Register to reply

Jupiter's atmosphere

by argonurbawono
Tags: atmosphere, jupiter
Share this thread:
argonurbawono
#1
Sep12-06, 12:21 AM
P: 18
once i looked at short video clip of jupiter atmosphere. i have questions in mind:
1. why the atmosphere seems to travel at different speed making up a number of sliding rings?why don't they travel together?
2. what makes the pattern of turbulence so huge? i think we need such an incredible viscousity to produce such an effect. why don't they break up into tiny curls?

i never learn astronomy, so please excuse my silly questions if they sound very trivial.
Phys.Org News Partner Astronomy news on Phys.org
Mixing in star-forming clouds explains why sibling stars look alike
Thermonuclear X-ray bursts on neutron stars set speed record
How can we find tiny particles in exoplanet atmospheres?
russ_watters
#2
Sep12-06, 10:37 AM
Mentor
P: 22,300
Good questions. Let me reframe the issue slightly:

First, what is wind and how does it work on Earth? Wind is nothing more than convective heat transfer: warm air rises, cool air moves in to take its place. Since it is warmer at the equator than the poles, the convection takes heat up and away from the equator and sends it to the poles. Now you may notice that winds around where you live often go in the same direction. So what causes that? That's the coriolis effect. If wind moves in a straight line while the earth is rotating under it, that causes the wind to bend.

This first link has a good description of the coriolis effect, the second has a good diagram showing the prevailing wind directions:
http://www.rcn27.dial.pipex.com/cloudsrus/wind.html
http://seis.natsci.csulb.edu/rbehl/winds.htm

And here is a great link showing the two circulation patterns side-by-side:
http://www.classzone.com/books/earth...2704page02.cfm

Notice how similar the bands look to how wind circulates on Jupiter?! The names are different, but they match up almost exactly!
argonurbawono
#3
Sep12-06, 06:48 PM
P: 18
wow... i've checked it.
so earth atmosphere is actually just doing the same thing ...

FeynmanMH42
#4
Sep16-06, 12:28 PM
P: 68
Jupiter's atmosphere

Yep, but our atmosphere is thin and transparent, so we don't see it. :)


Register to reply

Related Discussions
Jupiter's clouds Astronomy & Astrophysics 1
The atmosphere General Physics 2
FTL in an atmosphere... General Physics 0
FTL in an atmosphere... General Physics 0
Jupiter's Giant Red Spot Astronomy & Astrophysics 14