Academic Articles
- Robinson, T., Catling, D. Common 0.1 bar tropopause in thick atmospheres set by pressure-dependent infrared transparency. Nature Geosci 7, 12–15 (2014). https://doi.org/10.1038/ngeo2020
- Shows planets with thick atmospheres have a tropopause at 0.1 bar; because at atmospheric pressures < 0.1 bar, transparency to thermal radiation allows short-wave heating (solar radiation) to dominate, creating a stratosphere. At
higher pressures, atmospheres become opaque to thermal
radiation, causing temperatures to increase with depth and
convection to ensue. A common dependence of infrared
opacity on pressure, arising from the shared physics of
molecular absorption, sets the 0.1 bar tropopause.
The ratio (γ) of specific heats at constant pressure (cp) and volume (cv ), respectively, (γ = cp/cv ) sets the dry adiabatic lapse rate for the trophospheric adiabat, and is 1.4 for atmospheres dominated by diatomic gases.
Other Links
- Tom Shula and Markus Ott : The “Missing Link” in the Greenhouse Effect | Tom Nelson Pod #232, Slides and 26-side paper for the preceeding interview.
- This paper by John Barrett, from 1994, makes some similar points to Tom Shula' interivew immediately above. He was seriously cancelled. More Jack Barrett's work can be found here.
- Tom Gallagher. Paleoclimatology Part 1, 1 hour, 41 minutes
- Tom Gallagher. Paleoclimatology Part 2, 1 hour, 17 minutes
- Tom Gallagher. Paleoclimatology Part 3, 42 minutes.
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