Discussion
Which value does the scale height take for typical atmospheric conditions?
Answer: D
With a mean temperature near 250 kelvin, \( RT/g \) works out at about 7.3 kilometres, and 8 kilometres is the value usually quoted for the lower atmosphere. The half-pressure height of 5.5 kilometres is a different quantity, being the scale height multiplied by the natural logarithm of two. Both figures are worth carrying but they answer different questions. A single measurement chosen to respond to the one asymmetry beats several that respond to shared behaviour.
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