forecast reliability is known to be the highly variable and this variability can be traced in part to differences in the innate predictability of atmospheric flow regimes. These differences in turn have traditionally been ascribed to variation in the...
Minimising forecast error requires accurately specifying the initial state from which the forecast is made by optimally using available observing resources to obtain the most accurate possible analysis. The Kalman filter accomplishes this for linear sys...
Stochastic structural stability theory (S3T) provides analytical methods for understanding the emergence and equilibration of jets from the turbulence in planetary atmospheres based on the dynamics of the statistical mean state of the turbulence closed at...
Obtaining a physically based understanding of the variations with spatial scale of the amplitude and dispersive properties of midlatitude transient baroclinic waves and the heat flux associated with these waves central goal of dynamic meteorology and...
The stability of the Gulf Stream flow is predicted by a nonlinear quasigeopstophic model is examined by employing an interactive method, which uses both the tangent linear equations and the adjoint tangent linear equations of the quasigestrophic model...
Development of perturbations in a baroclinic flow can arise both from exponential instability and from the transient growth of favorably configured disturbances that are not of the normal mode form. The transient growth mechanism is able to account for...
Data Assimilation, P. P. Brasseur and J. C. J. Nihoul Eds., Springer-Verlag, Berlin The goal of the project on stability of ocean flows is to develop the theory of linear stability appropriate for understanding the growth of perturbations in dynamical...
the asymptotic response of the Charney barcolinic instability problem to a localized perturbation is determined using the formalism of Briggs (1964) and exploiting a recently obtained highly accurate WKB approximate dispersion relation (Lindzen and...
This work explores the formation and growth of waves on oceanic flows using a quasigeostrophic model. In participial, we consider flow regimes consisting of zonal oceanic jets, similar in face to the westward extension of the Gulf stream. Traditionally...
The authors explore the hypothesis that nonlinear eddy interactions in quasigeosptrophic turbulence can be parameterized as a stochastic excitation plus an augmented dissipation in a statistically stationary equilibrium. The focus primarily on models...
