Given that by definition of scale height an atmosphere thins by a factor of 1/e^x where x is elevation in terms of scale height multiples (See the table here: Definition of Scale Height), can we assume that the atmosphere is effectively non-existent at the elevation of 6H?
Density at elevation 6H
1/e^6 = ~0.00248 would mean about 0.2% of density at surface level
I know there is no real physical boundary but what I'm looking for is what is the assumed standard for simplifying calculations. Or is it just a bad idea to try and do it this way?
*This is a followup to another question:
How can you determine the initial volume of a planet's atmosphere?
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