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)
Vector-mean wave direction as function of frequency
presented in units of deg relative to model coordinate
system
θm(f)c
Vector-mean wave direction as a function of
frequency presented in units of deg relative to model
coordinate system following application of coherence
cutoff criteria
<∆θ>
Wave direction mean angular difference
σ
Camera roll rotation angle
σα
Low-frequency peak decay factor
σb
High-frequency peak decay factor
σθ
Standard deviation of wave direction mean angular
difference
τ
Camera tilt rotation angle
φ
Camera pan rotation angle
A3
Appendix A Notation
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