| Volumes and Issues Contents of Issue 1 |
www.ocean-sci-discuss.net/1/1/2004/
doi:10.5194/osd-1-1-2004
© Author(s) 2004. This work is licensed
under a Creative Commons License.
Numerical implementation and oceanographic application of the Gibbs thermodynamic potential of seawater
Baltic Sea Research Institute, Seestraße 15, D-18119 Warnemünde, Germany
Abstract. The 2003 Gibbs thermodynamic potential function represents a very accurate, compact, consistent and comprehensive formulation of equilibrium properties of seawater. It is expressed in the International Temperature Scale ITS-90 and is fully consistent with the current scientific pure water standard, IAPWS-95. Source code examples in FORTRAN, C++ and Visual Basic are presented for the numerical implementation of the potential function and its partial derivatives, as well as for potential temperature. A collection of thermodynamic formulas and relations is given for possible applications in oceanography, from density and chemical potential over entropy and potential density to mixing heat and entropy production. For colligative properties like vapour pressure, freezing points, and for a Gibbs potential of sea ice, the equations relating the Gibbs function of seawater to those of vapour and ice are presented.
Discussion Paper (PDF, 321 KB) Supplement (15 KB) Interactive Discussion (Closed, 7 Comments) Final Revised Paper (OS)
Citation: Feistel, R.: Numerical implementation and oceanographic application of the Gibbs thermodynamic potential of seawater, Ocean Sci. Discuss., 1, 1-19, doi:10.5194/osd-1-1-2004, 2004. Bibtex EndNote Reference Manager XML
