Function N2SAT_V2(S, T) 'CALCULATE NITROGEN CONCENTRATION AT SATURATION 'Source: The solubility of neon, nitrogen, and argon in distilled water ' and seawater - Hamme & Emerson (2004) Deep Sea Research V51(11): ' 1517-1528. doi: 10.1016/j.dsr.2004.06.009. 'Input: S = Salinity (0/00) ' T = Temp (deg C) 'Output: Nitrogen saturation at one atmosphere (umol/kg). 'DEFINE CONSTANTS, ETC FOR SATURATION CALCULATION A0 = 6.42931 A1 = 2.92704 A2 = 4.32531 A3 = 4.69149 B0 = -7.44129e-03 B1 = -8.02566e-03 B2 = -1.46775e-02 'CALCULATE NITROGEN SATURATION Ts = log((298.15-T)/(273.15+T)) lnC = A0 + Ts*(A1 + Ts*(A2 + Ts*A3)) lnC = lnC + S * (B0 + Ts*(B1 + Ts*B2)) N2SAT_V2 = exp(lnC) End Function