Articles | Volume 12, issue 1
https://doi.org/10.5194/tc-12-145-2018
https://doi.org/10.5194/tc-12-145-2018
Research article
 | 
16 Jan 2018
Research article |  | 16 Jan 2018

Characterizing permafrost active layer dynamics and sensitivity to landscape spatial heterogeneity in Alaska

Yonghong Yi, John S. Kimball, Richard H. Chen, Mahta Moghaddam, Rolf H. Reichle, Umakant Mishra, Donatella Zona, and Walter C. Oechel

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Latest update: 21 May 2024
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Short summary
An important feature of the Arctic is large spatial heterogeneity in active layer conditions. We developed a modeling framework integrating airborne longwave radar and satellite data to investigate active layer thickness (ALT) sensitivity to landscape heterogeneity in Alaska. We find uncertainty in spatial and vertical distribution of soil organic carbon is the largest factor affecting ALT accuracy. Advances in remote sensing of soil conditions will enable more accurate ALT predictions.