Potential for extreme loss in high-latitude Earth surface processes due to climate change

  • Aalto J
  • Venäläinen A
  • Heikkinen R
 et al. 
  • 22


    Mendeley users who have this article in their library.
  • 11


    Citations of this article.


Climatically driven Earth surface processes (ESPs) govern landscape and ecosystem dynamics in high-latitude regions. However, climate change is expected to alter ESP activity at yet uncertain rate and amplitude. We examined the sensitivity of key ESPs (cryoturbation, solifluction, nivation, and palsa mires) to changing climate by modeling their distribution in regard to climate, local topography, and soil variables in northern Fennoscandia. The distributions of ESPs were then forecasted under two future time periods, 2040–2069 and 2070–2099, using ensemblemodeling and three emission scenarios. Increase of 2°C in current temperature conditions caused an almost complete loss of ESPs, highlighting the extreme climatic sensitivity of high-latitude geomorphic processes. Forecasts based on three scenarios suggest a disappearance of suitable climate for studied ESPs by the end of this century. This could initiate multiple opposing feedback between land surface and atmosphere through changes in albedo, heat fluxes, and biogeochemical cycles. 1.

Author-supplied keywords

  • Earth surface processes
  • climate change
  • climate scenario
  • ensemble modeling
  • high-latitude environments
  • periglacial geomorphology

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Juha Aalto

  • Ari Venäläinen

  • Risto K. Heikkinen

  • Miska Luoto

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free