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Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines

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Swansea University Author: Thomas Lake Orcid Logo

Abstract

Marine renewable energy is a topic of growing interest in academic and commercial contexts, with a number of different devices and technologies under development and in various stages of consenting and deployment. One of the many challenges faced by this emerging industry lies in the understanding o...

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Published: 2017
URI: https://cronfa.swan.ac.uk/Record/cronfa34558
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first_indexed 2017-07-05T20:13:30Z
last_indexed 2018-02-09T05:24:49Z
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spelling 2017-07-05T18:05:43.6830000 v2 34558 2017-07-05 Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines be1d57f705e41548bf1f1ef6551acc90 0000-0003-3045-3652 Thomas Lake Thomas Lake true false 2017-07-05 MECH Marine renewable energy is a topic of growing interest in academic and commercial contexts, with a number of different devices and technologies under development and in various stages of consenting and deployment. One of the many challenges faced by this emerging industry lies in the understanding of the environment in which these devices are deployed in, both in terms of the physical environment and the local ecology.This work presents the research, development and testing of a new Individual Based Model (IBM) framework developed to mimic the habitat usage of marine mammals in energetic tidal sites. In particular, the model has been developed with the aim of investigating the potential impacts of tidal stream turbines on harbour porpoise in coastal areas.The model makes use of existing tidal/coastal models to define a simulation environment within which boids (objects representing the animals being simulated) can be released and their behaviour and motion tracked. This data has been taken from results of simulations carried out using the TELEMAC shallow water model, with the addition of data representing food availability and additional noise levels. Simulations using this IBM have then been carried out to examine the variation in statistical measures of the simulated population based on different sample sizes, and to examine the effect of different model parameters on simulation results.A case study is presented based on the area around Ramsey Sound, an area where a tidal stream turbine has recently been deployed. The results presented here show a promising initial comparison of simulation outputs against observational data from the site. A final set of results show small but detectable changes in habitat use by the simulated porpoise resulting from the addition of a noise source representing a generic tidal stream device. Thesis IBM, Marine Energy, Tidal Stream, Simulation, Modelling 31 5 2017 2017-05-31 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2017-09-05T15:29:13.8723697 2017-07-05T18:04:43.7622666 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Thomas Lake 0000-0003-3045-3652 1 0034558-05072017180543.pdf thesis.pdf 2017-07-05T18:05:43.6830000 Output 17757021 application/pdf Version of Record true 2017-05-31T00:00:00.0000000 true eng
title Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines
spellingShingle Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines
Thomas Lake
title_short Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines
title_full Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines
title_fullStr Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines
title_full_unstemmed Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines
title_sort Computational Modelling of Interactions of Marine Mammals and Tidal Stream Turbines
author_id_str_mv be1d57f705e41548bf1f1ef6551acc90
author_id_fullname_str_mv be1d57f705e41548bf1f1ef6551acc90_***_Thomas Lake
author Thomas Lake
author2 Thomas Lake
format Staff Thesis
publishDate 2017
institution Swansea University
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description Marine renewable energy is a topic of growing interest in academic and commercial contexts, with a number of different devices and technologies under development and in various stages of consenting and deployment. One of the many challenges faced by this emerging industry lies in the understanding of the environment in which these devices are deployed in, both in terms of the physical environment and the local ecology.This work presents the research, development and testing of a new Individual Based Model (IBM) framework developed to mimic the habitat usage of marine mammals in energetic tidal sites. In particular, the model has been developed with the aim of investigating the potential impacts of tidal stream turbines on harbour porpoise in coastal areas.The model makes use of existing tidal/coastal models to define a simulation environment within which boids (objects representing the animals being simulated) can be released and their behaviour and motion tracked. This data has been taken from results of simulations carried out using the TELEMAC shallow water model, with the addition of data representing food availability and additional noise levels. Simulations using this IBM have then been carried out to examine the variation in statistical measures of the simulated population based on different sample sizes, and to examine the effect of different model parameters on simulation results.A case study is presented based on the area around Ramsey Sound, an area where a tidal stream turbine has recently been deployed. The results presented here show a promising initial comparison of simulation outputs against observational data from the site. A final set of results show small but detectable changes in habitat use by the simulated porpoise resulting from the addition of a noise source representing a generic tidal stream device.
published_date 2017-05-31T03:42:53Z
_version_ 1763751990041509888
score 11.013148

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