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Simultaneous Current-Temperature Profiles in the Equatorial Counter Current

Henry PerkinsRosentiel School of Marine and Atmospheric Science, University of Miami, Miami, Fla. 33149

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John Van LeerRosentiel School of Marine and Atmospheric Science, University of Miami, Miami, Fla. 33149

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Abstract

Serial current and temperature measurements were made during the Global Atmospheric Research Program Atlantic Tropical Experiment (GATE) with unattended autonomous profilers (Cyclesondes) in the North Equatorial Counter Current between 0 and 200 m depth near 9°N, 23°W during September 1974. The data show a rich vertical structure in which internal semidiurnal tides are prominent and inertial waves are seen propagating downward. Patches of isothermal water in the extremely sharp thermocline are advected past the mooring site, suggesting intense vertical mixing in this area.

Abstract

Serial current and temperature measurements were made during the Global Atmospheric Research Program Atlantic Tropical Experiment (GATE) with unattended autonomous profilers (Cyclesondes) in the North Equatorial Counter Current between 0 and 200 m depth near 9°N, 23°W during September 1974. The data show a rich vertical structure in which internal semidiurnal tides are prominent and inertial waves are seen propagating downward. Patches of isothermal water in the extremely sharp thermocline are advected past the mooring site, suggesting intense vertical mixing in this area.

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