Design and results of the ice sheet model initialisation experiments initMIP-Greenland: an ISMIP6 intercomparison
Abstract
Abstract. 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 initialisationmore »
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- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER); National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)
- OSTI Identifier:
- 1459677
- Alternate Identifier(s):
- OSTI ID: 1436954
- Grant/Contract Number:
- Regional and Global Climate Modeling and Earth System Modeling programs; AC05-00OR22725; 610055; 57001; CPER07_13 CIRA; 2016-016066; 17H06104; 16H02224; 7K05664
- Resource Type:
- Published Article
- Journal Name:
- The Cryosphere (Online)
- Additional Journal Information:
- Journal Name: The Cryosphere (Online) Journal Volume: 12 Journal Issue: 4; Journal ID: ISSN 1994-0424
- Publisher:
- Copernicus Publications, EGU
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES
Citation Formats
Goelzer, Heiko, Nowicki, Sophie, Edwards, Tamsin, Beckley, Matthew, Abe-Ouchi, Ayako, Aschwanden, Andy, Calov, Reinhard, Gagliardini, Olivier, Gillet-Chaulet, Fabien, Golledge, Nicholas R., Gregory, Jonathan, Greve, Ralf, Humbert, Angelika, Huybrechts, Philippe, Kennedy, Joseph H., Larour, Eric, Lipscomb, William H., Le clec'h, Sébastien, Lee, Victoria, Morlighem, Mathieu, Pattyn, Frank, Payne, Antony J., Rodehacke, Christian, Rückamp, Martin, Saito, Fuyuki, Schlegel, Nicole, Seroussi, Helene, Shepherd, Andrew, Sun, Sainan, van de Wal, Roderik, and Ziemen, Florian A. Design and results of the ice sheet model initialisation experiments initMIP-Greenland: an ISMIP6 intercomparison. Germany: N. p., 2018.
Web. doi:10.5194/tc-12-1433-2018.
Goelzer, Heiko, Nowicki, Sophie, Edwards, Tamsin, Beckley, Matthew, Abe-Ouchi, Ayako, Aschwanden, Andy, Calov, Reinhard, Gagliardini, Olivier, Gillet-Chaulet, Fabien, Golledge, Nicholas R., Gregory, Jonathan, Greve, Ralf, Humbert, Angelika, Huybrechts, Philippe, Kennedy, Joseph H., Larour, Eric, Lipscomb, William H., Le clec'h, Sébastien, Lee, Victoria, Morlighem, Mathieu, Pattyn, Frank, Payne, Antony J., Rodehacke, Christian, Rückamp, Martin, Saito, Fuyuki, Schlegel, Nicole, Seroussi, Helene, Shepherd, Andrew, Sun, Sainan, van de Wal, Roderik, & Ziemen, Florian A. Design and results of the ice sheet model initialisation experiments initMIP-Greenland: an ISMIP6 intercomparison. Germany. https://doi.org/10.5194/tc-12-1433-2018
Goelzer, Heiko, Nowicki, Sophie, Edwards, Tamsin, Beckley, Matthew, Abe-Ouchi, Ayako, Aschwanden, Andy, Calov, Reinhard, Gagliardini, Olivier, Gillet-Chaulet, Fabien, Golledge, Nicholas R., Gregory, Jonathan, Greve, Ralf, Humbert, Angelika, Huybrechts, Philippe, Kennedy, Joseph H., Larour, Eric, Lipscomb, William H., Le clec'h, Sébastien, Lee, Victoria, Morlighem, Mathieu, Pattyn, Frank, Payne, Antony J., Rodehacke, Christian, Rückamp, Martin, Saito, Fuyuki, Schlegel, Nicole, Seroussi, Helene, Shepherd, Andrew, Sun, Sainan, van de Wal, Roderik, and Ziemen, Florian A. Thu .
"Design and results of the ice sheet model initialisation experiments initMIP-Greenland: an ISMIP6 intercomparison". Germany. https://doi.org/10.5194/tc-12-1433-2018.
@article{osti_1459677,
title = {Design and results of the ice sheet model initialisation experiments initMIP-Greenland: an ISMIP6 intercomparison},
author = {Goelzer, Heiko and Nowicki, Sophie and Edwards, Tamsin and Beckley, Matthew and Abe-Ouchi, Ayako and Aschwanden, Andy and Calov, Reinhard and Gagliardini, Olivier and Gillet-Chaulet, Fabien and Golledge, Nicholas R. and Gregory, Jonathan and Greve, Ralf and Humbert, Angelika and Huybrechts, Philippe and Kennedy, Joseph H. and Larour, Eric and Lipscomb, William H. and Le clec'h, Sébastien and Lee, Victoria and Morlighem, Mathieu and Pattyn, Frank and Payne, Antony J. and Rodehacke, Christian and Rückamp, Martin and Saito, Fuyuki and Schlegel, Nicole and Seroussi, Helene and Shepherd, Andrew and Sun, Sainan and van de Wal, Roderik and Ziemen, Florian A.},
abstractNote = {Abstract. 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.},
doi = {10.5194/tc-12-1433-2018},
journal = {The Cryosphere (Online)},
number = 4,
volume = 12,
place = {Germany},
year = {Thu Apr 19 00:00:00 EDT 2018},
month = {Thu Apr 19 00:00:00 EDT 2018}
}
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- Lucas-Picher, Philippe; Wulff-Nielsen, Maria; Christensen, Jens H.
- Journal of Geophysical Research: Atmospheres, Vol. 117, Issue D2
Coupling of climate models and ice sheet models by surface mass balance gradients: application to the Greenland Ice Sheet
journal, January 2012
- Helsen, M. M.; van de Wal, R. S. W.; van den Broeke, M. R.
- The Cryosphere, Vol. 6, Issue 2
High variability of Greenland surface temperature over the past 4000 years estimated from trapped air in an ice core: PAST 4000 YEARS OF GREENLAND TEMPERATURE
journal, November 2011
- Kobashi, Takuro; Kawamura, Kenji; Severinghaus, Jeffrey P.
- Geophysical Research Letters, Vol. 38, Issue 21