They show that these plumes originate 80 kilometers below the surface cloud deck
and rise up quickly into the stratosphere, where supercooled ammonia freezes to form ammonia ice clouds.
This is a unique environment where natural and anthropogenic aerosols and a semipermanent and widespread stratocumulus (Sc) cloud deck
Imagine taking off in a high-powered twin-engine airplane under a dark cloud deck
. The powerful twin accelerates, triggering the false climb illusion.
Each orbit includes a close passage over Jupiter cloud deck
, where it flies between the planet's north and south poles.
Conditions in the cloud deck
are moderate--roughly the same temperature and pressure as at Earth's surface.
For example, "mammatocumulus" appears as dark, rounded protrusions below a higher cloud deck
. Although it is often linked with severe thunderstorms, it can in fact occur with fair-weather clouds, too.
The report is an average of the previous 5 minutes, but because the sensor only sees straight up, a sudden cloud deck
could be a stray cloud.
The bands reach at least 350 to 400 kilometers beneath the cloud deck
, Bolton reported.
I've used a loop of string around my neck as a place to hang a pen and I've wondered where to put my sunglasses after descending into a cloud deck
and setting up for an instrument approach.
Saturn was bright in Virgo in the late evening; Mr James showed a superb image of the planet by Damian Peach, and a software transformation that showed the remarkable standing wave in the planet's cloud deck
called the 'north polar hexagon'.
We were concerned about doing a whiteout take off and inadvertently entering the low cloud deck
. We dumped gas and ran the Take Off and Landing Data.