Application of a new methodology for coastal multi-hazard-assessment and management on the state of Karnataka, India

Lars Rosendahl Appelquist, Thomas Balstrom

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    Abstract

    This paper presents the application of a new Methodology for coastal multi-hazard assessment & management under a changing global climate on the state of Karnataka, India. The recently published methodology termed the Coastal Hazard Wheel (CHW) is designed for local, regional and national hazard screening in areas with limited data availability, and covers the hazards of ecosystem disruption, gradual inundation, salt water intrusion, erosion and flooding. The application makes use of published geophysical data and remote sensing information and is showcasing how the CHW framework can be applied at a scale relevant for regional planning purposes. It uses a GIS approach to develop regional and sub-regional hazard maps as well as to produce relevant hazard risk data, and includes a discussion of uncertainties, limitations and management perspectives. The hazard assessment shows that 61 percent of Kamataka's coastline has a high or very high inherent hazard of erosion, making erosion the most prevalent coastal hazard. The hazards of flooding and salt water intrusion are also relatively widespread as 39 percent of Karnataka's coastline has a high or very high inherent hazard for both of these hazard types. (C) 2014 The Authors. Published by Elsevier Ltd.
    Original languageEnglish
    JournalJournal of Environmental Management
    Volume152
    Pages (from-to)1-10
    Number of pages10
    ISSN0301-4797
    DOIs
    Publication statusPublished - 2015

    Bibliographical note

    © 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license

    Keywords

    • Karnataka India, Asia Oriental region
    • ecosystem disruption
    • gradual inundation
    • salt water intrusion
    • 07504, Ecology: environmental biology - Bioclimatology and biometeorology
    • Environmental Sciences
    • Coastal Hazard Wheel method laboratory techniques
    • remote sensing applied and field techniques
    • Climatology
    • Methods and Techniques
    • ENVIRONMENTAL
    • SOUTHERN KARNATAKA
    • SHORELINE CHANGES
    • Coastal hazard assessment
    • Climate change
    • India
    • Coastal planning
    • Coastal Hazard Wheel

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