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

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dc.contributor.advisor Lewis, Anthony en
dc.contributor.advisor Murphy, James en O'Shea, Patrick Michael 2016-12-08T11:59:25Z 2016-12-08T11:59:25Z 2015 2015
dc.identifier.citation O'Shea, P. M, 2015. Monitoring and modelling the morphodynamic evolution of a breached barrier beach system. PhD Thesis, University College Cork. en
dc.identifier.endpage 316 en
dc.description.abstract Predicting 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.format.mimetype application/pdf en
dc.language English en
dc.language.iso en en
dc.publisher University College Cork en
dc.rights © 2015, Patrick Michael O'Shea. en
dc.rights.uri en
dc.subject Morphology en
dc.subject Erosion en
dc.subject Dingle Bay en
dc.subject Rossbeigh en
dc.subject Coastal engineering en
dc.subject Coastal modelling en
dc.subject Sediment transport en
dc.subject Wave radar en
dc.title Monitoring and modelling the morphodynamic evolution of a breached barrier beach system en
dc.type Doctoral thesis en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PHD (Engineering) en
dc.internal.availability Full text available en No embargo required en
dc.description.version Accepted Version
dc.description.status Not peer reviewed en Civil Engineering en
dc.check.type No Embargo Required
dc.check.reason No embargo required en
dc.check.opt-out Not applicable en
dc.thesis.opt-out false
dc.check.embargoformat Not applicable en
dc.internal.conferring Summer 2015 en

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© 2015, Patrick Michael O'Shea. Except where otherwise noted, this item's license is described as © 2015, Patrick Michael O'Shea.
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