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Thermokarst Lakes on the Arctic Coastal Plain of Alaska: Spatial and Temporal Variability in Summer Water Temperature

Author

Listed:
  • Kenneth M. Hinkel
  • John D. Lenters
  • Yongwei Sheng
  • Evan A. Lyons
  • Richard A. Beck
  • Wendy R. Eisner
  • Eric F. Maurer
  • Jida Wang
  • Brittany L. Potter

Abstract

In summer 2010, water temperature profile measurements were made in 12 thermokarst lakes along a 150‐km long north–south transect across the Arctic Coastal Plain of northern Alaska. In shallow lakes, gradual warming of the water column to 1–4°C begins at the lake bed during decay of the ice cover in spring. Rapid warming follows ice‐off, with water temperature responding synchronously to synoptic weather variations across the area. Regionally, ice‐off occurs 2–4 weeks later on lakes near the coast. Inland lakes are warmer (13°C) in mid‐summer than those near the coast (7°C), reflecting the regional climate gradient and the maritime effect. All lakes are well mixed and largely isothermal, with some thermal stratification (

Suggested Citation

  • Kenneth M. Hinkel & John D. Lenters & Yongwei Sheng & Evan A. Lyons & Richard A. Beck & Wendy R. Eisner & Eric F. Maurer & Jida Wang & Brittany L. Potter, 2012. "Thermokarst Lakes on the Arctic Coastal Plain of Alaska: Spatial and Temporal Variability in Summer Water Temperature," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 23(3), pages 207-217, July.
    • Handle: RePEc:wly:perpro:v:23:y:2012:i:3:p:207-217
    DOI: 10.1002/ppp.1743
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