TY - JOUR
T1 - (p,ρ,T) properties of seawater
T2 - Extensions to high salinities
AU - Safarov, J.
AU - Berndt, S.
AU - Millero, F.
AU - Feistel, R.
AU - Heintz, A.
AU - Hassel, E.
PY - 2012/7/1
Y1 - 2012/7/1
N2 - Measurements of (p,ρ,T) properties of seawater with absolute salinity S A=(31.684, 33.507, 37.372, 37.969, 40.164, 41.825, 44.811, 46.119, 48.600, 50.232, 52.449 and 55.529)gkg -1, temperature T=273.15-468.15K and pressures, p, up to 140MPa are reported with the reproducibility of the density measurements observed to be in the average percent deviation range Δρ/ρ=±0.01-0.03%. The measurements are made with a new set up vibration-tube densimeter which is calibrated using double-distilled water (Wagner and Pruß, 2002), methanol [(de Reuck and Craven, 1993), (Osada et al., 1999) and (Yokoyama and Uematsu, 2003)] and aqueous NaCl solutions [(Archer, 1992) and (Hilbert, 1979)]. Based on these measurements, an empirical expression for the density of seawater at high salinities has been developed as a function of salinity, pressure and temperature. The results can be used to extend the present equation of state of seawater to higher temperatures for pressure up to 140MPa.
AB - Measurements of (p,ρ,T) properties of seawater with absolute salinity S A=(31.684, 33.507, 37.372, 37.969, 40.164, 41.825, 44.811, 46.119, 48.600, 50.232, 52.449 and 55.529)gkg -1, temperature T=273.15-468.15K and pressures, p, up to 140MPa are reported with the reproducibility of the density measurements observed to be in the average percent deviation range Δρ/ρ=±0.01-0.03%. The measurements are made with a new set up vibration-tube densimeter which is calibrated using double-distilled water (Wagner and Pruß, 2002), methanol [(de Reuck and Craven, 1993), (Osada et al., 1999) and (Yokoyama and Uematsu, 2003)] and aqueous NaCl solutions [(Archer, 1992) and (Hilbert, 1979)]. Based on these measurements, an empirical expression for the density of seawater at high salinities has been developed as a function of salinity, pressure and temperature. The results can be used to extend the present equation of state of seawater to higher temperatures for pressure up to 140MPa.
KW - Density
KW - Equation of state
KW - Salinity
KW - Seawater
KW - Vibration tube densimeter
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U2 - 10.1016/j.dsr.2012.03.010
DO - 10.1016/j.dsr.2012.03.010
M3 - Article
AN - SCOPUS:84861021584
VL - 65
SP - 146
EP - 156
JO - Deep-Sea Research Part I: Oceanographic Research Papers
JF - Deep-Sea Research Part I: Oceanographic Research Papers
SN - 0967-0637
ER -