patiku wrote:Anguipes wrote:Hey, guys, the Church of Exobiology is across the street.
Here's the address.
No, it's here.
patiku wrote:Anguipes wrote:Hey, guys, the Church of Exobiology is across the street.
Here's the address.
Zompist's Markov generator wrote:it was labelled" orange marmalade," but that is unutterably hideous.
Sal wrote:1. Hot air rises on the equator, and spreads out from there
2. The hot air eventually cools, and so falls - in a different place from where it rose
3. The falling air hits the ground and spreads out, in both directions. So some of it goes back toward the tropics, some of it also goes toward the poles.
4. The air heading toward the poles is warmer than the air it meets, so eventually it rises again
5. The risen air spreads out, again in both directions - some toward the pole, some toward the tropics
6. The air going toward the tropics goes as far as meeting the falling are from stage 2, and falls with it
7. The air going toward the poles cools further and falls again. And so on.
8. This creates 'cells' in the atmosphere of circulating air. Earth has three per hemisphere, but if coriolis forces are greater there may be more (because greater deflection means the air doesn't get as far before it cools/warms)
Sal wrote:9a. However many cells, there will be an odd number.
Anguipes wrote:Hey, guys, the Church of Exobiology is across the street.
patiku wrote:Anguipes wrote:Hey, guys, the Church of Exobiology is across the street.
Here's the address.
Mashmakhan wrote:Now, back on topic: What happens when a planet is smaller and has a lighter density? Will that effect the equatorial velosity and rotation speed? Will the planet have less atmospheric cells, more atmospheric cells, or will the cells just be smaller?
Anguipes wrote:Cells sizes are proportional - you could fit the Earth in one of Jupiter's "small" cells. A small planet would have a smaller absolute size of cell, but not necessarily more cells because of it.
Final note: don't confuse equatorial rotation velocity with (equatorial) escape velocity. I'm talking about the former.
vampyre_smiles wrote:Oh wow, so a planet with a lot of ocean overall, but most of the land broken into large islands might have very few hurricanes?
eodrakken wrote:I'm still reading this too. Very useful stuff and well explained. Thanks for taking the trouble, Anguipes!
Anguipes wrote:The coriolis effect will cause winds to spiral out of high pressure zones (clockwise in the northern hemisphere, anticlockwise in the southern) and into low pressure zones (anticlockwise in the northern hemisphere, clockwise in the southern). [...]
Then, to simulate deflection from coriolis, rotate it one place clockwise in the northern hemisphere (above the rotational equator), or one place anticlockwise in the southern hemisphere
eodrakken wrote:So, for this model you're ignoring the fact that low pressure areas should make the wind spiral the other way
Shihali wrote:Could somebody outline the conditions for a relevant monsoon pattern to form? I have a con-continent in the tropics shaped vaguely like Africa, and I'm not sure whether it should have an important monsoon.