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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...
A Criterion for Thermal Stratification in a Wind-Mixed System
Thermal Stratification Wind-Mixed System
2009/2/16
The onset of thermal stratification in an isohaline, wind-mixed water body is shown, by a simple model and observations, to be determined by the parameter u*3/hB′, where u* is the friction velocity of...
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...
On the Influence of Stratification and Continental Shelf and Slope Topography on the Dispersion of Subinertial Coastally Trapped Waves
Continental Shelf Slope Topography Subinertial Coastally Trapped Waves
2009/2/6
The behavior of subinertial, coastally trapped free waves in a continuously stratified ocean is examined using a two-slope topography in which the continental shelf and slope are each represented by a...
The characteristics of long, gravest mode trench waves in the presence of realistic stratification are investigated. Two examples are computed, representing cases with widely differing importance of b...
On the Role of Interior Mixing and Air-Sea Fluxes in Determining the Stratification and Circulation of the Oceans
Interior Mixing Stratification Circulation Air-Sea Fluxes
2009/1/12
The problem of determining the (eastern boundary) basic stratification and the buoyancy-driven circulation of the oceans is addressed. A global integral constraint relating the interior stratification...
Solutions of the Ideal Fluid Thermocline with Continuous Stratification
Ideal Fluid Thermocline Continuous Stratification
2009/1/10
From an examination of possible ways to satisfy the essential upper boundary conditions, a general way to solve the ideal fluid thermocline is proposed. Through specifying the functional relation betw...
Long-Term Observations on the Southern Flank of Georges Bank. Part I：A Description of the Seasonal Cycle of Currents, Temperature, Stratification, and Wind Stress
Long-Term Observations Georges Bank Seasonal Cycle Wind Stress
2009/1/7
Nearly continuous current measurements at 45 and 75 m were made from May 1975 to March 1979 at 40°51′N, 67°24′W on the southern flank of Georges Bank in water 85 m deep. Measurements at 15 and 84 m we...
The Effect of Varying Stratification on Low-Frequency Equatorial Motions
Low-Frequency Equatorial Motions equatorial wave phenomena
2009/1/5
A formalism is developed to examine the effect of zonally varying stratification on equatorial wave phenomena; an effect present in the real ocean but neglected from standard linear theory. The approa...
A One-Dimensional Time-Dependent Model for the Vertical Stratification of the Upper Arctic Ocean
One-Dimensional Time-Dependent Model Vertical Stratification Upper Arctic Ocean
2008/12/30
A one-dimensional time-dependent model of the upper Arctic Ocean is presented. It describes the circulation above a dynamically passive reservoir of Atlantic water. The model is driven by freshwater r...
Simple analytical and numerical models of gratified circulation are discussed. The models are driven by buoyancy and mechanical forcing, and buoyancy diffusion is parameterized in term of diapycnal ma...
The Role of Stratification in the Formation and Maintenance of Shelf-Break Fronts
Shelf-Break Fronts continental shelf stratified fluid
2008/12/22
A mechanism is described for the formation or a front at the edge of a continental shelf in an initially linearly stratified fluid lacking horizontal density gradients. A primitive equation numerical ...
The Influence of Stratification on the Inertial Recirculation
two-layer quasigeostrophic model inertial recirculation full basin model
2008/11/18
A two-layer quasigeostrophic model is used to investigate the influence of stratification on the inertial recirculation in a full basin model. It is found that the barotropic transport of the inertial...
Influence of Stratification upon Diurnal Tidal Currents in Shelf Edge Regions
Diurnal Tidal Currents Shelf Edge
2008/10/27
A three-dimensional stratified tidal model of the Hebrides shelf area off the west coast of Scotland is used to examine the spatial distribution of the M2, O1, and K1 tides in the region. The model ha...
The Influence of Stratification on the Wind-Driven Cross-Shelf Circulation over the North Carolina Shelf
Wind-Driven Cross-Shelf Circulation North Carolina Shelf
2008/7/31
Wind-driven, cross-shelf circulation is studied using current observations spanning the 90 km wide North Carolina shelf. Most of the shelf is less than 40 m deep. Current measurements were made at fiv...