X
X-axis, real-world 3-D coordinate system (cross-
shore)
ADV observation for statistical analysis
Xi
y
Y-coordinate of imaged object in 3-D coordinate
system
yc
Y-coordinate of camera location in 3-D coordinate
system
Y
Y-axis, real-world 3-D coordinate system (alongshore)
Yi
CIIS observation for statistical analysis
z
Z-coordinate of imaged object in 3-D coordinate
system
Z-coordinate of camera location in 3-D coordinate
zc
system
Z
Z-axis, real-world 3-D coordinate system
α
Phillips constant
αpq
Wave number coefficient
γ
Enhancement factor
η
Water-surface elevation
θm
Vector-mean wave direction
θm(f)