Reflection Characteristics of a Near-Interface Cavity in Ice at Supercritical Incidence

Table 1

Media parameters and geometric dimensions.

Variable	Value	Description/Explanation
	1000 kg/m^3	density of water
	917 kg/m^3	density of ice
	1480 m/s	longitudinal wave velocity in water
	3647 m/s	longitudinal wave velocity in ice
	1729 m/s	transverse wave velocity in ice
	23.94 deg	critical angle of longitudinal wave in ice
	58.87 deg	critical angle of transverse wave in ice
	0.05 m	cavity radius
	0.06-0.15 m	vertical distance between the cavity and ice-water interface
	20-200 kHz	incident frequency
	83.8-837.8 rad/m	wavenumber
	4.2-41.9	Helmholtz number
	1.2-3.0	relative depth