Cartographic Visualization of Vulnerability to Natural Hazards

Vulnerability to natural hazards has many components. It is about exposure to various natural disasters, but a place’s vulnerability also depends on its capacity to prepare for, respond to, and recover from shocks resulting from natural extreme events. To avoid increased place vulnerability due to the anticipated negative effects of climate change, local authorities need to know which places are the most vulnerable and what makes these areas vulnerable. We have developed ViewExposed to provide this information. Knowing where the most vulnerable areas are is very useful for local stakeholders, since these places may be most in need of adaptation strategies. However, stakeholders also need to have an understanding of what makes these areas vulnerable. ViewExposed provides this information using a parallel coordinates plot, a table view, sparklines, and a profile report. Although vulnerability assessment data are complex, ViewExposed has an easy-to-use interface facilitating a high degree of user interaction through multiple and linked views. An improved understanding of the many aspects of vulnerability has a far-reaching potential to inform users efficiently about factors that influence the overall vulnerability and, as a consequence, can help raise people’s awareness of what makes places vulnerable to natural threats. La vulnérabilité aux dangers naturels est constituée de nombreux éléments. C’est une question d’exposition à diverses catastrophes naturelles, mais la vulnérabilité d’un endroit dépend aussi de sa capacité de se préparer aux chocs découlant d’événements naturels extrêmes, d’y réagir et de s’en remettre. Afin d’éviter la vulnérabilité locale accrue à cause des effets négatifs prévus des changements climatiques, les autorités locales doivent connaître les endroits les plus vulnérables et les causes de leur vulnérabilité. Nous avons mis au point ViewExposed pour fournir cette information. Il est aussi très utile pour les intervenants locaux de connaître les endroits les plus vulnérables, car c’est peut-être à leur sujet qu’il faut le plus de stratégies d’adaptation. Les intervenants doivent toutefois comprendre aussi la cause de ces vulnérabilités. ViewExposed fournit ces renseignements en utilisant un tracé à coordonnées parallèles, une vue de tableau, des graphiques Sparklines et un rapport de profil. Même si les données d’évaluation de la vulnérabilité sont complexes, ViewExposed offre une interface facile à utiliser qui facilite une grande interaction entre les usagers grâce à des vues multiples et liées. Une compréhension améliorée des nombreux aspects de la vulnérabilité offre de vastes possibilités d’informer les usagers de façon efficiente au sujet de facteurs qui jouent sur la vulnérabilité globale et, par conséquent, peut aider à sensibiliser davantage les gens à ce qui rend des endroits vulnérables aux menaces naturelles.

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