tau0M¶
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skysim.transmission.tau0M(lam, lam0=400.0, k0=0.013, alpha=-1.38)[source]¶ Calculate zenith optical depth due to Mie scattering off aerosols.
Use equation (4) of Noll 2012:
\[k^M(\lambda) = k_0 \lambda^\alpha\]- Parameters
- lamfloat or array
Wavelength in nanometers.
- lam0float
Optical depth is constant below this wavelength in nanometers.
- k0float
Extinction at 1000nm in mag / airmass.
- alphafloat
Extinction wavelength power.