Projects

ASA Project Gallery: COASTMAP Inundation Toolbox™

Visualizing Storm Surge Flooding: COASTMAP Inundation Toolbox™
Client
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Various industries, universities, non-profit organizations, and media outlets
Project Number
 
Project Elements
  • Vulnerability assessment
  • Coastal storm surge
  • Sea level rise
  • GIS visualization and animation
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Problem. Purpose.
ASA develops and uses computer models and simulations for solutions related to marine, freshwater, and terrestrial environments. Predicting and mapping the effects of coastal storms and climate change is an important issue because of the high vulnerability and impacts associated with many coastal and developed areas. With increasing property values, development, and population growth in urban and coastal flood prone areas, flood induced losses become greater, and ways to prevent or mitigate floods are vital.
COASTMAP Inundation Toolbox figure

Science. Services. Solutions.

Over the past two years, ASA has become involved in mapping the impacts of storm surge flooding.  The effort began in Boston, where the National Environmental Trust (NET) commissioned ASA to map the effects of a 100-year storm surge plus 100 years of sea level rise along the downtown coast.  ASA then mapped the effects of a Category II hurricane storm surge plus 100-years of sea level rise for Miami, Washington DC, and Manhattan.  ASA’s flooding images have been published in Vanity Fair, Surfing Magazine, the Boston Globe, and EPA reports; they have also appeared on CNN.
 
Using a custom ArcObjects tool developed by ASA, flood levels between today’s mean sea level and the final flood can be visualized and animated.  These visualizations can then be exported to GoogleEarth KML files and displayed in Google Earth as static images or animations.  Google Earth’s high resolution orthophotos models provide a realistic depiction of the various coastlines on which to display the flooding predictions.

The visualization process can be further automated by connecting ASA’s GIS tools to a storm surge model.  ASA’s COASTMAP Inundation Module is envisioned as a web based system that connects to various storm surge models using the COASTMAP Environmental Data Server (EDS) and then runs the appropriate inundation model to generate maps of areas at risk to the predicted surge.  These maps can be exported back to the EDS where they are easily distributed to the public via a variety of websites as well as automatically emailed to interested parties such as local planners, emergency workers, and television networks. These maps allow planners to better allocate resources and to publicize the risk to vulnerable areas while allowing the public to be proactive in preparing for flooding. 


Products. Results.
  • Custom ArcGIS® Flooding extension
  • COASTMAP EDS connection
  • Custom Google Earth flooding overlays