SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet
The present paper revisits the future surface-climate experiments on the Greenland ice sheet proposed by the Sea-level Response to Ice Sheet Evolution (SeaRISE; Bindschadler et al., 2013) study. The projections of the different SeaRISE participants show dispersion, which has not been examined in det...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2016
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-10-43-2016 https://doaj.org/article/36157e834e2642569dca42c82c3ac925 |
id |
ftdoajarticles:oai:doaj.org/article:36157e834e2642569dca42c82c3ac925 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:36157e834e2642569dca42c82c3ac925 2023-05-15T16:28:08+02:00 SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet F. Saito A. Abe-Ouchi K. Takahashi H. Blatter 2016-01-01T00:00:00Z https://doi.org/10.5194/tc-10-43-2016 https://doaj.org/article/36157e834e2642569dca42c82c3ac925 EN eng Copernicus Publications http://www.the-cryosphere.net/10/43/2016/tc-10-43-2016.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-10-43-2016 https://doaj.org/article/36157e834e2642569dca42c82c3ac925 The Cryosphere, Vol 10, Iss 1, Pp 43-63 (2016) Environmental sciences GE1-350 Geology QE1-996.5 article 2016 ftdoajarticles https://doi.org/10.5194/tc-10-43-2016 2022-12-31T12:33:29Z The present paper revisits the future surface-climate experiments on the Greenland ice sheet proposed by the Sea-level Response to Ice Sheet Evolution (SeaRISE; Bindschadler et al., 2013) study. The projections of the different SeaRISE participants show dispersion, which has not been examined in detail to date. A series of sensitivity experiments are conducted and analyzed using the ice-sheet model for integrated Earth-system studies (IcIES) by replacing one or more formulations of the model parameters with those adopted in other model(s). The results show that large potential sources of the dispersion among the projections of the different SeaRISE participants are differences in the initialization methods and in the surface mass balance methods, and both aspects have almost equal impact on the results. The treatment of ice-sheet margins in the simulation has a secondary impact on the dispersion. We conclude that spinning up the model using fixed topography through the spin-up period while the temperature is allowed to evolve according to the surface temperature history is the preferred representation, at least for the experiment configuration examined in the present paper. A benchmark model experimental setup that most of the numerical models can perform is proposed for future intercomparison projects, in order to evaluate the uncertainties relating to pure ice-sheet model flow characteristics. Article in Journal/Newspaper Greenland Ice Sheet The Cryosphere Directory of Open Access Journals: DOAJ Articles Greenland The Cryosphere 10 1 43 63 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 F. Saito A. Abe-Ouchi K. Takahashi H. Blatter SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
The present paper revisits the future surface-climate experiments on the Greenland ice sheet proposed by the Sea-level Response to Ice Sheet Evolution (SeaRISE; Bindschadler et al., 2013) study. The projections of the different SeaRISE participants show dispersion, which has not been examined in detail to date. A series of sensitivity experiments are conducted and analyzed using the ice-sheet model for integrated Earth-system studies (IcIES) by replacing one or more formulations of the model parameters with those adopted in other model(s). The results show that large potential sources of the dispersion among the projections of the different SeaRISE participants are differences in the initialization methods and in the surface mass balance methods, and both aspects have almost equal impact on the results. The treatment of ice-sheet margins in the simulation has a secondary impact on the dispersion. We conclude that spinning up the model using fixed topography through the spin-up period while the temperature is allowed to evolve according to the surface temperature history is the preferred representation, at least for the experiment configuration examined in the present paper. A benchmark model experimental setup that most of the numerical models can perform is proposed for future intercomparison projects, in order to evaluate the uncertainties relating to pure ice-sheet model flow characteristics. |
format |
Article in Journal/Newspaper |
author |
F. Saito A. Abe-Ouchi K. Takahashi H. Blatter |
author_facet |
F. Saito A. Abe-Ouchi K. Takahashi H. Blatter |
author_sort |
F. Saito |
title |
SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet |
title_short |
SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet |
title_full |
SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet |
title_fullStr |
SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet |
title_full_unstemmed |
SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet |
title_sort |
searise experiments revisited: potential sources of spread in multi-model projections of the greenland ice sheet |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/tc-10-43-2016 https://doaj.org/article/36157e834e2642569dca42c82c3ac925 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet The Cryosphere |
genre_facet |
Greenland Ice Sheet The Cryosphere |
op_source |
The Cryosphere, Vol 10, Iss 1, Pp 43-63 (2016) |
op_relation |
http://www.the-cryosphere.net/10/43/2016/tc-10-43-2016.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-10-43-2016 https://doaj.org/article/36157e834e2642569dca42c82c3ac925 |
op_doi |
https://doi.org/10.5194/tc-10-43-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
1 |
container_start_page |
43 |
op_container_end_page |
63 |
_version_ |
1766017761580941312 |