Results from the Ice-Sheet Model Intercomparison Project-Heinrich Event INtercOmparison (ISMIP HEINO)

Results from the Heinrich Event INtercOmparison (HEINO) topic of the Ice-Sheet Model Intercomparison Project (ISMIP) are presented. ISMIP HEINO was designed to explore internal largescale ice-sheet instabilities in different contemporary ice-sheet models. These instabilities are of interest because...

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Main Authors: Calov, Reinhard, Greve, Ralf, Abe-Ouchi, Ayako, Bueler, Ed., Huybrechts, Philippe, Johnson, Jesse, Pattyn, Frank, Pollard, David, Ritz, Catherine, Saito, Fuyuki, Tarasov, Lev
Format: Article in Journal/Newspaper
Language:English
Published: 2010
Subjects:
Online Access:http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/187986
https://dipot.ulb.ac.be/dspace/bitstream/2013/187986/3/doi_171613.pdf
id ftunivbruxelles:oai:dipot.ulb.ac.be:2013/187986
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spelling ftunivbruxelles:oai:dipot.ulb.ac.be:2013/187986 2023-05-15T16:35:28+02:00 Results from the Ice-Sheet Model Intercomparison Project-Heinrich Event INtercOmparison (ISMIP HEINO) Calov, Reinhard Greve, Ralf Abe-Ouchi, Ayako Bueler, Ed. Huybrechts, Philippe Johnson, Jesse Pattyn, Frank Pollard, David Ritz, Catherine Saito, Fuyuki Tarasov, Lev 2010-08 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/187986 https://dipot.ulb.ac.be/dspace/bitstream/2013/187986/3/doi_171613.pdf en eng uri/info:doi/10.3189/002214310792447789 uri/info:scp/77956966519 https://dipot.ulb.ac.be/dspace/bitstream/2013/187986/3/doi_171613.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/187986 1 full-text file(s): info:eu-repo/semantics/restrictedAccess Journal of Glaciology, 56 (197 Géologie et minéralogie info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2010 ftunivbruxelles 2022-06-12T22:09:17Z Results from the Heinrich Event INtercOmparison (HEINO) topic of the Ice-Sheet Model Intercomparison Project (ISMIP) are presented. ISMIP HEINO was designed to explore internal largescale ice-sheet instabilities in different contemporary ice-sheet models. These instabilities are of interest because they are a possible cause of Heinrich events. A simplified geometry experiment reproduces the main characteristics of the Laurentide ice sheet, including the sedimented region over Hudson Bay and Hudson Strait. The model experiments include a standard run plus seven variations. Nine dynamic/thermodynamic ice-sheet models were investigated; one of these models contains a combination of the shallow-shelf (SSA) and shallow-ice approximation (SIA), while the remaining eight models are of SIA type only. Seven models, including the SIA-SSA model, exhibit oscillatory surges with a period of ∼1000 years for a broad range of parameters, while two models remain in a permanent state of streaming for most parameter settings. In a number of models, the oscillations disappear for high surface temperatures, strong snowfall and small sediment sliding parameters. In turn, low surface temperatures and low snowfall are favourable for the ice-surge cycles. We conclude that further improvement of ice-sheet models is crucial for adequate, robust simulations of cyclic large-scale instabilities. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Hudson Bay Hudson Strait Ice Sheet Journal of Glaciology DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Hudson Hudson Bay Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000)
institution Open Polar
collection DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
op_collection_id ftunivbruxelles
language English
topic Géologie et minéralogie
spellingShingle Géologie et minéralogie
Calov, Reinhard
Greve, Ralf
Abe-Ouchi, Ayako
Bueler, Ed.
Huybrechts, Philippe
Johnson, Jesse
Pattyn, Frank
Pollard, David
Ritz, Catherine
Saito, Fuyuki
Tarasov, Lev
Results from the Ice-Sheet Model Intercomparison Project-Heinrich Event INtercOmparison (ISMIP HEINO)
topic_facet Géologie et minéralogie
description Results from the Heinrich Event INtercOmparison (HEINO) topic of the Ice-Sheet Model Intercomparison Project (ISMIP) are presented. ISMIP HEINO was designed to explore internal largescale ice-sheet instabilities in different contemporary ice-sheet models. These instabilities are of interest because they are a possible cause of Heinrich events. A simplified geometry experiment reproduces the main characteristics of the Laurentide ice sheet, including the sedimented region over Hudson Bay and Hudson Strait. The model experiments include a standard run plus seven variations. Nine dynamic/thermodynamic ice-sheet models were investigated; one of these models contains a combination of the shallow-shelf (SSA) and shallow-ice approximation (SIA), while the remaining eight models are of SIA type only. Seven models, including the SIA-SSA model, exhibit oscillatory surges with a period of ∼1000 years for a broad range of parameters, while two models remain in a permanent state of streaming for most parameter settings. In a number of models, the oscillations disappear for high surface temperatures, strong snowfall and small sediment sliding parameters. In turn, low surface temperatures and low snowfall are favourable for the ice-surge cycles. We conclude that further improvement of ice-sheet models is crucial for adequate, robust simulations of cyclic large-scale instabilities. SCOPUS: ar.j info:eu-repo/semantics/published
format Article in Journal/Newspaper
author Calov, Reinhard
Greve, Ralf
Abe-Ouchi, Ayako
Bueler, Ed.
Huybrechts, Philippe
Johnson, Jesse
Pattyn, Frank
Pollard, David
Ritz, Catherine
Saito, Fuyuki
Tarasov, Lev
author_facet Calov, Reinhard
Greve, Ralf
Abe-Ouchi, Ayako
Bueler, Ed.
Huybrechts, Philippe
Johnson, Jesse
Pattyn, Frank
Pollard, David
Ritz, Catherine
Saito, Fuyuki
Tarasov, Lev
author_sort Calov, Reinhard
title Results from the Ice-Sheet Model Intercomparison Project-Heinrich Event INtercOmparison (ISMIP HEINO)
title_short Results from the Ice-Sheet Model Intercomparison Project-Heinrich Event INtercOmparison (ISMIP HEINO)
title_full Results from the Ice-Sheet Model Intercomparison Project-Heinrich Event INtercOmparison (ISMIP HEINO)
title_fullStr Results from the Ice-Sheet Model Intercomparison Project-Heinrich Event INtercOmparison (ISMIP HEINO)
title_full_unstemmed Results from the Ice-Sheet Model Intercomparison Project-Heinrich Event INtercOmparison (ISMIP HEINO)
title_sort results from the ice-sheet model intercomparison project-heinrich event intercomparison (ismip heino)
publishDate 2010
url http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/187986
https://dipot.ulb.ac.be/dspace/bitstream/2013/187986/3/doi_171613.pdf
long_lat ENVELOPE(-70.000,-70.000,62.000,62.000)
geographic Hudson
Hudson Bay
Hudson Strait
geographic_facet Hudson
Hudson Bay
Hudson Strait
genre Hudson Bay
Hudson Strait
Ice Sheet
Journal of Glaciology
genre_facet Hudson Bay
Hudson Strait
Ice Sheet
Journal of Glaciology
op_source Journal of Glaciology, 56 (197
op_relation uri/info:doi/10.3189/002214310792447789
uri/info:scp/77956966519
https://dipot.ulb.ac.be/dspace/bitstream/2013/187986/3/doi_171613.pdf
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/187986
op_rights 1 full-text file(s): info:eu-repo/semantics/restrictedAccess
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