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RISCirculation and Dynamics of the Western North Atlantic. Part II: Dynamics of Meanders and Rings
Publisher: American Meteorological Society
Abstract: A multiparameter kinematic synthesis of multiscale feature models for the circulation of the western North Atlantic was developed in Part I of this study. The dispersion characteristics and dynamical behavior of this ...
Circulation and Dynamics of the Western North Atlantic. Part III: Forecasting the Meanders and Rings
Publisher: American Meteorological Society
Abstract: The multiscale feature models (MSFMs) developed for the circulation of the western North Atlantic (Part I) have been used for initialization in this study to forecast the Gulf Stream meanders and rings. The Harvard primitive ...
The Baroclinic Instability of the Open Ocean
Publisher: American Meteorological Society
Abstract: Baroclinic instability is examined in a two-layer, quasi-geostrophic model for linearized mesoscale waves (i.e., with periods of a few months and length scales near the internal deformation radius). The mid-ocean wave ...
Transient Gulf Stream Meandering. Part II: Analysis via a Quasi-Geostrophic Time-Dependent Model
Publisher: American Meteorological Society
Abstract: Simultaneous path and bottom velocity measurements made during the Transient Meander Experiment, reported in Part I, are analyzed in terms of a quasi-geostrophic thin jet model of the meandering Gulf Stream. The theory ...
Analysis Models for the Estimation of Oceanic Fields
Publisher: American Meteorological Society
Abstract: A general model for statistically optimal estimates is presented for dealing with scalar, vector and multivariale datasets. The method deals with anisotropic fields and treats space and time dependence equivalently. Problems ...
Dynamical Forecast Experiments with a Barotropic Open Ocean Model
Publisher: American Meteorological Society
Abstract: The initial/boundary value problem for the barotropic version of a quasi-geostrophic open ocean model which requires normal flow everywhere on the boundary and vorticity on the inflow is studied. Parameter dependencies and ...
Boundary-Forced Planetary Waves: A Simple Model Mid-Ocean Response to Strong Current Variability
Publisher: American Meteorological Society
Abstract: A simple linear model of the barotropic basin response to forcing imposed along the northern boundary is described. The dependence on latitude of the response may include oscillatory behavior or not, depending on whether ...
Data Assimilation via Error Subspace Statistical Estimation.Part I: Theory and Schemes
Publisher: American Meteorological Society
Abstract: A rational approach is used to identify efficient schemes for data assimilation in nonlinear ocean?atmosphere models. The conditional mean, a minimum of several cost functionals, is chosen for an optimal estimate. After ...
Transient Gulf Stream Meandering. Part I: An Observational Experiment
Publisher: American Meteorological Society
Abstract: The results from an observational experiment on the mesoscale space-time variability of the Gulf Stream are reported. Various techniques, including aerial surveys, ship trackings of the 15C isotherm at 200 m, drogues and ...