Coupling of VAMPERS within iLOVECLIM: experiments during the LGM and Last Deglaciation

Danielle C. Kitover, Hans Renssen*, Ronald van Balen, Jef Vandenberghe, Didier M. Roche

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The VAMPERS (Vrije Universiteit Amsterdam Permafrost Snow Model) has been coupled within iLOVECLIM, an earth system model. This advancement allows the thermal coupling between permafrost and climate to be examined from a millennial timescale using equilibrium experiments during the Last Glacial Maximum (21 ka) and transient experiments for the subsequent deglaciation period (21–11 ka). It appears that the role of permafrost during both stable and transitional (glacial–interglacial) climate periods is seasonal, resulting in cooler summers and warmer winters by approximately ±2 °C maximum. This conclusion reinforces the importance of including the active layer within climate models. In addition, the coupling of VAMPERS also yields a simulation of transient permafrost conditions, not only for estimating areal changes in extent but also total permafrost gain/loss.

Original languageEnglish
Pages (from-to)1-13
Number of pages13
JournalJournal of Quaternary Science
Volume34
Issue number3
DOIs
Publication statusE-pub ahead of print - 13 Mar 2019

Keywords

  • climate modeling
  • deglaciation
  • LGM
  • paleoclimate
  • permafrost

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