nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (1): toevoegen | toon Print deze pagina

one publication added to basket [245603]
Instability observations associated with wave breaking in the stable-stratified deep-ocean
van Haren, H. (2015). Instability observations associated with wave breaking in the stable-stratified deep-ocean. Physica D. 292-293: 62–69. dx.doi.org/10.1016/j.physd.2014.11.002
In: Physica D: Nonlinear Phenomena. Elsevier: Amsterdam. ISSN 0167-2789; e-ISSN 1872-8022, meer
Peer reviewed article  

Beschikbaar in  Auteur 

Author keywords
    High-resolution temperature observations; Breaking internal waves; Rayleigh–Taylor instabilities in stable stratification; Deep-ocean topography

Auteur  Top 
  • van Haren, H., meer

Abstract
    High-resolution temperature observations above underwater topography in the deep, stably stratified ocean have revealed two distinctive turbulence processes. These processes are associated with different phases of a large-scale (here tidal) internal gravity wave: (i) highly nonlinear turbulent bores during the upslope propagating phase, and (ii) Kelvin–Helmholtz billows, at some distance above the slope, during the downslope phase. Whilst the former may be associated in part with convective turbulent overturning following Rayleigh–Taylor instabilities ‘RTi’, the latter is mainly related to shear-induced Kelvin–Helmholtz instabilities. In this paper, details are particularly presented of rare (convective) RTi penetrating stable density stratification under high-frequency internal waves. Such ‘apparent RTi’ can be explained using both stability parameterization of entrainment across a density interface, and, more relevant here, internal wave acceleration overcoming the reduced gravity.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteur 
IMIS is ontwikkeld en wordt gehost door het VLIZ, voor meer informatie contacteer .