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Estuarine Overmixing
Publisher: American Meteorological Society
Abstract: H. Stommel and H. G. Farmer derived a theory for the maximal exchange between an estuary and the adjacent shelf sea based on a combination of mass and salt conservation (also known as Knudsen?s relation) and hydraulic ...
Suppression of Baroclinic Instabilities in Buoyancy-Driven Flow over Sloping Bathymetry
Publisher: American Meteorological Society
Abstract: aroclinic instabilities are ubiquitous in many types of geostrophic flow; however, they are seldom observed in river plumes despite strong lateral density gradients within the plume front. Supported by results from a ...
Relating River Plume Structure to Vertical Mixing
Publisher: American Meteorological Society
Abstract: The structure of a river plume is related to the vertical mixing using an isohaline-based coordinate system. Salinity coordinates offer the advantage of translating with the plume as it moves or expanding as the plume ...
Quantifying the Contributions of Tidal Straining and Gravitational Circulation to Residual Circulation in Periodically Stratified Tidal Estuaries
Publisher: American Meteorological Society
Abstract: This numerical modeling study quantifies for the first time the contribution of various processes to estuarine circulation in periodically stratified tidal flow under the impact of a constant horizontal buoyancy gradient. ...
The Effects of Rotation and River Discharge on Net Mixing in Small-Mouth Kelvin Number Plumes
Publisher: American Meteorological Society
Abstract: mall-mouth Kelvin number plumes, or plumes with a source width smaller than the deformation radius, are characterized by near-field plume regions of rapid lateral expansion and strong vertical mixing. Net plume mixing, or ...
An Idealized Study of the Structure of Long, Partially Mixed Estuaries
Publisher: American Meteorological Society
Abstract: Classic models of estuarine circulation are reexamined using a three-dimensional, primitive equation numerical ocean model. The model is configured using an idealized estuary/shelf domain with rectangular cross section, ...
Drivers of Residual Estuarine Circulation in Tidally Energetic Estuaries: Straight and Irrotational Channels with Parabolic Cross Section
Publisher: American Meteorological Society
Abstract: The generation of residual circulation in a tidally energetic estuary with constant longitudinal salinity gradient and parabolic cross section is examined by means of a two-dimensional cross-sectional numerical model, ...
Near-Inertial-Wave Critical Layers over Sloping Bathymetry
Publisher: American Meteorological Society
A Numerical Study of Sea-Breeze-Driven Ocean Poincare Wave Propagation and Mixing near the Critical Latitude
Publisher: American Meteorological Society
Abstract: Near the vicinity of 30° latitude, the coincidence of the period of sea breeze and the inertial period of the ocean leads to a maximum near-inertial ocean response to sea breeze. This produces a propagating inertial internal ...
Using an Isohaline Flux Analysis to Predict the Salt Content in an Unsteady Estuary
Publisher: American Meteorological Society
Abstract: AbstractAn estuary is classified as unsteady when the salinity adjustment time is longer than the forcing time scale. Predicting salt content or salt intrusion length using scaling arguments based on a steady-state ...