The Ocean's waters are 3 to 3.5 % salt.
Salt lowers the freezing temperature of water.
At 3.5 % salinity, water freezes at 28 degrees F (-2.2C).
|National Oceanographic Data Center, Global Temperature-Salinity Profile Program . A cooperative international project with Canada's Marine Environmental Data Service, the GTSPP seeks to develop and maintain a global ocean Temperature-Salinity resource with data that are both up-to-date and of the highest quality possible.|
|Argo is a global array of 3,000 free-drifting profiling floats that measures the temperature and salinity of the upper 2000 m of the ocean. This allows, for the first time, continuous monitoring of the temperature, salinity, and velocity of the upper ocean, with all data being relayed and made publicly available within hours after collection.|
|US CLIVAR "Role of Ocean Salinity in Climate." Two page intro. PDF.|
|US CLIVAR Salinity Science Working Group. Report July 2007. PDF.|
|Wood's Hole Oceanographical Institute "New Study Reports Large-scale Salinity Changes in the Oceans: Saltier tropical oceans and fresher ocean waters near the poles." Dec 2003.|
|Wood's Hole Oceanographical Institute. ''How Much Excess Fresh Water Was Added to the North Atlantic in Recent Decades?''|
|Oceanography magazine. March 2008, Volume 21, Number 1. Special Issue on Salinity. Cost 10 dollars.|
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