Advancement toward coupling of the VAMPER permafrost model within the Earth system model i LOVECLIM (version 1.0): description and validation

The VU Amsterdam Permafrost (VAMPER) permafrost model has been enhanced with snow thickness and active layer calculations in preparation for coupling within the i LOVECLIM Earth system model of intermediate complexity (EMIC). In addition, maps of basal heat flux and lithology were developed within E...

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Published in:Geoscientific Model Development
Main Authors: D. C. Kitover, R. van Balen, D. M. Roche, J. Vandenberghe, H. Renssen
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2015
Subjects:
Online Access:https://doi.org/10.5194/gmd-8-1445-2015
https://doaj.org/article/b4bca7b51c314da399a1d70a61316ffd
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spelling ftdoajarticles:oai:doaj.org/article:b4bca7b51c314da399a1d70a61316ffd 2023-05-15T17:55:25+02:00 Advancement toward coupling of the VAMPER permafrost model within the Earth system model i LOVECLIM (version 1.0): description and validation D. C. Kitover R. van Balen D. M. Roche J. Vandenberghe H. Renssen 2015-05-01T00:00:00Z https://doi.org/10.5194/gmd-8-1445-2015 https://doaj.org/article/b4bca7b51c314da399a1d70a61316ffd EN eng Copernicus Publications http://www.geosci-model-dev.net/8/1445/2015/gmd-8-1445-2015.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 1991-959X 1991-9603 doi:10.5194/gmd-8-1445-2015 https://doaj.org/article/b4bca7b51c314da399a1d70a61316ffd Geoscientific Model Development, Vol 8, Iss 5, Pp 1445-1460 (2015) Geology QE1-996.5 article 2015 ftdoajarticles https://doi.org/10.5194/gmd-8-1445-2015 2022-12-31T06:15:36Z The VU Amsterdam Permafrost (VAMPER) permafrost model has been enhanced with snow thickness and active layer calculations in preparation for coupling within the i LOVECLIM Earth system model of intermediate complexity (EMIC). In addition, maps of basal heat flux and lithology were developed within ECBilt, the atmosphere component of i LOVECLIM, so that VAMPER may use spatially varying parameters of geothermal heat flux and porosity values. The enhanced VAMPER model is validated by comparing the simulated modern-day extent of permafrost thickness with observations. To perform the simulations, the VAMPER model is forced by i LOVECLIM land surface temperatures. Results show that the simulation which did not include the snow cover option overestimated the present permafrost extent. However, when the snow component is included, the simulated permafrost extent is reduced too much. In analyzing simulated permafrost depths, it was found that most of the modeled thickness values and subsurface temperatures fall within a reasonable range of the corresponding observed values. Discrepancies between simulated and observed permafrost depth distribution are due to lack of captured effects from features such as topography and organic soil layers. In addition, some discrepancy is also due to disequilibrium with the current climate, meaning that some observed permafrost is a result of colder states and therefore cannot be reproduced accurately with constant i LOVECLIM preindustrial forcings. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Geoscientific Model Development 8 5 1445 1460
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Geology
QE1-996.5
spellingShingle Geology
QE1-996.5
D. C. Kitover
R. van Balen
D. M. Roche
J. Vandenberghe
H. Renssen
Advancement toward coupling of the VAMPER permafrost model within the Earth system model i LOVECLIM (version 1.0): description and validation
topic_facet Geology
QE1-996.5
description The VU Amsterdam Permafrost (VAMPER) permafrost model has been enhanced with snow thickness and active layer calculations in preparation for coupling within the i LOVECLIM Earth system model of intermediate complexity (EMIC). In addition, maps of basal heat flux and lithology were developed within ECBilt, the atmosphere component of i LOVECLIM, so that VAMPER may use spatially varying parameters of geothermal heat flux and porosity values. The enhanced VAMPER model is validated by comparing the simulated modern-day extent of permafrost thickness with observations. To perform the simulations, the VAMPER model is forced by i LOVECLIM land surface temperatures. Results show that the simulation which did not include the snow cover option overestimated the present permafrost extent. However, when the snow component is included, the simulated permafrost extent is reduced too much. In analyzing simulated permafrost depths, it was found that most of the modeled thickness values and subsurface temperatures fall within a reasonable range of the corresponding observed values. Discrepancies between simulated and observed permafrost depth distribution are due to lack of captured effects from features such as topography and organic soil layers. In addition, some discrepancy is also due to disequilibrium with the current climate, meaning that some observed permafrost is a result of colder states and therefore cannot be reproduced accurately with constant i LOVECLIM preindustrial forcings.
format Article in Journal/Newspaper
author D. C. Kitover
R. van Balen
D. M. Roche
J. Vandenberghe
H. Renssen
author_facet D. C. Kitover
R. van Balen
D. M. Roche
J. Vandenberghe
H. Renssen
author_sort D. C. Kitover
title Advancement toward coupling of the VAMPER permafrost model within the Earth system model i LOVECLIM (version 1.0): description and validation
title_short Advancement toward coupling of the VAMPER permafrost model within the Earth system model i LOVECLIM (version 1.0): description and validation
title_full Advancement toward coupling of the VAMPER permafrost model within the Earth system model i LOVECLIM (version 1.0): description and validation
title_fullStr Advancement toward coupling of the VAMPER permafrost model within the Earth system model i LOVECLIM (version 1.0): description and validation
title_full_unstemmed Advancement toward coupling of the VAMPER permafrost model within the Earth system model i LOVECLIM (version 1.0): description and validation
title_sort advancement toward coupling of the vamper permafrost model within the earth system model i loveclim (version 1.0): description and validation
publisher Copernicus Publications
publishDate 2015
url https://doi.org/10.5194/gmd-8-1445-2015
https://doaj.org/article/b4bca7b51c314da399a1d70a61316ffd
genre permafrost
genre_facet permafrost
op_source Geoscientific Model Development, Vol 8, Iss 5, Pp 1445-1460 (2015)
op_relation http://www.geosci-model-dev.net/8/1445/2015/gmd-8-1445-2015.pdf
https://doaj.org/toc/1991-959X
https://doaj.org/toc/1991-9603
1991-959X
1991-9603
doi:10.5194/gmd-8-1445-2015
https://doaj.org/article/b4bca7b51c314da399a1d70a61316ffd
op_doi https://doi.org/10.5194/gmd-8-1445-2015
container_title Geoscientific Model Development
container_volume 8
container_issue 5
container_start_page 1445
op_container_end_page 1460
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