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Reflection of Internal Gravity Waves by small Density Variations
Internal Gravity Waves small Density Variations
2009/4/3
The propagation of small-amplitude internal gravity waves through a finite layer of varying Brunt-Väisälä frequency is analyzed. A two-scale analysis is used and it is shown that the am...
Bispectra and Cross-Bispectra of Temperature, Salinity, Sound Velocity and Density Fluctuations with Depth off Northeastern Japan
Temperature Salinity Sound Velocity Density Fluctuations
2009/4/2
Off northeastern Japan, depth profiles of temperature, salinity, sound velocity and density show considerable structure between 30 and 240 m. The structure is asymmetric with respect to the mean and t...
On North Pacific Temperature, Salinity, Sound Velocity and Density Fronts and their Relation to the Wind and Energy Flux Fields
North Pacific Temperature Sound Velocity Salinity Density Fronts Energy Flux Fields
2009/3/24
The main oceanic fronts of the North Pacific are investigated and the principal frontogenetic processes described. Fronts are features of the upper ocean and occur near mass transport and energy flux ...
Internal Wave Reflection by a Velocity Shear and Density Anomaly
Internal Wave Velocity Shear Density Anomaly
2009/3/24
Numerical solutions are obtained for the reflection of upward propagating internal waves by simple pycnocline and current shear models. Results for a simple monotonic shear and a velocity jet, with an...
Deep density-depth curves often show faint curvature reversals, stability maxima etc. Relationships between these features and the field of motion are explored here, in reference to the South Pacific,...
The Circulation Dynamics and Thermodynamics of Upper Ocean Density Fronts
Circulation Dynamics Thermodynamics Upper Ocean Density Fronts
2009/2/19
This paper extends a previous hydrodynamic circulation model of established, persistent upper ocean density fronts by including a thermodynamic or buoyancy equation in the integral treatment. An analy...
On the Stability of a Fluid with Specialized Density Stratification. Part II：Mixed Baroclinic-Barotropic Instability with Application to the Northeast Pacific
Density Stratification Mixed Baroclinic-Barotropic Instability Northeast Pacific
2009/2/18
Low-frequency motions (0.25 cpd) have recently been observed in Juan de Fuca Strait. The three-layer model developed in Part I of this paper is used to show that some of this activity may be due to an...
On the Stability of a Fluid with Specialized Density Stratification. Part I：Baroclinic Instability and Constant Bottom Slope
Specialized Density Stratification Baroclinic Instability Constant Bottom Slope
2009/2/16
A three-layer model is used to study the stability of large-scale oceanic zonal flows over topography. The mean density profile employed has upper and lower layers of constant densities ρ1* and ρ3*, r...
Coupling of Internal Wave Motion with Entrainment at the Density Interface of a Two-Layer Lake
Internal Wave Motion Two-Layer Lake Density Interface
2009/2/16
A solution is presented to the problem of a two-layer rectangular basin subject to a suddenly applied, uniform wind stress; Coriolis effects are ignored. The solution is obtained for the case in which...
A Spin-Up Model as a Diagnostic Tool for Interpretation of Current and Density Measurements on the Continental Shelf of the Pacific Northwest
Spin-Up Model Pacific Northwest Continental Shelf Diagnostic Tool
2009/2/16
The primary goal of this paper is to prescribe the practical limitations of the two-dimensional, baroclinic, time-dependent model of Hamilton and Rattray (1978) for the Oregon-Washington continental s...
Wind Mixing and Restratification in a Lake near the Temperature of Maximum Density
Wind Mixing Temperature Maximum Density
2009/2/10
The cooling of a freshwater take provides an opportunity for studying wind mixing and restratification under the peculiar conditions associated with a density maximum. The concepts are explored using ...
Effects of Density Front on the Generation and Propagation of Internal Tides
Density Front Internal Tides
2009/2/10
A numerical model is developed to study the internal tidal motion on the continental margin. The system includes irregular bottom topography and a horizontal density stratification maintained by a mea...
Cross-Front Mixing and Frontal Upwelling in a Controlled Quasi-Permanent Density Front in the Gulf of St. Lawrence
Cross-Front Mixing Quasi-Permanent Density Front Frontal Upwelling
2009/2/6
CTD data obtained from three transects across a controlled quasi-permanent density front in the Gulf of St. Lawrence were analyzed for the purpose of investigating cross-front mixing, mechanisms for f...
Self-Advection of Density Perturbations on a Sloping Continental Shelf
Density Perturbations Self-Advection Sloping Continental Shelf
2009/2/5
Bottom water movement on the continental shelf is modeled by the nonlinear interaction between long-shore bottom geostrophic flow and the density field. Bottom geostrophic velocity, subject to linear ...
Propagating Long Waves on Oceanic Density Fronts：An Analytic Model
Propagating Long Waves Oceanic Density Fronts Analytic Model
2009/1/21
An analytic model of long, propagating free-wave perturbations to an established upper ocean density front is developed. The primary purpose of the model is to illuminate basic frontal wave mechanisms...