1. Equation of State (EOS-80)
Determines water density from T, S, and P
A through N are polynomials
T is temperature in oC
S salinity
P pressure in bars

2. Check values: A B C D T0 999.842594 8.24493E-1 -5.72466E-3 4.8314E-4F G
7.944E-2
1.6483E-2
E-2
E-4
E-2
E-5
E-5 H I J
2.2838E-3
E-4
E-3
E-5
E-4
E-6
E-7 M N
E-5
E-7
E-6
2.0816E-8
5.2787E-8
9.1697E-10
Check values:

3. 90 % of Ocean Water Greater influence of salinity on density
Mean T & S for World Ocean
Greater influence of salinity on density

4. Effects of Temperature and Salinity on Density
Thermal Expansion
Saline Contraction
x 10-4 oC-1
x 10-4 S-1
Density changes by 0.2 kg/m3 for a T change of 1oC,
and by 0.8 kg/m3 for a S change of 1.