Building a Planet Atmosphere: Fundamental Physics and Chemistry
This chapter provides an overview of the basic concepts foundational to atmospheric physics and chemistry. We discuss the retention of atmospheres against thermal evaporation and the global energy balance of planets. We present simple derivations of the vertical profile of an atmosphere, which may be shaped by convective and radiative transport.
We then briefly touch upon the three-dimensional atmospheric structure, as shaped by circulation patterns. We describe how the abundances of chemical species in the atmosphere are determined, starting with the assumption of chemical equilibrium and then expanding to various disequilibrium effects.
We introduce the particles that can be important components of atmospheres (clouds and hazes) and sketch out some of their complexity. Finally, we review some of the differences between atmospheres of terrestrial and gaseous worlds.
Emily Rauscher
Comments: 23 pages, 5 figures, this is a preprint from the upcoming Handbook of Exoplanets, 2nd edition, eds. Deeg and Belmonte
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:2410.18943 [astro-ph.EP] (or arXiv:2410.18943v1 [astro-ph.EP] for this version)
https://doi.org/10.48550/arXiv.2410.18943
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Submission history
From: Emily Rauscher
[v1] Thu, 24 Oct 2024 17:31:32 UTC (2,443 KB)
https://arxiv.org/abs/2410.18943
Astrobiology,