Laboratory study of circulation and upwelling in tidally-forced, shallow water island wakes

Research output: ThesisDoctoral Thesis

223 Downloads (Pure)

Abstract

Topographic complexity on continental shelves is the catalyst that transforms the tide into secondary circulations that dominate vertical and cross-shelf mixing processes. Island wakes are an example that significantly influence material transport, but no mechanistic description of shallow, tidally-forced island wake formation exists. Novel and systematic laboratory experiments show here that island wake form is controlled by an unsteady stability parameter, with upwelling accurately predicted through an Ekman pumping model from the bed. The complex tapestry of upwelling and secondary circulations explain why island wakes are regions of greatly enhanced productivity, biodiversity and trophic aggregation.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Thesis sponsors
Award date2 Jul 2019
DOIs
Publication statusUnpublished - 2019

Fingerprint

upwelling
shallow water
Ekman pumping
continental shelf
tide
transform
catalyst
biodiversity
productivity
laboratory

Cite this

@phdthesis{e02c51e5cc3e43a08c52cfcb7d92449d,
title = "Laboratory study of circulation and upwelling in tidally-forced, shallow water island wakes",
abstract = "Topographic complexity on continental shelves is the catalyst that transforms the tide into secondary circulations that dominate vertical and cross-shelf mixing processes. Island wakes are an example that significantly influence material transport, but no mechanistic description of shallow, tidally-forced island wake formation exists. Novel and systematic laboratory experiments show here that island wake form is controlled by an unsteady stability parameter, with upwelling accurately predicted through an Ekman pumping model from the bed. The complex tapestry of upwelling and secondary circulations explain why island wakes are regions of greatly enhanced productivity, biodiversity and trophic aggregation.",
keywords = "island wakes, shallow flow, topographic effects, upwelling, continental shelf, three dimensional, PIV, flume",
author = "Branson, {Paul M.}",
year = "2019",
doi = "10.26182/5d2d1cfb28224",
language = "English",
school = "The University of Western Australia",

}

TY - THES

T1 - Laboratory study of circulation and upwelling in tidally-forced, shallow water island wakes

AU - Branson, Paul M.

PY - 2019

Y1 - 2019

N2 - Topographic complexity on continental shelves is the catalyst that transforms the tide into secondary circulations that dominate vertical and cross-shelf mixing processes. Island wakes are an example that significantly influence material transport, but no mechanistic description of shallow, tidally-forced island wake formation exists. Novel and systematic laboratory experiments show here that island wake form is controlled by an unsteady stability parameter, with upwelling accurately predicted through an Ekman pumping model from the bed. The complex tapestry of upwelling and secondary circulations explain why island wakes are regions of greatly enhanced productivity, biodiversity and trophic aggregation.

AB - Topographic complexity on continental shelves is the catalyst that transforms the tide into secondary circulations that dominate vertical and cross-shelf mixing processes. Island wakes are an example that significantly influence material transport, but no mechanistic description of shallow, tidally-forced island wake formation exists. Novel and systematic laboratory experiments show here that island wake form is controlled by an unsteady stability parameter, with upwelling accurately predicted through an Ekman pumping model from the bed. The complex tapestry of upwelling and secondary circulations explain why island wakes are regions of greatly enhanced productivity, biodiversity and trophic aggregation.

KW - island wakes

KW - shallow flow

KW - topographic effects

KW - upwelling

KW - continental shelf

KW - three dimensional

KW - PIV

KW - flume

U2 - 10.26182/5d2d1cfb28224

DO - 10.26182/5d2d1cfb28224

M3 - Doctoral Thesis

ER -