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

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 Maxi...

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Bibliographic Details
Published in:Journal of Quaternary Science
Main Authors: Kitover, Danielle C., Renssen, Hans, van Balen, Ronald, Vandenberghe, Jef, Roche, Didier M.
Format: Article in Journal/Newspaper
Language:English
Published: 2019
Subjects:
climate modeling
deglaciation
LGM
paleoclimate
permafrost
Online Access:https://research.vu.nl/en/publications/ca208d1c-8be5-4109-a882-9568aa0eaa16
https://doi.org/10.1002/jqs.3094
https://hdl.handle.net/1871.1/ca208d1c-8be5-4109-a882-9568aa0eaa16
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Description
Summary: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.

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