Thunderstorms can pose a threat to aircraft , particularly in the stormy summer months , mainly because of the convective motion of the air within storms .
暴风雨可对飞机构成威胁,尤其是在多暴雨的夏季月份,这主要是由暴雨中的空气对流运动造成的。
Perhaps surprisingly , scientists still debate how exactly lightning forms ; theories range from colliding slush and ice particles in convective clouds to , more speculatively , a rain of charged solar particles seeding the skies with electrical charge .
A white froth is present on the lake 's surface around the plume when the convective activity momentarily increases .
对流活动加剧的瞬间,某种白色的气泡在卷流附近的湖面泛起。
When the air close to the mushrooming convective clouds is near saturation , additional lift from the fast-rising current causes the air column to become thoroughly saturated .
当靠近突然扩大对流云的空气接近饱和时,由于快速上升的气流所引起的附加提升,使气柱变得完全饱和。
The new images show that the clouds are actually vigorous convective storms that form yet another distinct , inner ring .
新图像显示,那些云团实际上是强有力的对流风暴,对流风暴又形成了另外一个清晰的内环。
Below a certain threshold , they will not be strong enough to overcome the convective mixing of the gas at the surface , and spots will disappear altogether .