火山灰云是指火山喷发出的烟尘气体等在高空集结形成的一种云状物,此云状物随着风向改变而变换方向,且遮蔽阳光,对环境带来一定的影响,通常火山喷发都会伴随火山灰云悬浮几周甚至几月。
届时如果火山灰云飘向另一个方向,飞机可能会被指示绕开或在其上方飞行。
If the ash cloud were to drift in another direction, flights could be sent around or above it.
纽约大学的气候模拟专家 Mike Rampino 的计算机模拟显示,由此产生的火山灰云可能使该地区陷入黑暗。
Computer simulations by Mike Rampino, a climate modeler from New York University, show that the resulting ash cloud could have plunged the area into darkness.
这和火山炙热气体掀起火山灰云非常相似。
This is similar to the hot volcanic gases drag up the clouds of dark ash.
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