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An Observation of Gravitational Collapse Caused by Turbulent Mixing
Publisher: American Meteorological Society
Abstract: A turbulent mixing layer, presumed to be caused by strong shear due to inertial waves, was observed from the research submarine USS Dolphin. As a consequence of the mixing, a density flux was set up. Although inertial waves ...
Stratified Turbulence near a Critical Dissipation Rate
Publisher: American Meteorological Society
Abstract: Turbulence in the thermocline was investigated using data observed by the submarine Dolphin. Various length scales, the Reynolds and the Froude numbers of the Dolphin data were compared to those values of a laboratory ...
Direct Estimation of Heat Flux in a Seasonal Thermocline
Publisher: American Meteorological Society
Abstract: This paper reports on a direct measurement of the turbulent heat flux. The sampling was from a submarine that used a conventional airfoil probe to measure the vertical component of turbulent velocity and a thermistor probe ...
Turbulence in the California Undercurrent
Publisher: American Meteorological Society
Abstract: Vertical profiles of microstructure velocity over the San Diego Trough showed enhanced levels of kinetic energy dissipation in the intrusive region between the California Undercurrent and the surface California Current. ...
Why Oceanic Dissipation Rates Are Not Lognormal
Publisher: American Meteorological Society
Abstract: In their derivation of the lognormal probability density function for volume-averaged dissipation rates, Gurvich and Yaglom assumed explicitly that these dissipation rates are statistically homogeneous and that the averaging ...
A Comparison of Turbulence Data from a Submarine and a Vertical Profiler
Publisher: American Meteorological Society
Abstract: The dissipation rate of kinetic energy, ?, was estimated from adjacent and simultaneous measurements with a submarine and a vertical profiler. The submarine cycled up and down through the water column measuring both a ...
A Method to Estimate Three-Dimensional Thermal Structure from Satellite Altimetry Data
Publisher: American Meteorological Society
Abstract: A new empirical method to estimate mesoscale three-dimensional oceanic thermal structures from near-real-time satellite altimetry data is presented. The method uses a two-layer model with a novel set of empirical parameters ...
A New Free-Fall Profiler for Measuring Biophysical Microstructure
Publisher: American Meteorological Society
Abstract: This paper evaluates the performance of a newly developed free-falling microstructure profiler. The instrument is equipped with standard turbulence sensors for measuring turbulent velocity shear and temperature gradient, ...
An Estimation of Buoyancy Flux for a Mixture of Turbulence and Double Diffusion
Publisher: American Meteorological Society
Abstract: Microstructure measurements were made in the Mixed Water Region of the Oyashio/Kuroshio/Tsugaru currents system where both turbulence and double diffusion are involved in mixing. While intense turbulence is observed near ...
Calibrating the Spatial Response of Bio-Optical Sensors
Publisher: American Meteorological Society
Abstract: This article describes an experimental method used to establish the spatial wavenumber response of in situ fluorometers. The method is applied to a fluorometer developed to measure the structure of the fluorescence field ...