tornado Earth Science

3 个科学问题 · 地球科学 Earth Science

本页目录

为什么美国中部被称为“龙卷 alley(走廊)”,特别多龙卷?

Why is the central US called 'Tornado Alley' with so many tornadoes?

那里是冷干的加拿大气团、暖湿的墨西哥湾气流和干热的西南气流交汇处,强烈的风切变和不稳定空气极易催生超级单体,从而频繁产生龙卷。
There, dry Canadian air, moist Gulf air, and hot dry southwestern air collide; strong wind shear and instability readily spawn supercells, making tornadoes frequent.
难度 专业 · 适合 高中(15-18) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

周淑贞 束炯,《气象学与气候学》第3版,高等教育出版社,1997

Zhou Shuzhen and Shu Jiong, Meteorology and Climatology, 3rd ed., Higher Education Press, 1997

#龙卷走廊 #气流交汇

龙卷风是怎么从雷暴云里“拧”出来的?

How does a tornado get 'twisted' out of a thunderstorm cloud?

在超级单体风暴里,上升气流被风切变拧成旋转的涡管(中气旋),当旋转向下延伸到地面,就形成了漏斗状的龙卷。
In a supercell, updrafts are twisted by wind shear into a rotating column (mesocyclone); when that rotation stretches down to the ground, it becomes a funnel-shaped tornado.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

周淑贞 束炯,《气象学与气候学》第3版,高等教育出版社,1997

Zhou Shuzhen and Shu Jiong, Meteorology and Climatology, 3rd ed., Higher Education Press, 1997

#龙卷 #中气旋

龙卷风为什么破坏力那么吓人?

Why is a tornado's damage so frightening?

龙卷风是把空气拧成的高速旋转柱子,中心气压很低,能把屋顶掀飞、把树拔起,虽然范围小但风力极强。
A tornado is a fast-spinning column of air with very low central pressure that can rip off roofs and uproot trees; small in size but extremely violent.
难度 入门 · 适合 幼儿(3-6) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

周淑贞 束炯,《气象学与气候学》第3版,高等教育出版社,1997

Zhou Shuzhen and Shu Jiong, Meteorology and Climatology, 3rd ed., Higher Education Press, 1997

#龙卷 #破坏力