Mean Molecular Weight \(\overline{\mu}\)#

The mean molecular weight module, vert_mu, provides functions to compute the mean molecular weight of the atmosphere.

Exo Skryer provides several mean molecular weight calculation functions in the vert_mu module.

Constant \(\overline{\mu}\)#

Assume a single constant value for mean molecular weight throughout the atmosphere.

Example YAML Configuration:

physics:
  vert_mu: constant_mu

params:
  - { name: mu, dist: uniform, low: 2.0, high: 3.0, transform: logit, init: 2.3 }

Dynamic \(\overline{\mu}\)#

Computes the mean molecular weight, \(\overline{\mu}\) [g mol^-1], at each layer. This is the sum of each species, \(i\), volume mixing ratio (VMR), \(x\) with it’s respective molecular weight \(\mu\) [g mol^-1].

\[\overline{\mu} = \sum_{i}x_{i}\mu_{i}\]

Example YAML Configuration:

physics:
  vert_mu: dynamic