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Geoscience

High-Resolution Mapping of Glacial Landscapes in Central Mainland Nunavut Using ArcticDEM Data and Landsat 8 Imagery

Presenter:

 

Isabelle McMartin – isabelle.mcmartin@canada.ca

 

Authors:

 
I. McMartin – Geological Survey of Canada, Ottawa, ON, Canada
J.E. Campbell – Geological Survey of Canada, Ottawa, ON, Canada
T. Tremblay – Canada-Nunavut Geoscience Office, Iqaluit, NU, Canada
P. Behnia – Geological Survey of Canada, Ottawa, ON, Canada
P.-M. Godbout – Geological Survey of Canada, Ottawa, ON, Canada
 

Summary:

A new glacial geomorphology map covers 415 000 km2 in a core region of the Laurentide Ice Sheet in Nunavut. The compilation builds on recent and legacy maps and is supplemented by visual digitization of glacigenic features using high-resolution digital elevation (ArcticDEM) and Landsat 8 images. From this unprecedented, detailed inventory of >152 000 features and >14 000 field observations, various glacial land systems were identified, many of which are entirely new and others that are significantly modified or updated.

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