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Variations in Apparent Mixing Efficiency in the North Atlantic Central Water
Publisher: American Meteorological Society
Abstract: Microstructure data from the North Atlantic Tracer Release Experiment (NATRE) are presented, providing detailed profiles of the thermal variance ? in the upper 360 m of the Canary Basin for the fall and spring seasons. The ...
Evolution of a Mediterranean Salt Lens: Scalar Properties
Publisher: American Meteorological Society
Abstract: The evolution of a Mediterranean salt lens (Meddy) over a two year period is examined. Several nondimensional numbers can be used to describe the overall decay in the structure of the Moddy. Two Rossby numbers, one using ...
Vertical Mixing in the Equatorial Pacific along 150°W in March 1988
Publisher: American Meteorological Society
Abstract: A meridional transect along 150°W in March 1988 revealed a statistically significant maximum in turbulent kinetic energy dissipation, ? at 1°S?0° between 40-m and 60-m depth. The wind stress and buoyancy flux were poorly ...
Estimates of Dissipation in the Ocean Mixed Layer Using a Quasi-Horizontal Microstructure Profiler
Publisher: American Meteorological Society
Abstract: Some recent measurements of the mixed layer in oceans and lakes have indicated that the rate of the dissipation of turbulent kinetic energy, ε, is much higher than expected from a purely shear-driven wall layer. This ...
Stirring by Small-Scale Vortices Caused by Patchy Mixing
Publisher: American Meteorological Society
Abstract: Evidence is presented that lateral dispersion on scales of 1?10 km in the stratified waters of the continental shelf may be significantly enhanced by stirring by small-scale geostrophic motions caused by patches of mixed ...
A Microstructure Instrument for Profiling Oceanic Turbulence in Coastal Bottom Boundary Layers
Publisher: American Meteorological Society
Abstract: A free-falling instrument has been built to measure temperature, salinity and turbulent shear from near surface to within 15 cm of the ocean bottom. A probe guard mounted at the lower end of the instrument protects sensitive ...
Two Years in the Life of a Mediterranean Salt Lens
Publisher: American Meteorological Society
Abstract: A lens of Mediterranean water (Meddy) was tracked in the eastern North Atlantic for two years with SOFAR floats. The Meddy was first found between the Canary Islands and the Azores in October 1984. It center moved in an ...