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Geohazard Mapping and Evaluation using Softcopy and LiDAR Technologies

Dennis O'Leary, Robert Harris, Olivier Piraux, Anne Sommerville

In the proceedings of: GeoHazards 6: 6th Canadian Geohazards Conference

Session: Linear Infrastructure

ABSTRACT: Traditional methods of aerial photograph interpretation are limited; however their value is more on regional scale projects. Advances in both photogrammetry and GIS software have created new viewing and analysis tools, including softcopy mapping and Global Mapper, and new datasets including LiDAR and dINSAR. Using a combination of both these tools allow for the better delineation and classification of geohazards, especially on the local and operational scales where subtle landscape features often play a large role in geohazard identification and ultimately management. Numerous examples from a variety of pipeline, rail and mining projects are presented showing the value of using these complimentary technologies and data sets to enhance geohazard identification and mapping.


RÉSUMÉ: Les méthodes traditionnelles de photo-interprétation sont limitées dans leur portée et leur valeur est de plus en plus restreinte aux analyses régionales à petite échelle. Les avancées récentes en photogrammétrie et en développement de systèmes d’informations géographiques apportent de nouvelles perspectives d’applications et de nouveaux outils d’analyses. La photo-interprétation numérique tridimensionnelle, la venue de logiciel tel que Global Mapper ainsi que l’utilisation des données LiDAR and DInSAR sont quelques exemples d’outils qui permettent une meilleure précision et facilitent la classification des géorisques, particulièrement à l’échelle locale où les formes du relief jouent un rôle déterminant dans l’identification des risques naturels. Plusieurs exemples d’application provenant de divers projets d’oléoduc, de chemins de fer et de projets miniers seront présentés afin de démontrer la valeur de l'utilisation de ces technologies complémentaires et des ensembles de données afin d'améliorer l'identification et la cartographie risques géologiques.


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Cite this article:
O'Leary, Dennis, Harris, Robert, Piraux, Olivier, Sommerville, Anne (2014) Geohazard Mapping and Evaluation using Softcopy and LiDAR Technologies in GeoHazards6. Ottawa, Ontario: Canadian Geotechnical Society.

@inproceedings{O'Leary_GeoHazards6_160, author = {{O'Leary, Dennis}, {Harris, Robert}, {Piraux, Olivier}, {Sommerville, Anne}}
title = {Geohazard Mapping and Evaluation using Softcopy and LiDAR Technologies }
booktitle = {Proceedings of the 6th Canadian Geohazards Conference}
year = {2014}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
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