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Design and results of the ice sheet model initialisation experiments initMIP-Greenland: an ISMIP6 intercomparison


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タイトル: Design and results of the ice sheet model initialisation experiments initMIP-Greenland: an ISMIP6 intercomparison
著者: Goelzer, Heiko 著作を一覧する
Nowicki, Sophie 著作を一覧する
Edwards, Tamsin 著作を一覧する
Beckley, Matthew 著作を一覧する
Abe-Ouchi, Ayako 著作を一覧する
Aschwanden, Andy 著作を一覧する
Calov, Reinhard 著作を一覧する
Gagliardini, Olivier 著作を一覧する
Gillet-Chaulet, Fabien 著作を一覧する
Golledge, Nicholas R. 著作を一覧する
Gregory, Jonathan 著作を一覧する
Greve, Ralf 著作を一覧する
Humbert, Angelika 著作を一覧する
Huybrechts, Philippe 著作を一覧する
Kennedy, Joseph H. 著作を一覧する
Larour, Eric 著作を一覧する
Lipscomb, William H. 著作を一覧する
Le clec'h, Sébastien 著作を一覧する
Lee, Victoria 著作を一覧する
Morlighem, Mathieu 著作を一覧する
Pattyn, Frank 著作を一覧する
Payne, Antony J. 著作を一覧する
Rodehacke, Christian 著作を一覧する
Rückamp, Martin 著作を一覧する
Saito, Fuyuki 著作を一覧する
Schlegel, Nicole 著作を一覧する
Seroussi, Helene 著作を一覧する
Shepherd, Andrew 著作を一覧する
Sun, Sainan 著作を一覧する
van de Wal, Roderik 著作を一覧する
Ziemen, Florian A. 著作を一覧する
キーワード: Glacier and Ice Sheet Research
発行日: 2018年 4月19日
誌名: The Cryosphere
巻: 12
号: 4
開始ページ: 1433
終了ページ: 1460
出版社 DOI: 10.5194/tc-12-1433-2018
抄録: Earlier large-scale Greenland ice sheet sea-level projections (e.g. those run during the ice2sea and SeaRISE initiatives) have shown that ice sheet initial conditions have a large effect on the projections and give rise to important uncertainties. The goal of this initMIP-Greenland intercomparison exercise is to compare, evaluate, and improve the initialisation techniques used in the ice sheet modelling community and to estimate the associated uncertainties in modelled mass changes. initMIP-Greenland is the first in a series of ice sheet model intercomparison activities within ISMIP6 (the Ice Sheet Model Intercomparison Project for CMIP6), which is the primary activity within the Coupled Model Intercomparison Project Phase 6 (CMIP6) focusing on the ice sheets. Two experiments for the large-scale Greenland ice sheet have been designed to allow intercomparison between participating models of (1) the initial present-day state of the ice sheet and (2) the response in two idealised forward experiments. The forward experiments serve to evaluate the initialisation in terms of model drift (forward run without additional forcing) and in response to a large perturbation (prescribed surface mass balance anomaly); they should not be interpreted as sea-level projections. We present and discuss results that highlight the diversity of data sets, boundary conditions, and initialisation techniques used in the community to generate initial states of the Greenland ice sheet. We find good agreement across the ensemble for the dynamic response to surface mass balance changes in areas where the simulated ice sheets overlap but differences arising from the initial size of the ice sheet. The model drift in the control experiment is reduced for models that participated in earlier intercomparison exercises.
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: Greve Ralf


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