marsrad1.0.0 package

Mars Solar Radiation

albedo

The albedo function.

declination

Solar declination angle on Mars

f

Normalized net flux function

G_ali

Albedo-reflected irradiance on Mars inclined surface

G_b

Direct beam irradiance on Mars surface normal to solar rays

G_bh

Direct beam irradiance on Mars horizontal surface

G_bi

Direct beam irradiance on Mars inclined surface

G_dh

Diffuse irradiance on Mars horizontal surface

G_di

Diffuse irradiance on Mars inclined surface

G_h

Global irradiance on Mars horizontal surface

G_i

Global irradiance on Mars inclined surface

G_ob

Beam irradiance at top of Martian atmosphere

G_obh

Beam irradiance on horizontal surface at top of Mars atmosphere

H_ali

Albedo-reflected daily insolation on Mars inclined surface

H_bh

Beam daily insolation on Mars horizontal surface

H_bi

Beam daily insolation on Mars inclined surface

H_dh

Diffuse daily insolation on Mars horizontal surface

H_di

Diffuse daily insolation on Mars inclined surface

H_h

Global daily insolation on Mars horizontal surface

H_i

Global daily insolation on Mars inclined surface

H_obh

Daily beam insolation at top of Mars atmosphere

I_ali

Albedo-reflected insolation on Mars inclined surface over time period

I_bh

Beam insolation on Mars horizontal surface over time period

I_bi

Beam insolation on Mars inclined surface over time period

I_dh

Diffuse insolation on Mars horizontal surface over time period

I_di

Diffuse insolation on Mars inclined surface over time period

I_h

Global insolation on Mars horizontal surface over time period

I_i

Global insolation on Mars inclined surface over time period

I_obh

Beam insolation at top of Mars atmosphere over time period

is_irradiated

Check if surface is receiving solar irradiance

is_polar_day

Check if location is experiencing polar day

is_polar_night

Check if location is experiencing polar night

marsrad-package

marsrad: Mars Solar Radiation

optical_depth

Atmospheric optical depth on Mars

optimal_angle

Optimal tilt angle for maximum daily insolation

sunrise

Sunrise time on Mars

sunset

Sunset time on Mars

T_d

Number of Mars daylight hours

Z

Solar zenith angle

A set of functions to calculate solar irradiance and insolation on Mars horizontal and inclined surfaces. Based on NASA Technical Memoranda 102299, 103623, 105216, 106321, and 106700, i.e. the canonical Mars solar radiation papers.

  • Maintainer: Georges Labrèche
  • License: GPL-3
  • Last published: 2025-11-27