Canadian Coastal Information System (CIS) - Change Mapping, Beaufort Sea Coast 1984, 1999 and 2000
Shore-zone classification data for the Canadian Beaufort Sea coast form part of a GIS database, the Coastal Information System (CIS), developed and maintained by the Geological Survey of Canada (GSC-Atlantic), Natural Resources Canada, at the Bedford Institute of Oceanography in Dartmouth, NS. Coast...
| Main Authors: | , , |
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| Format: | Dataset |
| Language: | English |
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Canadian Cryospheric Information Network
2015
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5443/12125 https://www.polardata.ca/pdcsearch/?doi_id=12125 |
| Summary: | Shore-zone classification data for the Canadian Beaufort Sea coast form part of a GIS database, the Coastal Information System (CIS), developed and maintained by the Geological Survey of Canada (GSC-Atlantic), Natural Resources Canada, at the Bedford Institute of Oceanography in Dartmouth, NS. Coastal attributes in the CIS have been interpreted and mapped from low-level, oblique, aerial photography and video imagery with accompanying audio commentary. The CIS is hierarchical in that coastal forms are classified based on four increasingly detailed levels of description. The coastal data consist of line segments with attributes describing the physical form and material at scales ranging from 1:10 000 to 1:250 000. In the CIS, the coast is divided into three shore-parallel zones (backshore, foreshore, nearshore). Each zone is segmented separately based on homogeneous physical characteristics. A glossary has been developed to control the language used to describe each zone. The use of objective physical criteria for coastal classification enhances the utility of the CIS for a wide variety of applications. Qualitative coastal change was mapped along select portions of the coast based on the availability of overlapping, multi-year coastal video and aerial photography. Change mapping comments are based on the direction of change (erosion, aggradation, and re-orientation), the extent of change (moderate, extensive, not discernable), or changes in specific features or materials (spit formation, mud flows, retrogressive thaw failures, accumulation of driftwood). Coastal changes over the intervals of 1984 to 1999, and 1999 to 2000 were mapped based on repeat, oblique aerial video coverage. Along a small section of coastline, longer term changes were estimated based on a comparison between 1958 aerial photography and 1999 oblique aerial video. For more information please refer to the datafile entitled: CCIN12125_20150218_Change_Mapping_Extended_Metadata_FGDC.xml : Purpose: These data have been applied to shore-zone description and classification for assessment of coastal stability and hazards. Additional applications may include coastal management and planning, oil-spill sensitivity mapping, physical access mapping, or qualitative coastal change analysis, among others. : Summary: Not Applicable |
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