The density of North Atlantic and North Pacific deep waters

Frank J. Millero, Augustin Gonzalez, Peter G. Brewer, Alvin Bradshaw

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

The densities of seventeen samples of seawater from GEOSECS stations 27 (North Atlantic) and 217 (North Pacific) have been measured with a vibrating flow densimeter at 25°C. The densities of the deep samples were found to be 5 ± 1.5 and 16 ± 3.6 ppm greater, for the North Atlantic and North Pacific, respectively, than predicted by the equation of state of Millero, Gonzalez and Ward (1976) derived for seawaters of constant relative composition. The results are in good agreement with the density anomalies predicted by Brewer and Bradshaw (1975) on the basis of the observed increase of dissolved silica, alkalinity and total carbon dioxide in oceanic deep waters. The application of these corrections results in an agreement with the Millero, Gonzalez and Ward (1976) equation of state to ±4 ppm.

Original languageEnglish (US)
Pages (from-to)468-472
Number of pages5
JournalEarth and Planetary Science Letters
Volume32
Issue number2
DOIs
StatePublished - Oct 1976

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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