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Estimation of structural vulnerability for flooding using geospatial tools in the rural area of Orissa, India

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Listed:
  • Praveen Thakur
  • Sreyasi Maiti
  • Nanette Kingma
  • V. Hari Prasad
  • S. Aggarwal
  • Ashutosh Bhardwaj

Abstract

Vulnerability assessment of natural disasters is a crucial input for risk assessment and management. In the light of increasing frequency of disasters, societies must become more disaster resilient. This research tries to contribute to this aim. For risk assessment, insight is needed into the hazard, the elements at risk and their vulnerabilities. This study focused on the estimation of structural vulnerability due to flood for a number of structural elements at risk in the rural area of Orissa, India (Kendrapara), using a community-based approach together with geospatial analysis tools. Sixty-three households were interviewed about the 2003 floods in 11 villages and 166 elements at risk (buildings) were identified. Two main structural types were identified in the study area, and their vulnerability curves were made by plotting the relationships between flood depth and vulnerability for each structural type. The vulnerability ranges from 0 (no damage) to 1 (collapse/total damage). Structural type-1 is characterized by mud wall/floor material and a roof of paddy straw, and structural type-2 is characterized by reinforced cement concrete (RCC) walls/floor and a RCC roof. The results indicate that structural type-1 is most vulnerable for flooding. Besides flood depth, flood duration is also of major importance. Houses from structural type-1 were totally collapsed after 3 days of inundation. Damage of the houses of structural type-2 began after 10 days of inundation. Copyright Springer Science+Business Media B.V. 2012

Suggested Citation

  • Praveen Thakur & Sreyasi Maiti & Nanette Kingma & V. Hari Prasad & S. Aggarwal & Ashutosh Bhardwaj, 2012. "Estimation of structural vulnerability for flooding using geospatial tools in the rural area of Orissa, India," 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. 61(2), pages 501-520, March.
    • Handle: RePEc:spr:nathaz:v:61:y:2012:i:2:p:501-520
    DOI: 10.1007/s11069-011-9932-3
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    References listed on IDEAS

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    1. Rodney White & David Etkin, 1997. "Climate Change, Extreme Events and the Canadian Insurance Industry," 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. 16(2), pages 135-163, November.
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    Cited by:

    1. Sananda Kundu & S. Aggarwal & Nanette Kingma & Arun Mondal & Deepak Khare, 2015. "Flood monitoring using microwave remote sensing in a part of Nuna river basin, Odisha, India," 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. 76(1), pages 123-138, March.

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