| Title | Delineation of lakes and channels in the Mackenzie Delta, NWT, using airborne LiDAR |
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| Author | Crasto, N; Hopkinson, C; Marsh, P; Forbes, D L ; Spooner, I |
| Source | Proceedings of Remote Sensing and Hydrology; International Association of Hydrological Sciences, Publication 352, 2012 p. 359-362 |
| Links | Online - En ligne
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| Image |  |
| Year | 2012 |
| Alt Series | Earth Sciences Sector, Contribution Series 20120055 |
| Meeting | Remote Sensing and Hydrology Symposium; Jackson Hole, Wyoming; US; September 2010 |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 107B/07 |
| Area | Inuvik; Mackenzie River |
| Lat/Long WENS | -134.0833 -134.0000 68.3333 68.2500 |
| Subjects | Nature and Environment; Hydrology; Remote sensing |
| Program | Climate Change Geoscience |
| Released | 2012 01 01 |
| Abstract | A terrain-based method using locally adaptive thresholds that adjust to slope and orientation of banks was tested to delineate lake and channel banks in the Mackenzie Delta, NWT, Canada. Results will
contribute to an improved understanding of the local hydrology, the development of a hydraulic model and studies on subsidence impacts of planned natural gas extraction projects in the area. In addition to prevalent terrain-based methods that use
point elevations alone, an approach based on using a water mask was tested. Water masks can improve the accuracy of terrain-based bank delineation by: (a) suppressing the effect of low signal-to-noise areas; and (b) prioritizing regions around
existing water bodies that are most likely to contain sill points. |
| GEOSCAN ID | 291424 |
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