The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations
The Global Coupled 3 (GC3) configuration of the Met Office Unified Model is presented. Amongst other applications, GC3 is the basis of the United Kingdom's submission to the Coupled Model Intercomparison Project 6 (CMIP6). This paper documents the model components that make up the configuration...
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American Geophysical Union
2018
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Online Access: | https://centaur.reading.ac.uk/74261/ https://centaur.reading.ac.uk/74261/8/Williams_et_al-2018-Journal_of_Advances_in_Modeling_Earth_Systems.pdf https://centaur.reading.ac.uk/74261/1/gc3_afterreview2.pdf http://onlinelibrary.wiley.com/doi/10.1002/2017MS001115/abstract |
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ftunivreading:oai:centaur.reading.ac.uk:74261 2024-06-23T07:56:55+00:00 The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations Williams, K. D. Copsey, D. Blockley, E. W. Bodas-Salcedo, A. Calvert, D. Comer, R. Davis., P. Graham, T. Hewitt, H. T. Hill, R. Hyder, P. Ineson, S. Johns, T. C. Keen, A. B. Lee, R. W. Megann, A. Milton, S. F. Rae, J. G. L. Roberts, M. J. Scaife, A. A. Schiemann, R. Storkey, D. Thorpe, L. Watterson, I. G. Walters, D. N. West, A. Wood, R. A. Woollings, T. Xavier, P. K. 2018-02 text https://centaur.reading.ac.uk/74261/ https://centaur.reading.ac.uk/74261/8/Williams_et_al-2018-Journal_of_Advances_in_Modeling_Earth_Systems.pdf https://centaur.reading.ac.uk/74261/1/gc3_afterreview2.pdf http://onlinelibrary.wiley.com/doi/10.1002/2017MS001115/abstract en eng American Geophysical Union https://centaur.reading.ac.uk/74261/8/Williams_et_al-2018-Journal_of_Advances_in_Modeling_Earth_Systems.pdf https://centaur.reading.ac.uk/74261/1/gc3_afterreview2.pdf Williams, K. D., Copsey, D., Blockley, E. W., Bodas-Salcedo, A., Calvert, D., Comer, R., Davis., P., Graham, T., Hewitt, H. T., Hill, R., Hyder, P., Ineson, S., Johns, T. C., Keen, A. B., Lee, R. W. <https://centaur.reading.ac.uk/view/creators/90006789.html> orcid:0000-0002-1946-5559 , Megann, A., Milton, S. F., Rae, J. G. L., Roberts, M. J., Scaife, A. A., Schiemann, R. <https://centaur.reading.ac.uk/view/creators/90003672.html> orcid:0000-0003-3095-9856 , Storkey, D., Thorpe, L., Watterson, I. G., Walters, D. N., West, A., Wood, R. A., Woollings, T. <https://centaur.reading.ac.uk/view/creators/90000944.html> and Xavier, P. K. (2018) The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations. Journal of Advances in Modeling Earth Systems, 10 (2). pp. 357-380. ISSN 1942-2466 doi: https://doi.org/10.1002/2017MS001115 <https://doi.org/10.1002/2017MS001115> cc_by_4 Article PeerReviewed 2018 ftunivreading 2024-06-11T15:07:33Z The Global Coupled 3 (GC3) configuration of the Met Office Unified Model is presented. Amongst other applications, GC3 is the basis of the United Kingdom's submission to the Coupled Model Intercomparison Project 6 (CMIP6). This paper documents the model components that make up the configuration (although the scientific description of these components are in companion papers), and details the coupling between them. The performance of GC3 is assessed in terms of mean biases and variability in long climate simulations using present-day forcing. The suitability of the configuration for predictability on shorter timescales (weather and seasonal forecasting) is also briefly discussed. The performance of GC3 is compared against GC2, the previous Met Office coupled model configuration, and against an older configuration (HadGEM2-AO) which was the submission to CMIP5. In many respects, the performance of GC3 is comparable with GC2, however there is a notable improvement in the Southern Ocean warm sea surface temperature bias which has been reduced by 75%, and there are improvements in cloud amount and some aspects of tropical variability. Relative to HadGEM2-AO, many aspects of the present-day climate are improved in GC3 including tropospheric and stratospheric temperature structure, most aspects of tropical and extra-tropical variability and top-of-atmosphere & surface fluxes. A number of outstanding errors are identified including a residual asymmetric sea surface temperature bias (cool northern hemisphere, warm Southern Ocean), an overly strong global hydrological cycle and insufficient European blocking. Article in Journal/Newspaper Southern Ocean CentAUR: Central Archive at the University of Reading Southern Ocean Journal of Advances in Modeling Earth Systems 10 2 357 380 |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
language |
English |
description |
The Global Coupled 3 (GC3) configuration of the Met Office Unified Model is presented. Amongst other applications, GC3 is the basis of the United Kingdom's submission to the Coupled Model Intercomparison Project 6 (CMIP6). This paper documents the model components that make up the configuration (although the scientific description of these components are in companion papers), and details the coupling between them. The performance of GC3 is assessed in terms of mean biases and variability in long climate simulations using present-day forcing. The suitability of the configuration for predictability on shorter timescales (weather and seasonal forecasting) is also briefly discussed. The performance of GC3 is compared against GC2, the previous Met Office coupled model configuration, and against an older configuration (HadGEM2-AO) which was the submission to CMIP5. In many respects, the performance of GC3 is comparable with GC2, however there is a notable improvement in the Southern Ocean warm sea surface temperature bias which has been reduced by 75%, and there are improvements in cloud amount and some aspects of tropical variability. Relative to HadGEM2-AO, many aspects of the present-day climate are improved in GC3 including tropospheric and stratospheric temperature structure, most aspects of tropical and extra-tropical variability and top-of-atmosphere & surface fluxes. A number of outstanding errors are identified including a residual asymmetric sea surface temperature bias (cool northern hemisphere, warm Southern Ocean), an overly strong global hydrological cycle and insufficient European blocking. |
format |
Article in Journal/Newspaper |
author |
Williams, K. D. Copsey, D. Blockley, E. W. Bodas-Salcedo, A. Calvert, D. Comer, R. Davis., P. Graham, T. Hewitt, H. T. Hill, R. Hyder, P. Ineson, S. Johns, T. C. Keen, A. B. Lee, R. W. Megann, A. Milton, S. F. Rae, J. G. L. Roberts, M. J. Scaife, A. A. Schiemann, R. Storkey, D. Thorpe, L. Watterson, I. G. Walters, D. N. West, A. Wood, R. A. Woollings, T. Xavier, P. K. |
spellingShingle |
Williams, K. D. Copsey, D. Blockley, E. W. Bodas-Salcedo, A. Calvert, D. Comer, R. Davis., P. Graham, T. Hewitt, H. T. Hill, R. Hyder, P. Ineson, S. Johns, T. C. Keen, A. B. Lee, R. W. Megann, A. Milton, S. F. Rae, J. G. L. Roberts, M. J. Scaife, A. A. Schiemann, R. Storkey, D. Thorpe, L. Watterson, I. G. Walters, D. N. West, A. Wood, R. A. Woollings, T. Xavier, P. K. The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations |
author_facet |
Williams, K. D. Copsey, D. Blockley, E. W. Bodas-Salcedo, A. Calvert, D. Comer, R. Davis., P. Graham, T. Hewitt, H. T. Hill, R. Hyder, P. Ineson, S. Johns, T. C. Keen, A. B. Lee, R. W. Megann, A. Milton, S. F. Rae, J. G. L. Roberts, M. J. Scaife, A. A. Schiemann, R. Storkey, D. Thorpe, L. Watterson, I. G. Walters, D. N. West, A. Wood, R. A. Woollings, T. Xavier, P. K. |
author_sort |
Williams, K. D. |
title |
The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations |
title_short |
The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations |
title_full |
The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations |
title_fullStr |
The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations |
title_full_unstemmed |
The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations |
title_sort |
met office global coupled model 3.0 and 3.1 (gc3.0 & gc3.1) configurations |
publisher |
American Geophysical Union |
publishDate |
2018 |
url |
https://centaur.reading.ac.uk/74261/ https://centaur.reading.ac.uk/74261/8/Williams_et_al-2018-Journal_of_Advances_in_Modeling_Earth_Systems.pdf https://centaur.reading.ac.uk/74261/1/gc3_afterreview2.pdf http://onlinelibrary.wiley.com/doi/10.1002/2017MS001115/abstract |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://centaur.reading.ac.uk/74261/8/Williams_et_al-2018-Journal_of_Advances_in_Modeling_Earth_Systems.pdf https://centaur.reading.ac.uk/74261/1/gc3_afterreview2.pdf Williams, K. D., Copsey, D., Blockley, E. W., Bodas-Salcedo, A., Calvert, D., Comer, R., Davis., P., Graham, T., Hewitt, H. T., Hill, R., Hyder, P., Ineson, S., Johns, T. C., Keen, A. B., Lee, R. W. <https://centaur.reading.ac.uk/view/creators/90006789.html> orcid:0000-0002-1946-5559 , Megann, A., Milton, S. F., Rae, J. G. L., Roberts, M. J., Scaife, A. A., Schiemann, R. <https://centaur.reading.ac.uk/view/creators/90003672.html> orcid:0000-0003-3095-9856 , Storkey, D., Thorpe, L., Watterson, I. G., Walters, D. N., West, A., Wood, R. A., Woollings, T. <https://centaur.reading.ac.uk/view/creators/90000944.html> and Xavier, P. K. (2018) The Met Office Global Coupled model 3.0 and 3.1 (GC3.0 & GC3.1) configurations. Journal of Advances in Modeling Earth Systems, 10 (2). pp. 357-380. ISSN 1942-2466 doi: https://doi.org/10.1002/2017MS001115 <https://doi.org/10.1002/2017MS001115> |
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cc_by_4 |
container_title |
Journal of Advances in Modeling Earth Systems |
container_volume |
10 |
container_issue |
2 |
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357 |
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