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龙卷风用英语怎么说_龙卷风是怎样形成的中英文

发布时间 : 2020-08-19 12:25:44来源 : 哦哟百科阅读数 :

导语 : 龙卷风是怎样形成的中英文Tornado Season Returns 龙卷风是云层中雷暴的产物。具体的说,龙卷风就是雷暴巨大能量中的一小部分在很小的区域内集中释放的一种形式。龙卷风的形成可以分

龙卷风是怎样形成的中英文Tornado
Season
Returns

龙卷风是云层中雷暴的产物。具体的说,龙卷风就是雷暴巨大能量中的一小部分在很小的区域内集中释放的一种形式。龙卷风的形成可以分为四个阶段:
(1)大气的不稳定性产生强烈的上升气流,由于急流中的最大过境气流的影响,它被进一步加强。
(2)由于与在垂直方向上速度和方向均有切变的风相互作用,上升气流在对流层的中部开始旋转,形成中尺度气旋。
(3)随着中尺度气旋向地面发展和向上伸展,它本身变细并增强。同时,一个小面积的增强辐合,即初生的龙卷在气旋内部形成,产生气旋的同样过程,形成龙卷核心。
(4)龙卷核心中的旋转与气旋中的不同,它的强度足以使龙卷一直伸展到地面。当发展的涡旋到达地面高度时,地面气压急剧下降,地面风速急剧上升,形成龙卷风。
Tornadoes
are
the
products
of
thunderstorms
in
the
clouds.
In
particular,
a
tornado
is
a
form
of
a
small
portion
of
the
huge
energy
of
a
thunderstorm
that
is
released
in
a
very
small
area.
The
formation
of
tornado
can
be
divided
into
four
stages:
(1)
the
instability
of
the
atmosphere
produces
a
strong
updraft,
which
is
further
strengthened
due
to
the
influence
of
the
maximum
flow
of
airflow
in
the
jet.
(2)
due
to
the
interaction
of
wind
with
shear
in
vertical
direction,
the
ascending
air
begins
to
rotate
in
the
middle
part
of
the
troposphere,
forming
mesoscale
cyclone.
(3)
as
the
mesoscale
cyclone
develops
toward
the
ground
and
extends
upward,
it
itself
becomes
thinner
and
enhanced.
At
the
same
time,
a
small
area
of
increased
convergence,
that
the
nascent
tornado
formed
in
the
cyclone,
cyclone
in
the
same
process,
the
formation
of
tornado
core.
(4)
rotation
and
tornado
core
of
the
cyclone
in
the
different,
its
strength
is
sufficient
to
tornado
has
been
extended
to
the
ground.
When
the
vortex
of
development
reaches
the
ground
height,
the
ground
air
pressure
drops
sharply
and
the
ground
wind
speed
rises
sharply,
forming
a
tornado.

龙卷风用英语怎么说_龙卷风是怎样形成的中英文

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