Assessment of urban flood vulnerability using the social-ecological-technological systems framework in six US cities

Heejun Chang, Arun Pallathadka, Jason Sauer, Nancy B. Grimm, Rae Zimmerman, Chingwen Cheng, David M. Iwaniec, Yeowon Kim, Robert Lloyd, Timon McPhearson, Bernice Rosenzweig, Tiffany Troxler, Claire Welty, Ryan Brenner, Pablo Herreros-Cantis

Research output: Contribution to journalArticlepeer-review

Abstract

As urban populations continue to grow through the 21st century, more people are projected to be at risk of exposure to climate change-induced extreme events. To investigate the complexity of urban floods, this study applied an interlinked social-ecological-technological systems (SETS) vulnerability framework by developing an urban flood vulnerability index for six US cities. Indicators were selected to reflect and illustrate exposure, sensitivity, and adaptive capacity to flooding for each of the three domains of SETS. We quantified 18 indicators and normalized them by the cities’ 500-yr floodplain area at the census block group level. Clusters of flood vulnerable areas were identified differently by each SETS domain, and some areas were vulnerable to floods in more than one domain. Results are provided to support decision-making for reducing risks to flooding, by considering social, ecological, and technological vulnerability as well as hotspots where multiple sources of vulnerability coexist. The spatially explicit urban SETS flood vulnerability framework can be transferred to other regions facing challenging urban floods and other types of environmental hazards. Mapping SETS flood vulnerability helps to reveal intersections of complex SETS interactions and inform policy-making for building more resilient cities in the face of extreme events and climate change impacts.

Original languageEnglish (US)
Article number102786
JournalSustainable Cities and Society
Volume68
DOIs
StatePublished - May 2021

Keywords

  • Mapping
  • Resilience
  • Social-ecological-technological systems
  • Urban flood
  • Vulnerability

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Civil and Structural Engineering
  • Renewable Energy, Sustainability and the Environment
  • Transportation

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