uleysky@gmail.com Michael Uleysky The Gibbs-SeaWater (GSW) Oceanographic Toolbox contains the TEOS-10 subroutines for evaluating the thermodynamic properties of pure water (using IAPWS-09) and seawater (using IAPWS-08 for the saline part). The GSW library does not provide properties of ice or moist air (these properties can be found in the SIA library). This GSW Oceanographic Toolbox does not adhere to strict basic-SI units but rather oceanographic units are adopted.