Eli has been fooling with his Spectra Calc Carrot. This started as an effort to see where the mixing ratios of carbon dioxide exceeds that of water vapor, which as you can see below, ranges from 5 km to about 10, depending on location and time of year. The mixing ration for CO2 is constant in the troposphere and stratosphere (and even higher)
It is pretty well known that the tropopause is highest in the tropics and coldest
but the bunnies found something interesting, which we assume is well known to those who actually work on this stuff, but whose implications have yet to become clear. The thickness of the region of lowest temperature between the troposphere and the stratosphere is greatest at high latitudes and thinnest at the equator.
If nothing else this should have an effect on water vapor and other condensible gases crossing the barrier.
Thursday, July 19, 2007