Table 2. Numerical values of parameters (see Table 1) used for computation of gas hydrate and free gas concentrations.

Symbols	Values with references
(z), [z] = m	Index properties data (Paull, Matsumoto, Wallace, et al., 1996)
Cs = 1.34 10-11 Pa-1	Paull, Matsumoto, Wallace, et al. (1996)
Ch = 1.19 10-10 Pa-1	Ice (Zimmerman and King, 1986)
Cw = -9.5 10-15 Pa-2 p(z) + 4.63 10-10 Pa-1	Riley and Chester (1987)
	Pressure
patm = 1 atm	Pressure of the atmosphere
h: 2800994, 2778995, 2770997 m	Height of water column (Paull, Matsumoto, Wallace, et al., 1996)
Cg = 4.24 10-8 Pa-1	Methane (Weast, 1992)
b	Index Properties data (Paull, Matsumoto, Wallace, et al., 1996)
Vs = 116 + 165z m/s, z < 36 m	Terrigenous sediments (Hamilton, 1976)
Vs = 237 + 1.28z m/s, 36 m < z < 120 m	Terrigenous sediments (Hamilton, 1976)
Vs = 322 + 0.58z m/s, z > 120 m	Terrigenous sediments (Hamilton, 1976)
µs = rb(Vs)2/ Pa	Terrigenous sediments
µh = 3.7 109 Pa	Ice (Zimmerman and King, 1986)
h = 920 kg/m3	Ice (Zimmerman and King, 1986)
g = 88.48 kg/m3	Methane (Weast, 1992)
w	Empirical formula (Fofonoff and Millard, 1983)
Density of sea water 1024 kg/m3	Paull, Matsumoto, Wallace, et al. (1996)
Temperature of sea water: 3.0994/995, 2.7997 °C	Paull, Matsumoto, Wallace, et al. (1996)
Salinity of sea water 35	Paull, Matsumoto, Wallace, et al. (1996)
Geothermal gradient: 0.0336994, 0.0335995, 0.0369997 °C/m	Paull, Matsumoto, Wallace, et al. (1996)