Research NewsEarth Science

Elusive Ocean Mixing Nabbed

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Science  10 Jan 1997:
Vol. 275, Issue 5297, pp. 160
DOI: 10.1126/science.275.5297.160b

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SAN FRANCISCO—Oceanographers have had a hard time identifying where and how the oceans' deep, salty bottom waters mix with the overlying warmer layers. But a deep-diving instrument package has discovered a clue, researchers reported last month at the American Geophysical Union meeting here: a zone of intense mixing over a region of rugged ocean bottom off Brazil, 5600 meters down. By churning the overlying waters, regions of rough bottom may account for much of the oceans' missing mixing.