Sensitivity of a Greenland ice sheet model to atmospheric forcing fields
Predicting the climate for the future and how it will impact ice sheet evolution requires coupling ice sheet models with climate models. However, before we attempt to develop a realistic coupled setup, we propose, in this study, to first analyse the impact of a model simulated climate on an ice shee...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2012
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-6-999-2012 http://www.the-cryosphere.net/6/999/2012/tc-6-999-2012.pdf https://doaj.org/article/df165291651a4a1bacd33531cfff58d3 |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:df165291651a4a1bacd33531cfff58d3 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:df165291651a4a1bacd33531cfff58d3 2023-05-15T16:27:11+02:00 Sensitivity of a Greenland ice sheet model to atmospheric forcing fields A. Quiquet H. J. Punge C. Ritz X. Fettweis H. Gallée M. Kageyama G. Krinner D. Salas y Mélia J. Sjolte 2012-09-01 https://doi.org/10.5194/tc-6-999-2012 http://www.the-cryosphere.net/6/999/2012/tc-6-999-2012.pdf https://doaj.org/article/df165291651a4a1bacd33531cfff58d3 en eng Copernicus Publications doi:10.5194/tc-6-999-2012 1994-0416 1994-0424 http://www.the-cryosphere.net/6/999/2012/tc-6-999-2012.pdf https://doaj.org/article/df165291651a4a1bacd33531cfff58d3 undefined The Cryosphere, Vol 6, Iss 5, Pp 999-1018 (2012) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.5194/tc-6-999-2012 2023-01-22T17:53:22Z Predicting the climate for the future and how it will impact ice sheet evolution requires coupling ice sheet models with climate models. However, before we attempt to develop a realistic coupled setup, we propose, in this study, to first analyse the impact of a model simulated climate on an ice sheet. We undertake this exercise for a set of regional and global climate models. Modelled near surface air temperature and precipitation are provided as upper boundary conditions to the GRISLI (GRenoble Ice Shelf and Land Ice model) hybrid ice sheet model (ISM) in its Greenland configuration. After 20 kyrs of simulation, the resulting ice sheets highlight the differences between the climate models. While modelled ice sheet sizes are generally comparable to the observed one, there are considerable deviations among the ice sheets on regional scales. These deviations can be explained by biases in temperature and precipitation near the coast. This is especially true in the case of global models. But the deviations between the climate models are also due to the differences in the atmospheric general circulation. To account for these differences in the context of coupling ice sheet models with climate models, we conclude that appropriate downscaling methods will be needed. In some cases, systematic corrections of the climatic variables at the interface may be required to obtain realistic results for the Greenland ice sheet (GIS). Article in Journal/Newspaper Greenland Ice Sheet Ice Shelf The Cryosphere Unknown Greenland The Cryosphere 6 5 999 1018 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir A. Quiquet H. J. Punge C. Ritz X. Fettweis H. Gallée M. Kageyama G. Krinner D. Salas y Mélia J. Sjolte Sensitivity of a Greenland ice sheet model to atmospheric forcing fields |
topic_facet |
geo envir |
description |
Predicting the climate for the future and how it will impact ice sheet evolution requires coupling ice sheet models with climate models. However, before we attempt to develop a realistic coupled setup, we propose, in this study, to first analyse the impact of a model simulated climate on an ice sheet. We undertake this exercise for a set of regional and global climate models. Modelled near surface air temperature and precipitation are provided as upper boundary conditions to the GRISLI (GRenoble Ice Shelf and Land Ice model) hybrid ice sheet model (ISM) in its Greenland configuration. After 20 kyrs of simulation, the resulting ice sheets highlight the differences between the climate models. While modelled ice sheet sizes are generally comparable to the observed one, there are considerable deviations among the ice sheets on regional scales. These deviations can be explained by biases in temperature and precipitation near the coast. This is especially true in the case of global models. But the deviations between the climate models are also due to the differences in the atmospheric general circulation. To account for these differences in the context of coupling ice sheet models with climate models, we conclude that appropriate downscaling methods will be needed. In some cases, systematic corrections of the climatic variables at the interface may be required to obtain realistic results for the Greenland ice sheet (GIS). |
format |
Article in Journal/Newspaper |
author |
A. Quiquet H. J. Punge C. Ritz X. Fettweis H. Gallée M. Kageyama G. Krinner D. Salas y Mélia J. Sjolte |
author_facet |
A. Quiquet H. J. Punge C. Ritz X. Fettweis H. Gallée M. Kageyama G. Krinner D. Salas y Mélia J. Sjolte |
author_sort |
A. Quiquet |
title |
Sensitivity of a Greenland ice sheet model to atmospheric forcing fields |
title_short |
Sensitivity of a Greenland ice sheet model to atmospheric forcing fields |
title_full |
Sensitivity of a Greenland ice sheet model to atmospheric forcing fields |
title_fullStr |
Sensitivity of a Greenland ice sheet model to atmospheric forcing fields |
title_full_unstemmed |
Sensitivity of a Greenland ice sheet model to atmospheric forcing fields |
title_sort |
sensitivity of a greenland ice sheet model to atmospheric forcing fields |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/tc-6-999-2012 http://www.the-cryosphere.net/6/999/2012/tc-6-999-2012.pdf https://doaj.org/article/df165291651a4a1bacd33531cfff58d3 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet Ice Shelf The Cryosphere |
genre_facet |
Greenland Ice Sheet Ice Shelf The Cryosphere |
op_source |
The Cryosphere, Vol 6, Iss 5, Pp 999-1018 (2012) |
op_relation |
doi:10.5194/tc-6-999-2012 1994-0416 1994-0424 http://www.the-cryosphere.net/6/999/2012/tc-6-999-2012.pdf https://doaj.org/article/df165291651a4a1bacd33531cfff58d3 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-6-999-2012 |
container_title |
The Cryosphere |
container_volume |
6 |
container_issue |
5 |
container_start_page |
999 |
op_container_end_page |
1018 |
_version_ |
1766016267451367424 |