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Viewing Single Post From: The giant space ship example

This doesn't happen, because the DALR only applies in the troposphere, where there is convection. The stratosphere has a different lapse rate, which is actually determined by a radiative equilibrium.

I think the dwarf planet should not have a stratosphere.

"Mars and Venus also have thermospheres. What is missing is the temperature bump of a stratosphere (and mesophere) because they do not have an ozone layer to absorb the ultraviolet light."

There is a graph of Venus, Earth, and Mars. The line bends with Earth and Venus significantly, Mars is mostly straight, I think the dwarf would be straighter than Mars.

Btw, I believe that article is wrong- Mars does have ozone layer [as I recall it's quite low in elevation]. Oh drats, I better google it.

"About the image: HIPWAC spectrum of Mars’ atmosphere over a location on Martian latitude 40°N; acquired on 11 December 2009 during an observation campaign with the IRTF 3 m telescope in Hawai’i. This unprocessed spectrum displays features of ozone and carbon dioxide from Mars, as well as ozone in the Earth’s atmosphere through which the observation was made. Processing techniques will model and remove the terrestrial contribution from the spectrum and determine the amount of ozone at this northern position on Mars."

"There is much less oxygen to start with, so there is not very much ozone on Mars. It doesn't form a layer there, it reaches all the way to the surface. And there is little enough ozone that far more ultraviolet light reaches the surface of Mars than the surface of Earth -- you could get a bad sunburn very fast there. "

I didn't find what I was thinking about. But anyhow. Both Venus and Mars have fairly recently discovered to have an ozone- Venus very weak and Mars is hard detect. Since less O2 it's fainter and like earth has processes which create and destroy it.
Not significant point- I just recalled reading some article that mars had ozone.
Anyhow, I don't think you have stratosphere unless you have sunlight. And probably don't have a thermosphere and the other spheres, either.
Edited by gbaikie, Dec 9 2011, 01:44 AM.
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The giant space ship example · Physical theory for climate