| marsrad-package | marsrad: 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 |
| 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 |
| 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 |
| marsrad | 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 |