CGRG Bibliography of Canadian Geomorphology
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Author : Demchuk, T.E.; Ferbey, T.; Kerr, B.J.; and Levson, V.M.
Date : 2005.
Title : Surficial geology and aggregate potential mapping in northeast British Columbia using LiDAR imagery.
Publication : Summary of Activities 2005, BC Ministry of Energy and Mines.
Issue :
Page(s) : 51-59.
Abstract
Light detection and ranging (LiDAR) digital elevation models (DEMs) have proven to be an effective tool for mapping surficial features and aggregate potential in northeast British Columbia (BC). Northeast BC is characterized by low relief, and by subtle glacial landforms commonly masked by forest cover. For these reasons aerial photograph interpretation on its own is a somewhat ineffective aggregate exploration technique. The BC Ministry of Energy and Mines, in partnership with EnCana Corporation, is using LiDAR data with 10 m and 2 m horizontal resolution and vertical accuracies of up to 30 cm to map aggregate potential for portions of NTS map areas 94 I and P.To date, these data have helped in the identification and interpretation of glacial features and are responsible for numerous recent aggregate exploration successes in areas where there is a demand for construction aggregates. Some of these features are visible in lower resolution data sets such as airphotos and RADARSAT DEMs, while others are visible only in LiDAR DEMs. The latter is particularly true for low-relief features (i.e. 1 to 3 m high), which can be masked by vegetation in aerial photographs, and are often not resolved in RADARSAT DEMs. LiDAR DEM shave also proven to be a useful tool for detailed aggregate potential assessments of glaciofluvial features that are identifiable, but poorly defined, in other datasets. *download pdf at: www.em.gov.bc.ca/subwebs/oilandgas/pub/reports/summary2005.htm .
Bibliography of Canadian Geomorphology