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DHAT Tutorial

Policy Development Using DHAT Results

Science behind DHAT

Model Implementation
screen grab from DHAT The Oregon Department of Land Conservation and Development created a decision support tool based on an existing foredune erosion model and traditional ground survey beach elevation data. The NOAA Coastal Services Center modified this tool and added LIDAR data, to combine a science-based decision support tool with cutting-edge remote sensing technology. This union resulted in a product, the Dune Hazard Assessment Tool (DHAT), that can help coastal managers identify the relative risk to properties from coastal erosion.
  • The Dune Hazard Assessment Tool is a GIS tool (in the form of an ArcView® extension) that allows coastal planners to predict the impact of erosion on oceanfront properties and developments. The DHAT Tutorial (in PDF format, for easy printing) describes how to run DHAT.
  • Policy Development Using DHAT Results describes how the results of DHAT can be incorporated with other data layers in a GIS, and how policy decisions may be made.
  • Science behind DHAT describes the erosion model, and the meaning of the various parameters.
Download the Dune Hazard Assessment Tool

The Dune Hazard Assessment Tool was initially released as part of the CD-ROM entitled Topographic LIDAR: An Emerging Beach Management Tool. The CD-ROM contains background information and a tutorial with supporting ArcView® projects and data that may be helpful in understanding how to use the tool.

Order this CD_ROM.