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Project ID: 05-4-1-12

Year: 2005

Date Started: 06/03/2005

Date Completed: 10/03/2007

Title: Innovative, 3-D, Interactive, and Immersive Techniques for Visualizing, Querying, and Understanding Regional Maps of Forest Vegetation, Fuels, and Fire Risk

Project Proposal Abstract: The Gradient Nearest Neighbor (GNN) method is a novel approach to regional-scale mapping of forest vegetation and fuels that has been applied to three study areas in the Western US under current JFSP funding (project number 1-1-4-09, to be completed 9/30/05). The GNN method uses multivariate gradient analysis and nearest-neighbor imputation to link regional inventory plots with satellite imagery and GIS maps of environmental and disturbance data. Each pixel in the resulting map is attributed with the nearest-neighbor plot's fine-scale vegetation and fuels data, allowing simultaneous and consistent prediction of a wide range of vegetation and fuels attributes, including input variables for most stand, landscape, fire risk and fire behavior models. Final GNN maps are available for two study areas and a review draft for the third. Transfer of map products has been through meetings with fuel specialists and forest managers in the three study areas, presentations at workshops and conferences, and through a manuscript and basic website to be developed by September 2005. However, communication with users during both development and technology transfer phases of our research has been hampered by the physical distance between investigators and users, by the complexity and novelty of the GNN map products, and by time limitations. We propose to develop and apply two innovative tools that will improve capabilities for communication between researchers and managers, and substantially enhance delivery and use of our own and similar research products: (1) a framework for interactive virtual tours of GNN vegetation and fuel maps using gaming technology and tree visualization software; and (2) an interactive web-based query, display, overlay, and analysis tool for GNN maps and underlying inventory data, using map server technology embedded within the virtual environment. The proposed technologies will enable forest and fuel managers and GNN researchers to work collaboratively to improve and understand fuel mapping products through a realistic, immersive visualization. All products (map data integrated within the visualization environment, as well as software) will be documented and made available to users in our study areas and to other interested researchers.

Principal Investigator: Janet L. Ohmann

Agency/Organization: Forest Service

Branch or Dept: PNW-Forestry Sciences Lab-Corvallis

Other Project Collaborators




Branch or Dept

Co-Principal Investigator

Matthew J. Gregory

Oregon State University

Department of Forest Ecosystems & Society

Co-Principal Investigator

Tim Holt

Oregon State University

Department of Forest Ecosystems & Society


Kenneth B. Pierce

Forest Service

PNW-Forestry Sciences Lab-Corvallis

Federal Cooperator

Janet L. Ohmann

Forest Service

PNW-Forestry Sciences Lab-Corvallis

Project Locations

Fire Science Exchange Network



There are no project locations identified for this project.

Project Deliverables

Final Report view or print

("Results presented in JFSP Final Reports may not have been peer-reviewed and should be interpreted as tentative until published in a peer-reviewed source.")

  ID Type Title
view or print   1236 Government Publication GNNViz User Guide
    1640 Computer Model/Software/Algorithm  
    2476 Progress Report  
    2477 Computer Model/Software/Algorithm  
    2478 Conference/Symposia/Workshop Lightweight and Innovative MMP Technologies for Serious Games
    2479 Conference/Symposia/Workshop Serious Games Engine Shootout
    2700 Invited Paper/Presentation Games Get Serious: Computer Games for Visualization and More
    2701 Invited Paper/Presentation Demonstration of the GNNViz Project to the Governing Board of JFSP
    2702 Invited Paper/Presentation Demonstration of Application of Computer Gaming Technology to Forest Visualization
    2703 Invited Paper/Presentation Healthcare and Forestry - Half-Life 2: Meet Serious Games Modding
  go to website 2704 Website  
    2480 Invited Paper/Presentation Games Get Serious: Computer Games for Visualization and More
    2481 Invited Paper/Presentation Demonstration of Application of Computer Gaming Technology to Forest Visualization
    5532 Invited Paper/Presentation Using Game Technology to Present Scientific Data

Supporting Documents

The following supporting documents are available for this project.

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