Internal tide generation by abyssal hills using analytical theory

Internal tide generation by arbitrary two-dimensional topography

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. To date, analytical models of internal tide generation by two-dimensional ridges have considered only idealized sha...

Abyssal hills: Influence of topography on benthic foraminiferal assemblages

Internal wave generation in a global baroclinic tide model

The energy flux out of barotropic tides and into internal waves (‘‘conversion’’) is computed using a global domain multi-layer numerical model. The solution is highly baroclinic and reveals a global field of internal waves radiating way from generation sites of rough topography. A small number of sites where intense internal wave generation occurs accounts for most of the globally integrated wo...

A three-dimensional map of tidal dissipation over abyssal hills

The breaking of internal tides is believed to provide a large part of the power needed to mix the abyssal ocean and sustain the meridional overturning circulation. Both the fraction of internal tide energy that is dissipated locally and the resulting vertical mixing distribution are crucial for the ocean state, but remain poorly quantified. Here we present a first worldwide estimate of mixing d...

Internal tide generation at the continental shelf modelled using a modal decomposition: two-dimensional results

Stratified flow over topography is studied, with oceanic applications in mind. We develop a model for a fluid with arbitrary vertical stratification and a free surface, flowing over threedimensional topography of arbitrary size and steepness, with background rotation, in the linear hydrostatic regime. The model uses an expansion of the flow fields in terms of a set of basis functions which effi...