A new high pressure equation of state for water and seawater has been derived from the experimental results of Millero and coworkers in Miami and Bradshaw and Schleicher in Woods Hole. The form of the equation of state is a second degree secant bulk modulus K = Pv0 (v0-vp=K0+AP+BP2K = Kw0+aS+bS 3 2A = Aw+cS+dS 3 2B = Bw+eS where ν0 and νP are the specific volume at 0 and P applied pressure and S is the salinity (א). The coefficients KWO, AW, and BW for the pure water part of the equation are polynomial functions of temperature. The standard error of the pure water equation of state is 4.3 × 10-6 cm3 g-1 in νWP. The temperature dependent parameters a, b, c, d, and e have been determined from the high pressure measurements on seawater. The overall standard error of the seawater equation of state is 9.0 × 10-6 cm3 g-1 in νP. Over the oceanic ranges of temperature, pressure, and salinity the standard error is 5.0 × 10-6 cm3 g-1 in νP. This new high pressure equation of state has recently (1979) been recommended by the UNESCO Joint Panel on Oceanographic Tables and Standards for use by the oceanographic community.
|Original language||English (US)|
|Number of pages||10|
|Journal||Deep Sea Research Part A, Oceanographic Research Papers|
|State||Published - Apr 1980|
ASJC Scopus subject areas
- Environmental Science(all)
- Earth and Planetary Sciences(all)