Looking for atmospheric density models of various planets and moons, any sort of data/resources/database of this information would be extremely useful as I am working on recreating these models for simulations.

  • $\begingroup$ Please use good grammar it will get you better answers and less down votes. Read everything!. Happy to see a new user. $\endgroup$
    – Muze
    Apr 18, 2018 at 16:23
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    $\begingroup$ Maybe a few more specifications could help.. do you just need an atmospheric scale height for a simple exponential density model, or do you need something more sophisticated? $\endgroup$ Apr 19, 2018 at 1:42
  • $\begingroup$ It would help to know what level of detail you're looking for. For example, here's a paper with some nice work on the hydrogen density of Ganymede: agupubs.onlinelibrary.wiley.com/doi/10.1029/97GL01927 $\endgroup$ Apr 20, 2018 at 4:41

1 Answer 1


Depending on your needs, a simple exponential model could work. A list of various body's scale heights is available on Wikipedia.

At the opposite extreme, there are the GRAMs, Global Reference Atmospheric Model(s). These are the gold standard of atmospheric modeling (short of a few use cases), available for all bodies with significant atmospheres (Venus, Earth, Mars, Jupiter, Saturn, Titan, Uranus, Neptune).

You do have to officially request access to the GRAM software(s) from NASA and sign a "Software Usage Agreement" (cool or frightening or verbosely bureaucratic depending on how you look at it), but in my experience the process was pretty easy and relatively quick (a few days).


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