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Comparison of extended and ensemble based Kalman filters with low and high resolution primitive equation ocean models
Kalman filters low and high resolution primitive equation ocean models
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2009/11/11
Kalman filters are widely used for data assimilation into ocean models. The aim of this study is to discuss the relevance of these filters with high resolution ocean models. This was investigated thro...
Detecting unstable structures and controlling error growth by assimilation of standard and adaptive observations in a primitive equation ocean model
unstable structures error growth standard and adaptive observations primitive equation ocean model
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2009/11/9
Oceanic and atmospheric prediction is based on cyclic analysis-forecast systems that assimilate new observations as they become available. In such observationally forced systems, errors amplify depend...
Eddies and the General Circulation of an Idealized oceanic Gyre：A Wind and Thermally Driven Primitive Equation Numerical Experiment
General Circulation Idealized oceanic Gyre Equation Numerical Experiment
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2009/3/7
We present the results of a multi-level, constant depth, primitive equation general ocean numerical circulation simulation with mesoscale resolution. A single mid-latitude model gyre is driven by wind...
Intercomparison of Quasi-Geostrophic Simulations of the Western North Atlantic Circulation with Primitive Equation Results
Western North Atlantic Circulation Primitive Equation Results
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2009/2/23
The purpose of this paper is to compare two numerical models of vastly different complexity and computational requirements, which have been used recently in a number of midlatitude ocean simulations. ...
Melting of Ice in Sea Water：A Primitive Model with Application to the Antarctic Ice Shelf and Icebergs
Sea Water Icebergs Antarctic Ice Shelf
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2009/2/11
Steady-state conditions are assumed to exist everywhere in the case of melting of the underside of an infinite slab of ice floating in sea water. Basic transfer equations for heat and salt are establi...
Parameter Sensitivity of Primitive Equation Ocean General Circulation Models
Primitive Equation Ocean General Circulation Models Parameter Sensitivity
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2009/1/7
Experiments with a low resolution, primitive equation ocean general circulation model with idealized basin geometry and surface forcing have been carried out in order to identify the processes control...
Regional Primitive Equation Studies of the Gulf Stream Meander and Ring Formation Region
Gulf Stream Meander Ring Formation Region Primitive equation
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2008/12/27
Primitive equation and quasi-geostrophic eddy resolving, open ocean models are used for hindcast studies in the Gulf Stream meander and ring formation region. A feature model approach is used to initi...
A Nested Primitive Equation Model for Oceanic Applications
Primitive Equation Model Oceanic Applications
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2008/12/23
An interactive, nested primitive equation model for oceanic applications is introduced. The model has two components that interact, which we shall call the coarse and the fine grid regions. The fine g...
Eddy Dynamics in a Primitive Equation Model：Sensitivity to Horizontal Resolution and Friction
primitive equation model mesoscale eddies Eddy Dynamics
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2008/12/22
A primitive equation model of an idealized ocean basin, driven by simple, study wind and buoyancy forcing at the surface, is used to study the dynamics of mesoscale eddies. Model statistics of a six-y...
Continuous Assimilation of Geosat Altimeter Data into a Three-Dimensional Primitive Equation Gulf Stream Model
Geosat Altimeter Data three-dimensional data Gulf Stream Model
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2008/12/15
A three-dimensional data assimilation scheme is described and tested, using the Geosat altimeter data and a high-resolution, primitive equation, numerical ocean model of the Gulf Stream region. The as...
Assimilation of Altimeter Data in a Two-Layer Primitive Equation Model of the Gulf Stream
sea surface height Altimeter Data Two-Layer Primitive Equation Model Gulf Stream
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2008/12/15
A two-layer finite depth, primitive equation model of the Gulf Stream region is used to study the effect of updating the model with simulated altimeter data as observations. In this study both a compl...
Two-Way Interactive Nesting of Primitive Equation Ocean Models with Topography
Two-Way Interactive Nesting Topography Primitive Equation Ocean Models
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2008/12/12
Two-way interactive nesting of primitive equation ocean models is investigated, with special attention to the problems encountered when oceanic features, for example fronts, intersect the boundaries b...
Seasonal Heat Transport in a Primitive Equations Model of the Tropical Indian Ocean
Seasonal Heat Transport Tropical Indian Ocean Primitive Equations Model
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2008/12/11
This work analyses seasonal heat transport in an ocean-only numerical simulation of the Indian Ocean forced by realistic seasonal winds and surface heat fluxes north of 15°S, assuming no Indonesian Th...
Mean Circulation and Internal Variability in an Ocean Primitive Equation Model
Ocean Primitive Equation Model World Ocean model ocean circulation
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2008/12/9
A primitive equation World Ocean model has been integrated with restoring boundary conditions to reach a steady state. The global distribution of potential temperature, salinity, and meridional stream...
Primitive Equation Instability of Wide Oceanic Rings. Part I：Linear Theory
Wide Oceanic Rings Linear Theory Asymptotic theory
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2008/11/18
The linear stability of two-layer primitive equation ocean rings is considered in the case when the rings are wide compared with a deformation radius, as is usually observed. Asymptotic theory is deve...