長度，平均在 5 到 10 公里之間，然而亦有長達 300 公里的紀錄；龍捲風的壽命有些不到一分鐘，但有些則可維持數小時，平均歷時約不到十分鐘。
因為龍捲風所伴隨的風力太強，普通測量風速的裝置無不被摧毀無遺，所以很難得到可靠的紀錄。根據建築物的損壞程度，以及飛揚物體的打擊力來估計，其風速大致在每秒 100 公尺左右，甚至可能到達每秒 200公尺以上。就歷年來侵襲台灣強烈颱風來說，中心附近最大風速亦極少超過每秒80公尺者，足見龍捲風威力之大。
，其中風力極強，估計可達每小時 160公里，甚至達到每小時 480公
- 1 0 年前最佳解答
In the atmosphere, the tornado is one kind of small scope, the might very strong also extremely has the destructive power the air whirlpool, its diameter is different by dozens of meters to several hundred meters, the average says approximately 250 meters. Looked from the distant place, it resembles a dark gray the funnel or the trunk, extends from the cloud base to under to the ground, entire funnel shape cloud column itself assumes the counter-clockwise direction around an approximate vertical central shaft rapidly to revolve, simultaneously forward running. The cloud column sometimes in airborne reverberates, sometimes reduces reaches to the ground, passes through it place often to create the major disaster. Tornado way length, average in 5 to 10 kilometers between, however also has the length to reach 300 kilometers records; Tornado life somewhat not to a minute, but some may maintain for several hours, the average lasted approximately not to ten minutes.
Because the tornado follows wind power too strong, ordinary surveys the wind speed the installment to destroy all with nothing left, therefore is very difficult to obtain the reliable record. According to the building damage degree, as well as flies upwards the object to hit the impact to estimate, its wind speed approximately about each second 100 meters, even possibly arrives above each second 200 meters. Makes a sneak attack the Taiwan intense typhoon on all previous years to say that, nearby the center the maximum wind speed also extremely little surpasses each second 80 meters, indicates the tornado might to be big.
The tornado origin still not thorough has up to now been bright, they mostly occur in the strong cold front and buao"s line (in front of frontal area thunder rain band) neighbor, also has follows the hurricane appearance. Taiwan has the tornado occurrence in the
2006-03-22 18:00:50 補充：
spring summer also partner, fortunately because its scope small, the way is short, very little creates the significant
2006-03-22 18:03:55 補充：
disaster; But in the American mid-west tornado is a serious natural disaster.
2006-03-22 18:04:41 補充：
Because the tornado often in groups appears, carries under the arm the gale also passes through it place barometric pressure suddenly violently to drop, therefore has the extremely intense fearful destructive power.
2006-03-22 18:05:33 補充：
In the meteorology said the typhoon is one kind of fierce tropical cyclone, the tropical cyclone is a low atmospheric pressure which occurs on the tropics sea.
2006-03-22 18:06:02 補充：
In Northern Hemisphere's typhoon, its near ground wind, makes the counter clockwise rotation take the center of a typhoon as the center, does in the southern hemisphere clockwise
rotates. As for the typhoon this name origin, generally thought is from
2006-03-22 18:06:47 補充：
Cantonese "the gale" the evolution; But according to Professor Lin Shaohao textual criticism, possibly is "the wind sieves" the evolution from Southern Fujian language to come, Yu Lu Tingmei repairs the Taiwan county annals
2006-03-22 18:07:11 補充：
cloud: ", is the aborigine sees the hurricane to pinch around the rain the link to, airborne dances in circles like sieves", because said the wind sieves, says the hurricane to sieve the rain, has says the typhoon also, a sound sieves with, adds the wind to make, Zhu Shuch'eng harms.
2006-03-22 18:07:53 補充：
Until now Southern Fujian language calls the typhoon wind, therefore this view is quite credible. But regardless of "gale" also good, "the wind sieves" is also good, in brief the typhoon is occurs on the tropics sea one kind of extremely violent storm.
2006-03-22 18:08:27 補充：
Why not the tornado and do the typhoon have with?
About typhoon all questions, respectively asked already the greatly slightly understanding by before.
2006-03-22 18:09:15 補充：
Has certain phenomena and the typhoon is similar, but it has the reason, the substantive structure and so on is not certainly same.
This is big
2006-03-22 18:09:34 補充：
Slightly explains as follows:
The tornado is one kind is extremely intense but the dangerous tornado, may occur to the land (is called Lu Lungchuan)
Or marine (is called water-spout). It has the reason is because the tropics hot and damp air mass advances to參考資料： 我很認真喔 要選我喔
- 1 0 年前
我是花瓶他別的帳號 因為內容太多 所以我從他意見10開始接下去 如果要選 就選花瓶 forms cloud of column a funnel shape
Wind power greatly strengthened, estimated may amount to each hour 160 kilometers, even achieves each hour 480 male
In above wind speed, therefore destructive power extremely astonishing, is in all atmospheric phenomenon the destructive power is biggest.
Tornado Fan Ch'uanhen small, is not easy on the weather map to detect, but because associated to thunderstorm or
Wind attack period. Recently the meteorologist using the satellite, the radar and the lightning observation and so on studies it
The detailed situation, to has by the time possibly occurs when namely sends out the warning, enables to guard against in advance reduces damages
Loses. Middle Taiwan and the north-west plain area, in the spring and five, in June plum rain spell often sends
The fresh tornado, probably an average year has 1～2. Demonstrated according to the actual observed data, in typhoon
Also once the partner had the tornado or water-spout the situation.