This GIS dataset depicts the surficial geology of the Dizzy Creek Area (NTS 84N/SE) (discontinuous permafrost features). The data were created in geodatabase format and output for public distribution in shapefile format.
These data comprise the permafrost polygon features of Alberta Geological Survey Map 540, Surficial Geology of the Dizzy Creek Area (NTS 84N/SE).
Process includes
1. airphoto interpretation
2. scanned each 1:60 000 airphoto in full colour at 300 dpi JPEG
3. georeferenced and edgematched images using 1:20 000 scale provincial digital base data (i.e., hydrography and roads) for control
4. digitized line features from each image individually, reconciled edge discrepancies
5. labelled spatial features
6. quality check, proofreading