Image Gallery

• Soldier Canyon Debris Flow, July 2006, Tucson, Arizona.

• Dam Breach Flood Hazard, Fort Meyers, Florida.

• Distributary Flood Distributary Flooding.

• Taos Pueblo Inundation Mapping 2007.

• Dr. O'Brien (far left) participated in a panel discussion on the Present Status of Research in Debris Flow Hazard Prediction and Assessment at the Third International Conference on Debris-Flow Hazards Mitigation in Davos, Switzerland, September 2003.

• The FLO-2D® model can be used to create detailed overland inundation mapping for ocean storm surge or tsunami hazards and is particularly effective in urban areas where buildings, obstructions, streets and channels can affect the floodwave progression. The modeling detail provided by FLO-2D® exceeds that of other hydrodynamic models and the results include predicted flow depths, velocities, discharge hydrographs, dynamic and static pressure, specific energy, and area of inundation.

• This image indicates the maximum flow depths and area of inundation at the confluence of two creek channels in Arizona. This image was created using the Mapper post-processor program to create shaded color contours from the maximum flow depth for each grid element (50 ft square elements). A *.tif image of an aerial photo serves as the background.

• A research group in Switzerland developed mudflow velocity depth color images draped over a topographic map. The FLO-2D model predicted maximum velocity results for each grid element which were imported to a drawing file containing the topographic mapping.

• The 3-D view was prepared by first creating a TIN (triangular irregular network) from the maximum water surface elevations predicted by the FLO-2D model to create a smooth boundary between the water surface and the terrain. Both the water surface and terrain TINs were then converted to a grid with a 5 ft cell size. Using ArcView(r) spatial analyst, the elevation difference was computed between the water surface and the terrain grid.