Project Examples:Landscape Visualizations & Scenario Modeling Lex Ivey, President
DAM REMOVAL VISUALIZATIONElwha River Dam Removal VisualizationAmerican Rivers hired TerraCognito GIS to visually model two hillshade rasterproposed dam removals on the Elwha River in Washington’sOlympic National Park. TerraCognito created interactive, photo-realistic, 3D visualization of existing conditions, as well as various random color rampstages of dam removal, including draw-down, riverbed restoration,and re-vegetation. The visualizations were used extensively byAmerican Rivers throughout the settlement negotiation process andin meetings with legislators, ultimately resulting in the impending photo-realremoval of the Glines Canyon and Elwha dams. Commencing in sediment texture2011, the dismantling of the Elwha and Glines Canyon dams willallow the river to flow freely for the first time in 100 years, restoringover 70 miles of salmon and steelhead habitat. Existing conditions Dam removal / Reservoir draw down Restored river channel
WILDFIRE MITIGATION Cost-Benefit Model Landscape Visualization of Forest TreatmentRay Mesa Wildfire MitigationThe Bureau of Land Managements Moab, Utah Field Office hired Lex Ivey to model fire hazard mitigation for RayMesa, examining the effectiveness of various treatment alternatives, as well as their associated fiscal, socioeconomic,and visual impacts. The consultant defined and weighted several criteria to identify areas that would benefit most fromfire mitigation practices. By embedding fuel model data formulated by the U.S. Forest Service (USFS) into the model,the consultant was able to compare current fuel loads in the forest with those that would remain after various types oftreatments, such as prescribed burning and mechanical and manual thinning. The model allowed the BLM to measurethe effectiveness and cost of the various treatment types, as well as the contribution to the local economy in terms ofcontract labor. The visual impacts of each fire treatment alternative could also be seen in a regional, photo-realistic 3Dvisualization. The methods, results, methods, and discussion culminated in a satellite television broadcast to allBLM offices across the nation.
DAM REMOVAL VISUALIZATIONKlamath River Dam Removal VisualizationAmerican Rivers hired TerraCognito GIS to visually model two hillshadeproposed dam removals on the Klamath River in California. elevationInteractive, real-time, 3D visualization of existing conditions were slopecreated, as well as various stages of dam removal, including draw-down, riverbed restoration, and re-vegetation. aspectThe visualizations were used extensively by American Riversthroughout the settlement negotiation process and in meetings photo-realwith legislators, and in “inspiring” potential funders who may be restoration texturecalled upon to help with the costs of restoration.In November 2008 PacifiCorp (power company), the federalgovernment, and the states of California and Oregon signed anAgreement in Principle stating that the benefits of dam removaloutweigh the potential costs and impacts. Existing conditions Dam removal / Reservoir draw down Restored river channel
NATURAL HAZARD/RISK MODELING Land Use Allocation Model Landscape Visualization of Debris Flow and Future Growth ScenarioSquamish Natural Hazard/Risk CharacterizationThe Geologic Survey of Canada hired TerraCognito GIS to model a variety of natural hazardsand their imposed risk for Squamish, British Columbia. LIDAR Data, Satellite Imagery,Assessor’s records, and detailed geophysical data were compiled into CommunityViz to create adynamic, interactive hazard/risk characterization tool that modeled future residential andcommercial growth scenarios in the context of risk. Potential loss from flood, debris flow andsea level rise scenarios were analyzed and visualized to compare and contrast mitigationmeasures versus relocation of personal property.
FLOOD HAZARD/RISK MODELING Hazard/Risk Assessment Model Normal Conditions 10-year FloodKaycee Flood Risk AssessmentThe Natural Resource Conservation Service hiredTerraCognito GIS to model flood hazard and risk forKaycee, Wyoming. LIDAR Data, Satellite Imagery,Assessor’s records, and detailed flood survey data were 50-year Floodcompiled into CommunityViz to create a dynamic,interactive hazard/risk characterization tool. Potentialloss from three flood scenarios were analyzed andvisualized to compare and contrast flood mitigationmeasures versus relocation of personal property. 100-year Flood
DAM REMOVAL VISUALIZATIONColumbia River Dam Removal Visualization Existing conditionsAmerican Rivers hired TerraCognito GIS to visually model twoproposed dam removals on the Columbia River in Idaho andWashington. Interactive, real-time, 3D visualization ofexisting conditions, as well as various stages of dam removal,including draw-down, riverbed restoration, and re-vegetation. Draw down Restored Channel