Measurements of thaw front depth, surface organic layer thickness, soil moisture content and water table depth in Old Crow Flats, Yukon, Canada

Between June 2017 and September 2022, fieldwork was conducted in Old Crow Flats, Yukon (Canada) to study thermokarst lake and drained basin dynamics and hydrological connections in the flats. As part of this work, measurements of thaw front depth, thickness of the surface organic layer, soil water content and water table depth were made at 17 sites. Thaw front depths were made by probing soils to refusal with a rod. The thickness of the organic layer was measured by digging holes until the mineral layer was visible, and the depth to the water table was noted in that same hole. Water content was recorded with the HydroSense II Handheld Soil Moisture Sensor.