pyrtlib.rt_equation.RTEquation.refractivity

static RTEquation.refractivity(p: ndarray, t: ndarray, e: ndarray) → Tuple[ndarray, ndarray, ndarray]

Computes profiles of wet refractivity, dry refractivity, refractive index. Refractivity equations were taken from [Thayer-1974].

These equations were intended for frequencies under 20 GHz

Parameters:

• p (numpy.ndarray) – Pressure profile (mb).

• t (numpy.ndarray) – Temperature profile (K).

• e (numpy.ndarray) – Vapor pressure profile (mb).

Returns:

• dryn (numpy.ndarray): Dry refractivity profile

• wetn (numpy.ndarray): Wet refractivity profile

• refindx (numpy.ndarray): Refractive index profile

Return type:

Tuple[numpy.ndarray, numpy.ndarray, numpy.ndarray]