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successful application of CASA’s consensus decision-making process to develop air<br />

quality policies in Alberta. Finally, this paper will explore the relative success of these<br />

projects and argue three common factors help explain why some succeeded while others<br />

struggled. These factors are important considerations to any organization or stakeholder<br />

considering consensus decision-making processes for air quality issues.<br />

Keywords: consensus decision-making, air quality, policy, stakeholder<br />

Restoring Our Relationship With Earth (72)<br />

S. Gorg; EDN, Saint Paul, MN<br />

This presentation will investigate the necessary transition towards a harmonious existence<br />

with our natural environment. To re-establish this harmony, we will discuss the<br />

implementation of ecologically based standards as we move from a human view to an<br />

ecological view of the world where each transaction inherently restores the water, air,<br />

soil, and habitats to health and indefinite sustainability.<br />

Sustainability Of Wetlands Resources Based On LIDAR Mapping (215)<br />

K. Krenz, R. Gordon; AECOM Technology Group Inc., Houston, TX<br />

Advanced GIS processing of high resolution topography data was used to assess wetland<br />

hydrology and sustainability on 3,000 acres within floodplain of Trinity River, Texas.<br />

Rapid forested wetland hydrology assessment to plan for environmental sustainability is<br />

difficult using conventional methods. High resolution topography datasets, such as Light<br />

Detection and Ranging (LiDAR), offer a unique view of the topography and hydrology<br />

beneath the forest canopy and can assist with planning for and sustaining environmental<br />

functions of these natural resources. Preservation of these resources and inclusion into the<br />

U.S. National Wildlife Refuge System was a sustainability objective dependent on the<br />

nature and function as well as hydrology of these forested areas.<br />

High resolution LiDAR topography data was collected between watersheds of the Trinity<br />

River, Cedar Bayou, Luce Bayou, and Lake Houston. This topography data was<br />

processed using the ‘fill sinks’ grid processing tool inside the ArcHydro extension for<br />

ArcGIS version 9.3. The ‘fill sinks’ function analyzes an elevation grid and identifies<br />

depressions or sinks where water collects representative of wetland hydrology, wet soils,<br />

and wetland ecosystems. The ‘fill sinks’ function determines the extent of these sinks<br />

resources and flow of water patterns. Areas showing as large depressions are pervasive<br />

wetlands, dense concentrations of sinks represent dispersed mosaic wetland.<br />

Field investigations of wetlands were based on LiDAR data. The methodology used<br />

represented correlation of wetlands resources to small-scale hydrological variations<br />

identified. The analysis proved to identify predominant wetland features related to<br />

hydrologic connections and mosaic wetlands eligible for preservation as a national<br />

resource.<br />

34

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