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Fine‐scale environment control on ground surface temperature and thaw depth in a High Arctic tundra landscape

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  • Hadi Mohammadzadeh Khani
  • Christophe Kinnard
  • Simon Gascoin
  • Esther Lévesque

Abstract

Surface conditions are known to mediate the impacts of climate warming on permafrost. This calls for a better understanding of the environmental conditions that control the thermal regime and the depth of the active layer, especially within heterogeneous tundra landscapes. This study analyzed the spatial relationships between thaw depths, ground surface temperature (GST), and environmental conditions in a High Arctic tundra environment at Bylot Island, Nunavut, Canada. Measurements were distributed within the two dominant landforms, namely earth hummocks and low‐center polygons, and across a topographic gradient. Our results revealed that GST and thaw depth were highly heterogeneous, varying by up to 3.7°C and by more than 20 cm over short distances (

Suggested Citation

  • Hadi Mohammadzadeh Khani & Christophe Kinnard & Simon Gascoin & Esther Lévesque, 2023. "Fine‐scale environment control on ground surface temperature and thaw depth in a High Arctic tundra landscape," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 34(4), pages 467-480, October.
    • Handle: RePEc:wly:perpro:v:34:y:2023:i:4:p:467-480
    DOI: 10.1002/ppp.2203
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