This is a request for the continuation of the Western Hudson Bay geoscience for infrastructure project (NIRB #16YN040). While keeping Rankin Inlet as one of our main study sites, we would now like to expand our work more south, in the vicinity of Arviat. All proposed methods in this new field area are the same as the methods documented in the existing project (16YN040) and described herein. This will allow us to have a South-North transect of representative and various conditions. Methods would include:1) Shallow drillings (0-3 m) with light portable drilling tools and potentially taking advantage (if any on site) of an Air Track drill (10-20 m) typically used in arctic communities for construction work (pile installation);2) Permafrost coring (0-3 m);3) Instrumentation (ground temperature sensors) in those boreholes;4) Ground-based geophysical surveys (electrical and electromagnetics surveys);5) Drone imagery;6) Site visits to validate remote sensing products. Environmental impact is estimated to be very low, and no long-term environmental impacts are expected. The proposed work will not have any important impact on wildlife or on the major habitats that support the wildlife. No temporary camp will be installed. All work will be conducted based out of Arviat with surveys, samplings and instrumented site locations accessed daily by truck or ATVs and at a walking distance from the ATV/road network. Specific sites would be revised based on field conditions and interest by the community. There will be no operations within Inuit Owned Lands. No helicopter would be used.