Table 1.

Summary of symbols and definitions in calculating normalized sun glint for GLIMR.

Symbol	Units	Name	Definition
${\text{L}}_{\text{GN}}$	sr−1	Normalized sun glint	Sun glint radiance received by a sensor regardless of incident solar radiance.
$p$		Slope probability density function	A function of the viewing geometry and sea surface roughness variance that contribute to sun glint.
$\mathrm{\text{θ}}$	Degrees	Sensor zenith angle	Angle of the satellite relative to a vertical line above the observation point.
$\mathrm{\text{ρ}}\left(\mathrm{\text{ω}}\right)$	Unitless	Fresnel reflection coefficient	Fixed coefficient describing the interaction between unpolarized light and the water surface.
$\mathrm{\text{β}}$	Degrees	Surface tilt	The angle of reflection on a facet on the sea surface with a particular orientation that reflects sunlight to the satellite
${\mathrm{\text{σ}}}^2$	Unitless	Sea surface roughness variance	sensor relative to a horizontal plane. Measure of waves at the sea surface.
${\mathrm{\text{θ}}}_0$	Degrees	Solar zenith angle	Angle of the sun relative to a vertical line above the observation point.
$\mathrm{\text{ϕ}}$	Degrees	Azimuth angle	Angle between the sensor and the sun
$W$	m s−1	Wind speed	relative to the observation point. The horizontal speed of air moving in any direction at an altitude of 10 m
$\mathrm{\text{μ}}$	m s−1	Eastward wind	above the Earth. The horizontal speed of air moving towards the east at an altitude of 10 m
$\mathrm{\text{υ}}$	m s−1	Northward wind	above the Earth. The horizontal speed of air moving towards the north at an altitude of 10 m above the Earth.