GEOSCAN Search Results: Fastlink


TitleDelineation of lakes and channels in the Mackenzie Delta, NWT, using airborne LiDAR
AuthorCrasto, N; Hopkinson, C; Marsh, P; Forbes, D LORCID logo; Spooner, I
SourceProceedings of Remote Sensing and Hydrology; International Association of Hydrological Sciences, Publication 352, 2012 p. 359-362
LinksOnline - En ligne
Alt SeriesEarth Sciences Sector, Contribution Series 20120055
MeetingRemote Sensing and Hydrology Symposium; Jackson Hole, Wyoming; US; September 2010
Mediapaper; on-line; digital
File formatpdf
ProvinceNorthwest Territories
AreaInuvik; Mackenzie River
Lat/Long WENS-134.0833 -134.0000 68.3333 68.2500
SubjectsNature and Environment; Hydrology; Remote sensing
ProgramClimate Change Geoscience
Released2012 01 01
AbstractA 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.

Date modified: