You're currently viewing an old version of this dataset. To see the current version, click here.
Regional-scale ground-ice modelling for the Slave geological province
Data and Resources
Additional Info
| Field | Value |
|---|---|
| Creator | O'Neill, H. B., Wolfe, S. A., Duchesne, C. and Parker, R. J. H. |
| Summary | Ground ice information is critical for infrastructure development planning and management in areas with permafrost. The Slave geological province is a mineral rich region spanning the Northwest Territories (NT) and Nunavut (NU). A proposed transportation system would connect NU to the national highway and rail system in NT, and to a deep-water port on the Arctic Ocean. Ground ice conditions have been characterized in some geomorphic settings, but overall, there is limited knowledge on ground ice abundance and distribution along the proposed route. This report provides geospatial files of modelled ground ice abundance across a broad portion of the Slave Geological Province encompassing the proposed infrastructure corridor, presented in O’Neill et al. (2024). The modelling is based on the routines used to produce the Ground ice map of Canada (GIMC), modified to incorporate more detailed, 1:125 000 scale surficial geology mapping. This report provides a brief description of the modelling routines and the spatial data layers for three modelled ground ice types (relict, segregated, and wedge), and for the combined abundance. Furthermore, a tool to generalize and summarize raster ground ice model outputs for use in broader-scale applications is described and demonstrated using the Slave Geological Province model outputs as an example. The tool allows specification of an output pixel size, and for each output pixel compiles the number of underlying smaller pixels in each abundance class and stores summary values in the output attribute table. This allows a scaling relation between modelling based on 1:125 000 scale surficial geology and lower resolution mapping that accounts for sub-grid spatial heterogeneity. Show less |
| Local Relevance | The Slave geological province is a mineral rich region spanning the Northwest Territories (NT) and Nunavut (NU). A proposed transportation system would connect NU to the national highway and rail system in NT, and to a deep-water port on the Arctic Ocean. |
| Notes | |
| Tags | Ground Ice |
| Geographic Region | NWT |
| Release Date | 2024-07-30 |
| Last Modified Date | 2024-07-30 |
| Funding Program |