DO concentration - Weiss

The equation by Weiss is used to convert saturation to concentration for the instruments using Oxyguard, Aanderaa, and Rinko sensors. The equation reads:

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

where:

A_l = -173.4292                 
A₂ = 249.6339                     
A₃ = 143.3483
A₄ = - 21.8492                 
B₁ = - 0.033096
B₂ =   0.014259
B₃ = - 0.001700

S = salinity in g/kg

T = temperature  degrees K

Temperature in degrees Kelvin is calculated using equation [2].

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