Diffuse irradiance on Mars inclined surface

Calculates the diffuse solar irradiance (scattered by atmospheric dust) incident on an inclined surface on Mars. Accounts for the view factor of the sky from the tilted surface.

Usage

G_di(
  Ls,
  phi,
  longitude,
  Ts,
  z = Z(Ls = Ls, phi = phi, Ts = Ts),
  tau,
  al = albedo(latitude = phi, longitude = longitude, tau = tau),
  beta
)

Arguments

Ls: Areocentric longitude [deg]
phi: Planetary latitude [deg]
longitude: Planetary longitude [deg]
Ts: Solar time [h]
z: Sun zenith angle [deg]. If not provided, calculated from Ls, phi, and Ts
tau: Atmospheric optical depth (dimensionless)
al: Surface albedo (dimensionless, 0-1). If not provided, calculated from latitude, longitude, and tau
beta: Surface tilt/slope angle from horizontal [deg]

Value

Diffuse irradiance on inclined surface [W/m²]