Perspectives of a global, dynamic exposure model for geo-risk assessment from remote sensing to crowd-sourcing

The aim of the paper is to assess the challenge of implementing a global exposure model for different geo-hazards at the global scale within a dynamic, scalable framework. A global exposure model able to evolve would lay the basis for global vulnerability and risk assessment by providing reliable, standardised information on the exposed assets across a vast range of hazards.

The authors make the following recommendations to sketch a road-map towards the effective implementation of global, dynamic exposure databases (p. 20):

  • A stronger collaborative effort among the world´s disaster risk reduction institutions is advocated to implement a unified exposure taxonomy, largely independent on the particular hazard.
  • Rapid, large-scale data collection based on remote sensing should be fully exploited and whenever possible be integrated with in-situ information, employing multi-source and scale data sampling methodologies.
  • Authoritative and non-authoritative sources should be integrated while ensuring quality standards and compliance with disaster risk reduction purposes.
  • Exposure-collection should be regarded as a continuous process that is constantly evolving over space and time.
  • Data and (statistical) models must coexist in a statistically sound framework in order to overcome the infeasibility of having a complete and fully enumerated global dynamic exposure database.
  • Validation and quality assessment should be carefully assessed throughout the collection-description-dissemination process.

This document is an input paper of the 2015 Global Assessment Report on Disaster Risk Reduction.

Date:
2014
Author(s):
Pittore, M.; Wieland, M.; Fleming, K.
Pages:
29 p.
Sources:

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Keywords

Themes:
Information Management, Risk Identification & Assessment
Regional Platforms for Disaster Risk Reduction take place from Africa to the Pacific Regional Platforms for Disaster Risk Reduction take place from Africa to the Pacific.
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