Monitoring and modelling the morphodynamic evolution of a breached barrier beach system

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dc.contributor.advisorLewis, Anthonyen
dc.contributor.advisorMurphy, Jamesen
dc.contributor.authorO'Shea, Patrick Michael
dc.date.accessioned2016-12-08T11:59:25Z
dc.date.available2016-12-08T11:59:25Z
dc.date.issued2015
dc.date.submitted2015
dc.description.abstractPredicting the evolution of a coastal cell requires the identification of the key drivers of morphology. Soft coastlines are naturally dynamic but severe storm events and even human intervention can accelerate any changes that are occurring. However, when erosive events such as barrier breaching occur with no obvious contributory factors, a deeper understanding of the underlying coastal processes is required. Ideally conclusions on morphological drivers should be drawn from field data collection and remote sensing over a long period of time. Unfortunately, when the Rossbeigh barrier beach in Dingle Bay, County Kerry, began to erode rapidly in the early 2000’s, eventually leading to it breaching in 2008, no such baseline data existed. This thesis presents a study of the morphodynamic evolution of the Inner Dingle Bay coastal system. The study combines existing coastal zone analysis approaches with experimental field data collection techniques and a novel approach to long term morphodynamic modelling to predict the evolution of the barrier beach inlet system. A conceptual model describing the long term evolution of Inner Dingle Bay in 5 stages post breaching was developed. The dominant coastal processes driving the evolution of the coastal system were identified and quantified. A new methodology of long term process based numerical modelling approach to coastal evolution was developed. This method was used to predict over 20 years of coastal evolution in Inner Dingle Bay. On a broader context this thesis utilised several experimental coastal zone data collection and analysis methods such as ocean radar and grain size trend analysis. These were applied during the study and their suitability to a dynamic coastal system was assessed.en
dc.description.statusNot peer revieweden
dc.description.versionAccepted Version
dc.format.mimetypeapplication/pdfen
dc.identifier.citationO'Shea, P. M, 2015. Monitoring and modelling the morphodynamic evolution of a breached barrier beach system. PhD Thesis, University College Cork.en
dc.identifier.endpage316en
dc.identifier.urihttps://hdl.handle.net/10468/3359
dc.languageEnglishen
dc.language.isoenen
dc.publisherUniversity College Corken
dc.rights© 2015, Patrick Michael O'Shea.en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/en
dc.subjectMorphologyen
dc.subjectErosionen
dc.subjectDingle Bayen
dc.subjectRossbeighen
dc.subjectCoastal engineeringen
dc.subjectCoastal modellingen
dc.subjectSediment transporten
dc.subjectWave radaren
dc.thesis.opt-outfalse
dc.titleMonitoring and modelling the morphodynamic evolution of a breached barrier beach systemen
dc.typeDoctoral thesisen
dc.type.qualificationlevelDoctoralen
dc.type.qualificationnamePHD (Engineering)en
ucc.workflow.supervisorczi@ucc.ie
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