Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution
This paper presents the major characteristics of the Institut Pierre Simon Laplace (IPSL) coupled ocean–atmosphere general circulation model. The model components and the coupling methodology are described, as well as the main characteristics of the climatology and interannual variability. The model...
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ftunivreading:oai:centaur.reading.ac.uk:5878 2024-06-23T07:54:56+00:00 Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution Marti, Olivier Braconnot, P. Dufresne, J.-L. Bellier, J. Benshila, R. Bony, S. Brockmann, P. Cadule, P. Caubel, A. Codron, F. Noblet, N. Denvil, S. Fairhead, L. Fichefet, T. Foujols, M.-A. Friedlingstein, P. Goosse, H. Grandpeix, J.-Y. Guilyardi, E. Hourdin, F. Idelkadi, A. Kageyama, M. Krinner, G. Lévy, C. Madec, G. Mignot, J. Musat, I. Swingedouw, D. Talandier, C. 2009-01 https://centaur.reading.ac.uk/5878/ https://doi.org/10.1007/s00382-009-0640-6 unknown Springer Marti, O., Braconnot, P., Dufresne, J.-L., Bellier, J., Benshila, R., Bony, S., Brockmann, P., Cadule, P., Caubel, A., Codron, F., Noblet, N., Denvil, S., Fairhead, L., Fichefet, T., Foujols, M.-A., Friedlingstein, P., Goosse, H., Grandpeix, J.-Y., Guilyardi, E. <https://centaur.reading.ac.uk/view/creators/90000869.html>, Hourdin, F., Idelkadi, A., Kageyama, M., Krinner, G., Lévy, C., Madec, G., Mignot, J., Musat, I., Swingedouw, D. and Talandier, C. (2009) Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution. Climate Dynamics, 34 (1). pp. 1-26. ISSN 0930-7575 doi: https://doi.org/10.1007/s00382-009-0640-6 <https://doi.org/10.1007/s00382-009-0640-6> Article PeerReviewed 2009 ftunivreading https://doi.org/10.1007/s00382-009-0640-6 2024-06-11T14:45:14Z This paper presents the major characteristics of the Institut Pierre Simon Laplace (IPSL) coupled ocean–atmosphere general circulation model. The model components and the coupling methodology are described, as well as the main characteristics of the climatology and interannual variability. The model results of the standard version used for IPCC climate projections, and for intercomparison projects like the Paleoclimate Modeling Intercomparison Project (PMIP 2) are compared to those with a higher resolution in the atmosphere. A focus on the North Atlantic and on the tropics is used to address the impact of the atmosphere resolution on processes and feedbacks. In the North Atlantic, the resolution change leads to an improved representation of the storm-tracks and the North Atlantic oscillation. The better representation of the wind structure increases the northward salt transports, the deep-water formation and the Atlantic meridional overturning circulation. In the tropics, the ocean–atmosphere dynamical coupling, or Bjerknes feedback, improves with the resolution. The amplitude of ENSO (El Niño-Southern oscillation) consequently increases, as the damping processes are left unchanged. Article in Journal/Newspaper North Atlantic North Atlantic oscillation CentAUR: Central Archive at the University of Reading Laplace ENVELOPE(141.467,141.467,-66.782,-66.782) Climate Dynamics 34 1 1 26 |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
op_collection_id |
ftunivreading |
language |
unknown |
description |
This paper presents the major characteristics of the Institut Pierre Simon Laplace (IPSL) coupled ocean–atmosphere general circulation model. The model components and the coupling methodology are described, as well as the main characteristics of the climatology and interannual variability. The model results of the standard version used for IPCC climate projections, and for intercomparison projects like the Paleoclimate Modeling Intercomparison Project (PMIP 2) are compared to those with a higher resolution in the atmosphere. A focus on the North Atlantic and on the tropics is used to address the impact of the atmosphere resolution on processes and feedbacks. In the North Atlantic, the resolution change leads to an improved representation of the storm-tracks and the North Atlantic oscillation. The better representation of the wind structure increases the northward salt transports, the deep-water formation and the Atlantic meridional overturning circulation. In the tropics, the ocean–atmosphere dynamical coupling, or Bjerknes feedback, improves with the resolution. The amplitude of ENSO (El Niño-Southern oscillation) consequently increases, as the damping processes are left unchanged. |
format |
Article in Journal/Newspaper |
author |
Marti, Olivier Braconnot, P. Dufresne, J.-L. Bellier, J. Benshila, R. Bony, S. Brockmann, P. Cadule, P. Caubel, A. Codron, F. Noblet, N. Denvil, S. Fairhead, L. Fichefet, T. Foujols, M.-A. Friedlingstein, P. Goosse, H. Grandpeix, J.-Y. Guilyardi, E. Hourdin, F. Idelkadi, A. Kageyama, M. Krinner, G. Lévy, C. Madec, G. Mignot, J. Musat, I. Swingedouw, D. Talandier, C. |
spellingShingle |
Marti, Olivier Braconnot, P. Dufresne, J.-L. Bellier, J. Benshila, R. Bony, S. Brockmann, P. Cadule, P. Caubel, A. Codron, F. Noblet, N. Denvil, S. Fairhead, L. Fichefet, T. Foujols, M.-A. Friedlingstein, P. Goosse, H. Grandpeix, J.-Y. Guilyardi, E. Hourdin, F. Idelkadi, A. Kageyama, M. Krinner, G. Lévy, C. Madec, G. Mignot, J. Musat, I. Swingedouw, D. Talandier, C. Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution |
author_facet |
Marti, Olivier Braconnot, P. Dufresne, J.-L. Bellier, J. Benshila, R. Bony, S. Brockmann, P. Cadule, P. Caubel, A. Codron, F. Noblet, N. Denvil, S. Fairhead, L. Fichefet, T. Foujols, M.-A. Friedlingstein, P. Goosse, H. Grandpeix, J.-Y. Guilyardi, E. Hourdin, F. Idelkadi, A. Kageyama, M. Krinner, G. Lévy, C. Madec, G. Mignot, J. Musat, I. Swingedouw, D. Talandier, C. |
author_sort |
Marti, Olivier |
title |
Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution |
title_short |
Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution |
title_full |
Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution |
title_fullStr |
Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution |
title_full_unstemmed |
Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution |
title_sort |
key features of the ipsl ocean atmosphere model and its sensitivity to atmospheric resolution |
publisher |
Springer |
publishDate |
2009 |
url |
https://centaur.reading.ac.uk/5878/ https://doi.org/10.1007/s00382-009-0640-6 |
long_lat |
ENVELOPE(141.467,141.467,-66.782,-66.782) |
geographic |
Laplace |
geographic_facet |
Laplace |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
Marti, O., Braconnot, P., Dufresne, J.-L., Bellier, J., Benshila, R., Bony, S., Brockmann, P., Cadule, P., Caubel, A., Codron, F., Noblet, N., Denvil, S., Fairhead, L., Fichefet, T., Foujols, M.-A., Friedlingstein, P., Goosse, H., Grandpeix, J.-Y., Guilyardi, E. <https://centaur.reading.ac.uk/view/creators/90000869.html>, Hourdin, F., Idelkadi, A., Kageyama, M., Krinner, G., Lévy, C., Madec, G., Mignot, J., Musat, I., Swingedouw, D. and Talandier, C. (2009) Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution. Climate Dynamics, 34 (1). pp. 1-26. ISSN 0930-7575 doi: https://doi.org/10.1007/s00382-009-0640-6 <https://doi.org/10.1007/s00382-009-0640-6> |
op_doi |
https://doi.org/10.1007/s00382-009-0640-6 |
container_title |
Climate Dynamics |
container_volume |
34 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
26 |
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1802647280816226304 |