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Disaster Risk Mapping: A Desk Review of Global Best Practices and Evidence for South Asia

Author

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  • Giriraj Amarnath

    (International Water Management Institute (IWMI), 127 Sunil Mawatha, Battaramulla, Colombo 10120, Sri Lanka)

  • Upali A. Amarasinghe

    (International Water Management Institute (IWMI), 127 Sunil Mawatha, Battaramulla, Colombo 10120, Sri Lanka)

  • Niranga Alahacoon

    (International Water Management Institute (IWMI), 127 Sunil Mawatha, Battaramulla, Colombo 10120, Sri Lanka)

Abstract

The frequency, intensity, and variability of natural hazards are increasing with climate change. Detailed sub-national information on disaster risks associated with individual and multi-hazards enables better spatial targeting of adaptation and mitigation measures. This paper reviews the global best practices of disaster risk mapping (DRM) to assess the nature and magnitude of disasters, and the vulnerability and risks at the sub-national level in South Asian countries. While some global DRMs focus on vulnerability, others assess risks. Most DRMs focus on national-level vulnerability and risks. Those which focus on the sub-national risks have a limited scope and different methodologies for evaluating risks, mainly in relation to the population. Climate change exposes not only people but also many infrastructures, assets and their impacts to disaster risk. For DRMs to be useful tools for sub-national planning, they require a coherent methodology and a high-resolution spatial focus. The vulnerability and risk assessments should focus on different aspects, including population, infrastructure, and assets in various economic sectors of agriculture, industry, and services.

Suggested Citation

  • Giriraj Amarnath & Upali A. Amarasinghe & Niranga Alahacoon, 2021. "Disaster Risk Mapping: A Desk Review of Global Best Practices and Evidence for South Asia," Sustainability, MDPI, vol. 13(22), pages 1-23, November.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:22:p:12779-:d:682628
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    References listed on IDEAS

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    3. Govindan, Rajesh & Al-Ansari, Tareq, 2019. "Computational decision framework for enhancing resilience of the energy, water and food nexus in risky environments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 112(C), pages 653-668.
    4. Alahacoon, Niranga & Matheswaran, Karthikeyan & Pani, Peejush & Amarnath, Giriraj, "undated". "A decadal historical satellite data and rainfall trend analysis (2001–2016) for flood hazard mapping in Sri Lanka," Papers published in Journals (Open Access) H048581, International Water Management Institute.
    5. Meinhard Breiling, 2021. "Global rural value chains and the role of natural disasters in their transformation," Journal of Social and Economic Development, Springer;Institute for Social and Economic Change, vol. 23(3), pages 540-567, December.
    6. Yongdeng Lei & Jing’ai Wang & Yaojie Yue & Hongjian Zhou & Weixia Yin, 2014. "Rethinking the relationships of vulnerability, resilience, and adaptation from a disaster risk perspective," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 70(1), pages 609-627, January.
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    Cited by:

    1. Nicoleta Radu & Felicia Alexandru, 2022. "Parametric Insurance—A Possible and Necessary Solution to Insure the Earthquake Risk of Romania," Risks, MDPI, vol. 10(3), pages 1-16, March.

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