Shear-Induced Vertical Mixing in the Wyville Thomson Basin: A Study of its Driving Mechanisms, Strength and Influence

Direct observations of turbulent kinetic energy dissipation rate are presented and analysed in this thesis, along with some theoretical studies to aid their interpretation. Vertical mixing in the study region is strongly coupled with the internal tide, generated by flow over the local topographic features. Modelling work shows the strength of mixing calculated from the observations to be representative of the study region, hence allowing for an assessment to be made on the influence of such mixing on a larger scale. Sensitivity of a hydraulically controlled overflow to changes in density as a result of observed mixing and associated heat flux is considered. To understand the motivation for focusing on the small scale mixing in the Faroese channels, it is necessary first to introduce the importance of the overflow region from a global perspective.

Name dc:type.qualificationname

Doctor of Philosophy (awarded by OU/Aberdeen)

Level dc:type.qualificationlevel

Doctoral Thesis

Grantor dc:publisher.institution

University of Edinburgh

Year dc:date.issued

2011

Author dc:creator

• Venables, Emily Joanne

Advisors dc:contributor.advisor

• Inall, Mark
• Tirrell, Bill

Language dc:language

eng

Identifier

oai:pure.atira.dk:studenttheses/3113b6f7-8564-4887-9995-e04792c5472b

OAI identifier oai:identifier

oai:pure.atira.dk:studenttheses/3113b6f7-8564-4887-9995-e04792c5472b