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View Resource Shock Therapy with Seawater

This radio broadcast describes a technique called 'salinity shock' which is being used to kill plants and animals that ride in ballast water on ships. Oceangoing ships are now dumping their freshwater ballast at sea and taking on a new load of saltwater to kill and flush out stowaway organisms. The clip is 2 minutes in length and may be downloaded in MP3 format.

View Resource Why is the Ocean Salty?

This resource explains how the oceans became salty. Topics include the source of the salt, how rainwater dissolves rock and carries the material away as dissolved ions, and the two most common ions in seawater. A link to additional information is also provided.

View Resource Saline Water

This resource introduces students to the idea of saline water. Topics include how saline water is defined and how dissolved salt concentrations are expressed (parts per million). Parameters for the various ranges of salinity (fresh to highly saline, or seawater) are also presented, and there is a brief discussion of water quality considerations regarding saline water. Links to additional...

View Resource NASA Aquarius: Sea Surface Salinity from Space Education & Public Outreach

Aquarius is a focused satellite mission to measure global sea surface salinity. Launching in 2009, this mission will provide the first global map of sea surface salinity with unprecedented accuracy, resolution and coverage. The importance of salinity measurements in understanding coastal ocean processes is critical. Because of its dynamic range in the coastal oceans, salinity is a critical factor...

View Resource NOAA's National Oceanographic Data Center Online Data Access

Links to a variety of current oceanographic databases. Provides access to in situ and remotely sensed data, models, and a photo library from all over the world. Data available includes temperature, salinity, biological, nutrients, oxygen, and many more. View sea surface temperature animations, sea level changes, and plankton profiles for anywhere in the world. Data, graphs, and more are available...

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