Baroclinic modes over rough bathymetry and the surface deformation radius

JH LaCasce, S Groeskamp - Journal of Physical …, 2020 - journals.ametsoc.org
The deformation radius is widely used as an indication of the eddy length scale at different
latitudes. The radius is usually calculated assuming a flat ocean bottom. However …

The vertical structure of ocean eddies

MS de La Lama, JH LaCasce… - Dynamics and Statistics of …, 2016 - academic.oup.com
Velocity data from 81 globally-distributed current meters are used to characterize the vertical
structure of ocean current fluctuations. The primary empirical orthogonal functions from most …

A multidimensional spectral description of ocean variability

C Wortham, C Wunsch - Journal of physical oceanography, 2014 - journals.ametsoc.org
An updated empirical, analytical model for the frequency and wavenumber distribution of
balanced motion in the ocean is presented. The spectrum model spans periods longer than …

Jet instability over smooth, corrugated, and realistic bathymetry

JH Lacasce, J Escartin… - Journal of Physical …, 2019 - journals.ametsoc.org
The stability of a horizontally and vertically sheared surface jet is examined, with a focus on
the vertical structure of the resultant eddies. Over a flat bottom, the instability is mixed …

The role of surface potential vorticity in the vertical structure of mesoscale eddies in wind-driven ocean circulations

W Zhang, SM Griffies, RW Hallberg… - Journal of Physical …, 2024 - journals.ametsoc.org
The vertical structure of ocean eddies is generally surface-intensified, commonly attributed
to the dominant baroclinic modes arising from the boundary conditions (BCs). Conventional …

Vertical structure of ocean mesoscale eddies with implications for parameterizations of tracer transport

Z Stanley, SD Bachman… - Journal of Advances in …, 2020 - Wiley Online Library
Abstract The Gent–McWilliams parameterization is commonly used in global ocean models
to model the advective component of tracer transport effected by unresolved mesoscale …

Mixed topographic-planetary waves in a stratified ocean on a background flow

VG Gnevyshev, VS Travkin, TV Belonenko - Pure and Applied Geophysics, 2024 - Springer
The work presents the development of Rhines' theory for mixed topographic-planetary
waves in a stratified ocean on a background current. The vertical anisotropy of baroclinic …

Spin-down of a barotropic vortex by irregular small-scale topography

T Radko - Journal of Fluid Mechanics, 2022 - cambridge.org
This study examines the impact of small-scale irregular topographic features on the
dynamics and evolution of large-scale barotropic flows in the ocean. A multiscale theory is …

Observed oceanic surface modes in the northern South China Sea

Q Quan, Z Liu, H Xue, J Hu, Q Wang… - Journal of Physical …, 2023 - journals.ametsoc.org
Using observations and theoretical models, a substantial topographic modulation on the
quasigeostrophic (QG) dynamics, which results in a primary surface mode distinct from the …

Baroclinic motions and energetics as measured by altimeters

C Wunsch - Journal of Atmospheric and Oceanic Technology, 2013 - journals.ametsoc.org
Small surface displacements appearing in tide gauge and altimetric records are used to
detect hydrostatic baroclinic modes in the ocean. Those deflections are a small fraction of …