pyrtlib.absorption_model.N2AbsModel.n2_absorption#

static N2AbsModel.n2_absorption(t: ndarray, p: ndarray, f: ndarray) → ndarray#

Collision-Induced Power Absorption Coefficient (Neper/km) in air with modification of 1.34 to account for O2-O2 and O2-N2 collisions, as calculated by [Boissoles-2003].

Parameters:

t (numpy.ndarray) – Temperature (K).
p (numpy.ndarray) – Dry air pressure (mb).
f (numpy.ndarray) – Frequency (GHz) - (valid 0-2000 GHz).

Raises:

ValueError – Raises to error whether inputn model is unorrect or not available

Returns:

Nitrogen continum absorption terms in Np/km

Return type:

np.ndarray

References