Impacts of global climate change on the future ocean wave power potential : a case study from the Indian Ocean

Karunarathna, Harshinie and Maduwantha, Pravin and Kamranzad, Bahareh and Rathnasooriya, Harsha and De Silva, Kasun (2020) Impacts of global climate change on the future ocean wave power potential : a case study from the Indian Ocean. Energies, 13 (11). en13113028. ISSN 1996-1073 (https://doi.org/10.3390/en13113028)

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Abstract

This study investigates the impacts of global climate change on the future wave power potential, taking Sri Lanka as a case study from the northern Indian Ocean. The geographical location of Sri Lanka, which receives long-distance swell waves generated in the Southern Indian Ocean, favors wave energy-harvesting. Waves projected by a numerical wave model developed using Simulating Waves Nearshore Waves (SWAN) wave model, which is forced by atmospheric forcings generated by an Atmospheric Global Climate Model (AGCM) within two time slices that represent "present"and "future"(end of century) wave climates, are used to evaluate and compare present and future wave power potential around Sri Lanka. The results reveal that there will be a 12-20% reduction in average available wave power along the south-west and south-east coasts of Sri Lanka in future. This reduction is due mainly to changes to the tropical south-west monsoon system because of global climate change. The available wave power resource attributed to swell wave component remains largely unchanged. Although a detailed analysis of monthly and annual average wave power under both "present"and "future"climates reveals a strong seasonal and some degree of inter-annual variability of wave power, a notable decadal-scale trend of variability is not visible during the simulated 25-year periods. Finally, the results reveal that the wave power attributed to swell waves are very stable over the long term.

ORCID iDs

Karunarathna, Harshinie, Maduwantha, Pravin, Kamranzad, Bahareh ORCID logoORCID: https://orcid.org/0000-0002-8829-6007, Rathnasooriya, Harsha and De Silva, Kasun;
  • Item type:Article
    ID code:84401
    Dates:
    Date
    Event
    11 June 2020
    Published
    4 June 2020
    Accepted
    Notes:Funding Information: Funding: Financial support was provided by Swansea University, UK through the Global Challenge Research Fund to the project titled “Wave energy resource characterization for Sri Lanka in a changing ocean climate”, to conduct the research presented in this paper. PM was partially supported by the Senate Research Committee Grant SRC/ST/2019/55 provided the University of Moratuwa, Sri Lanka. Funding Information: Acknowledgments: Nalin Wickramanayake of the Open University of Sri Lanka and Sujeewa Ranawaka of the Department of Coast Conservation and Coastal Resource Management of Sri Lanka provided measured wave data for model validation. Japan Meteorological Agency is acknowledged for sharing atmospheric model outputs to run the wave models. Bahareh Kamranzad is supported by the Hakubi Center for Advanced Research at Kyoto University and JSPS Grants-in-Aid for Scientific Research (KAKENHI), the Ministry of Education, Culture, Sports, Science, and Technology-Japan (MEXT). Publisher Copyright: © 2020 by the authors. Karunarathna, H.; Maduwantha, P.; Kamranzad, B.; Rathnasooriya, H.; De Silva, K. Impacts of Global Climate Change on the Future Ocean Wave Power Potential: A Case Study from the Indian Ocean. Energies 2020, 13, 3028. https://doi.org/10.3390/en13113028
    Subjects:Technology > Hydraulic engineering. Ocean engineering
    Department:Faculty of Engineering > Civil and Environmental Engineering
    Depositing user: Pure Administrator
    Date deposited:23 Feb 2023 16:13
    Last modified:11 Nov 2024 13:45
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/84401
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