Abstract
Three-dimensional canopy relectance models provide a physical-structural basis to satellite image analysis, representing a potentially more robust, objective and accurate approach for obtaining forest cover type and structural information with minimal ground truth data. The Geometric Optical Mutual Shadowing (GOMS) canopy relectance model was run in multiple-forward-mode (MFM) using digital multispectral IKONOS satellite imagery to estimate tree height and stand volume over 100m2 homogeneous forest plots in mountainous terrain, Kananaskis, Alberta. Height was computed within 2.7m for trembling aspen and 1.8m fr lodgepole pine, with basal area estimated within 0.05m2. Stand volume, estimated as the product of mean tree height and basal area, had an absolute mean difference from field measurements of 0.85m3/100m2 and 0.61m3/100m2 for aspen and pine, respectively.
Author and committee
dc:creator, dc:contributor.*- Authors
-
- Pilger, Neal
- University of Lethbridge. Faculty of Arts and Science
Subjects
dc:subject × 4Identifiers
dc:identifier.*- Identifier
- hdl:10133/230
- OAI identifier oai:identifier
- oai:opus.uleth.ca:10133/230