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Full-Text Articles in Social and Behavioral Sciences
Geography News, V36n1, Spring 2013, Geographic Alliance Of Iowa.
Geography News, V36n1, Spring 2013, Geographic Alliance Of Iowa.
Geography News
Inside This Issue:
--Coordinator’s Corner
--GAI Updates
--Summer 2013 Workshops
Automated Sinkhole Extraction And Morphological Analysis In Northeast Iowa Using High-Resolution Lidar Data, Jonathon Launspach
Automated Sinkhole Extraction And Morphological Analysis In Northeast Iowa Using High-Resolution Lidar Data, Jonathon Launspach
Dissertations and Theses @ UNI
Accurate and detailed mapping of sinkholes is necessary to ensure sinkhole monitoring and management. Historically, sinkholes were found and digitized manually by a visual examination of aerial photos or through field surveying. This paper develops a new, multicriteria LiDAR-based sinkhole extraction method and automated processes to detect sinkholes and their boundaries. This technique of extraction is unique as it identifies sinkhole boundaries automatically using remotely sensed data, compared to traditional methods of manually tracing the perimeter. A sinkhole detection module was developed within a GIS environment to determine location and boundaries of the sinkholes. Several small study areas were selected …