Articles | Volume 14, issue 1
Ocean Sci., 14, 15–40, 2018
Ocean Sci., 14, 15–40, 2018

Research article 04 Jan 2018

Research article | 04 Jan 2018

The density–salinity relation of standard seawater

Hannes Schmidt et al.

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Cited articles

Bacon, S., Culkin, F., Higgs, N., and Ridout, P.: IAPSO standard seawater: definition of the uncertainty in the calibration procedure and stability of recent batches, J. Atmos. Ocean. Tech., 24, 1785–1799,, 2007.
Bignell, N.: A magnetic float densimeter for the measurement of changes in water density on aeration, J. Phys. E Sci. Instrum., 15, 378–381,, 1982.
Bignell, N.: The effect of dissolved air on the density of water, Metrologia, 19, 57–59,, 1983.
Bignell, N.: Magnetic flotation in densimetry, Meas. Sci. Technol., 17, 2574–2580,, 2006.
Bradshaw, A.: The effect of carbon dioxide on the specific volume of seawater, Limnology and Oceanography, 18, 95–105,, 1973.
Short summary
A new density–salinity relation of standard seawater was developed based on highly accurate density measurements. The comparison of densities calculated using the new relation with those using the reference equation of state TEOS-10 showed significant deviations that are likely caused by accuracy overestimations of some density data underlying TEOS-10 and EOS-80. The new relation enables the determination of seawater density from salinity and vice versa with unprecedented accuracy.