Distributions of degraded and intact lithalsas, North Slave region, Northwest Territories
Data and Resources
Additional Info
| Field | Value |
|---|---|
| Creator | P.D. Morse and A.C.A Rudy |
| Summary | The main objective of this report is to provide an inventory of current (intact or degrading) and old (completely degraded) lithalsas in a representative study area of the southern North Slave region between Behchoko and Yellowknife in the Northwest Territories. A lithalsa is an ice-rich mound of permafrost that causes the soil to settle downward and water to pond if the ice core thaws (thermokarst pond). Lithalsas, widespread in this region, are therefore very sensitive to thawing. This inventory should help to better understand current and future permafrost conditions, and is based directly on the GSC's Open File 7255, which provides an inventory of many lithalsas in the region, as well as on the GSC's Open File 8205, which provides an inventory of thermokarst pond development between 1945 and 2005 in the same study area. |
| Local Relevance | This report documents lithalsas in the NWT, which are permafrost features sensitive to thawing. Therefore, this inventory provides a measure of permafrost thaw in the NWT. |
| Notes | |
| Tags | Permafrost,Lithalsa,Remote Sensing,Inventory |
| Geographic Region | North Slave |
| Release Date | 2022-02-22 |
| Last Modified Date | 2022-02-22 |
| Funding Program |