CSIRO Marine Research MATLAB Seawater Software Library (2006)

Brief description

The SeaWater library of EOS-80 seawater properties is obsolete; it has been superseded by the Gibbs SeaWater (GSW) Oceanographic Toolbox of the International Thermodynamic Equation Of Seawater - 2010, (TEOS-10). The official site for the thermodynamic properties of seawater is www.TEOS-10.org. TEOS-10 is based on a Gibbs function formulation from which all thermodynamic properties of seawater (density, enthalpy, entropy sound speed, etc.) can be derived in a thermodynamically consistent manner. TEOS-10 has been endorsed by SCOR and IAPSO and has been adopted by the Intergovernmental Oceanographic Commission at its 25th Assembly in June 2009 (http:///www.teos-10.org/pubs/IOC-XXV-3_e.pdf) to replace EOS-80 as the official description of seawater and ice properties in marine science. A significant change compared with past practice is that TEOS-10 uses Absolute Salinity SA (mass fraction of salt in seawater) as opposed to Practical Salinity SP (which is essentially a measure of the conductivity of seawater) to describe the salt content of seawater. Ocean salinities now have units of g/kg. The GSW Oceanographic Toolbox, http://www.teos-10.org/software.htm has almost 100 functions, such as density, entropy, enthalpy, Conservative Temperature, buoyancy frequency, and various geostrophic streamfunctions. Historical Releases of the now-obsolete SeaWater library. SEAWATER Library Version 3.0 (for Matlab 5.x onwards) is a Library of MATLAB Computational Routines for the EOS-80 Properties of Seawater. Developed by Phil Morgan, CSIRO Marine Research, updated and maintained by Lindsay Pender [email protected] Last updated 2006. LIST OF ROUTINES: - SW_ADTG Adiabatic temperature gradient - SW_ALPHA Thermal expansion coefficient (alpha) - SW_AONB Calculate alpha/beta (a on b) - SW_BETA Saline contraction coefficient (beta) - SW_BFRQ Brunt-Vaisala Frequency Squared (N^2) - SW_COPY Copyright and Licence file - SW_CP Heat Capacity (Cp) of Sea Water - SW_DENS Density of sea water - SW_DENS0 Denisty of sea water at atmospheric pressure - SW_DIST Distance between two lat, lon coordinates - SW_DPTH Depth from pressure - SW_F Coriolis factor "f" - SW_FP Freezing Point of sea water - SW_G Gravitational acceleration - SW_GPAN Geopotential anomaly - SW_GVEL Geostrophic velocity - SW_INFO Information on the SEAWATER library - SW_PDEN Potential Density - SW_PRES Pressure from depth - SW_PTMP Potential temperature - SW_SALS Salinity of sea water - SW_SALT Salinity from cndr, T, P - SW_SATAr Solubility (saturation) of Ar in seawater -SW_SATN2 Solubility (saturation) of N2 in seawater - SW_SATO2 Solubility (saturation) of O2 in seawater - SW_SVAN Specific volume anomaly - SW_SVEL Sound velocity of sea water - SW_SMOW Denisty of standard mean ocean water (pure water) - SW_TEMP Temperature from potential temperature - SW_TEST Run test suite on library - SW_VER Version number of SEAWATER library LOW LEVEL ROUTINES CALLED BY ABOVE: (also available for you to use) - SW_C3515 Conductivity at (35,15,0) - SW_CNDR Conductivity ratio R = C(S,T,P)/C(35,15,0) - SW_SALDS Differiential Ds/d(sqrt(Rt)) at consta

Full description

Documentation Link - Seawater Library version history and download page