Chromium-51 as a Radioactive Tracer of Columbia River Water at Sea.
The plume of the Columbia River was followed 350 kilometers to sea by measurement of its chromium-51 content. This radioactive tag, introduced into the river by nuclear reactors at Hanford, Washington, promises to provide a useful oceanographic tool for determining rates of transport and mixing, and for identifying plume waters in the presence of other sources of fresh water.
Osterberg
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Cutshall
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Cronin
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