CSIRO Marine Research MATLAB Seawater Software Library (2006)
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The SeaWater library of EOS-80 seawater properties is obsolete; it has been superseded by the Gibbs SeaWater (GSW) Oceanographic Toolbox of the International Thermodynamic Equation Of Seawater - 2010, (TEOS-10).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 Lindsay.pender@csiro.au 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
EOS-80海水属性的SeaWater库已过时，现已被国际海水热力学方程2010（International Thermodynamic Equation Of Seawater - 2010, TEOS-10）的Gibbs海水（Gibbs SeaWater, GSW）海洋学工具箱所取代。海水热力学属性的官方网站为www.TEOS-10.org。TEOS-10基于吉布斯函数公式，可通过热力学自洽的方式推导海水的全部热力学属性，包括密度、焓、熵、声速等。TEOS-10已获得国际海洋科学研究委员会（Scientific Committee on Oceanic Research, SCOR）与国际海洋物理科学协会（International Association for the Physical Sciences of the Oceans, IAPSO）的认可，并于2009年6月在政府间海洋学委员会第25次大会上被采纳，以取代EOS-80作为海洋科学领域海水与冰属性的官方描述标准（详见http://www.teos-10.org/pubs/IOC-XXV-3_e.pdf）。 与以往实践相比，TEOS-10的一项重大变化是采用绝对盐度（Absolute Salinity, SA）来表征海水盐含量，而非实用盐度（Practical Salinity, SP）——后者本质上为海水电导率的测量指标。当前海洋盐度的计量单位为g/kg。 GSW海洋学工具箱（http://www.teos-10.org/software.htm）包含近100个函数，涵盖密度、熵、焓、保守温度、浮力频率以及各类地转流函数等。 现已过时的SeaWater库历史版本：SEAWATER库3.0版（适用于Matlab 5.x及以上版本）是用于EOS-80海水属性的MATLAB计算程序库，由澳大利亚联邦科学与工业研究组织海洋研究部的Phil Morgan开发，后由Lindsay Pender更新维护（邮箱：Lindsay.pender@csiro.au），最后更新时间为2006年。 程序列表： - SW_ADTG：绝热温度梯度 - SW_ALPHA：热膨胀系数（α） - SW_AONB：计算热膨胀系数与盐收缩系数的比值 - SW_BETA：盐收缩系数（β） - SW_BFRQ：布伦特-维萨拉频率平方（N²） - SW_COPY：版权与许可文件 - SW_CP：海水定压热容（Cp） - SW_DENS：海水密度 - SW_DENS0：大气压下的海水密度 - SW_DIST：两个经纬度坐标间的距离 - SW_DPTH：由压强计算深度 - SW_F：科里奥利参数f - SW_FP：海水冰点 - SW_G：重力加速度 - SW_GPAN：位势异常 - SW_GVEL：地转流速 - SW_INFO：SEAWATER库相关信息 - SW_PDEN：位势密度 - SW_PRES：由深度计算压强 - SW_PTMP：位温 - SW_SALS：海水盐度 - SW_SALT：由电导率、温度、压强计算盐度 - SW_SATAr：氩在海水中的溶解度（饱和浓度） - SW_SATN2：氮气在海水中的溶解度（饱和浓度） - SW_SATO2：氧气在海水中的溶解度（饱和浓度） - SW_SVAN：比容异常 - SW_SVEL：海水声速 - SW_SMOW：标准平均海水（纯水）的密度 - SW_TEMP：由位温计算实际温度 - SW_TEST：运行库测试套件 - SW_VER：SEAWATER库版本号 低级子程序：上述程序所调用的子程序（也可供用户直接使用）： - SW_C3515：(35,15,0)条件下的电导率 - SW_CNDR：电导率比R = C(S,T,P)/C(35,15,0) - SW_SALDS：恒定条件下Ds/d(√Rt)的微分（原文未完整表述）
