The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate
Abstract Current state‐of‐the‐art climate models fail to capture accurately the path of the Gulf Stream and North Atlantic Current. This leads to a warm bias near the North American coast, where the modelled Gulf Stream separates from the coast further north, and a cold anomaly to the east of the Gr...
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crwiley:10.1002/qj.1912 2024-06-23T07:54:47+00:00 The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate Keeley, S. P. E. Sutton, R. T. Shaffrey, L. C. 2012 http://dx.doi.org/10.1002/qj.1912 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.1912 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.1912 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Quarterly Journal of the Royal Meteorological Society volume 138, issue 668, page 1774-1783 ISSN 0035-9009 1477-870X journal-article 2012 crwiley https://doi.org/10.1002/qj.1912 2024-06-06T04:24:04Z Abstract Current state‐of‐the‐art climate models fail to capture accurately the path of the Gulf Stream and North Atlantic Current. This leads to a warm bias near the North American coast, where the modelled Gulf Stream separates from the coast further north, and a cold anomaly to the east of the Grand Banks of Newfoundland, where the North Atlantic Current remains too zonal in this region. Using an atmosphere‐only model forced with the sea surface temperature (SST) biases in the North Atlantic, we consider the impact they have on the mean state and the variability in the North Atlantic European region in winter. Our results show that the SST errors produce a mean sea‐level pressure response that is similar in magnitude and pattern to the atmospheric circulation errors in the coupled climate model. The work also suggests that errors in the coupled model storm tracks and North Atlantic Oscillation, compared to reanalysis data, can also be explained partly by these SST errors. Our results suggest that both the error in the Gulf Stream separation location and the path of the North Atlantic Current around the Grand Banks play important roles in affecting the atmospheric circulation. Reducing these coupled model errors could improve significantly the representation of the large‐scale atmospheric circulation of the North Atlantic and European region. Copyright © 2012 Royal Meteorological Society Article in Journal/Newspaper Newfoundland north atlantic current North Atlantic North Atlantic oscillation Wiley Online Library Quarterly Journal of the Royal Meteorological Society 138 668 1774 1783 |
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English |
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Abstract Current state‐of‐the‐art climate models fail to capture accurately the path of the Gulf Stream and North Atlantic Current. This leads to a warm bias near the North American coast, where the modelled Gulf Stream separates from the coast further north, and a cold anomaly to the east of the Grand Banks of Newfoundland, where the North Atlantic Current remains too zonal in this region. Using an atmosphere‐only model forced with the sea surface temperature (SST) biases in the North Atlantic, we consider the impact they have on the mean state and the variability in the North Atlantic European region in winter. Our results show that the SST errors produce a mean sea‐level pressure response that is similar in magnitude and pattern to the atmospheric circulation errors in the coupled climate model. The work also suggests that errors in the coupled model storm tracks and North Atlantic Oscillation, compared to reanalysis data, can also be explained partly by these SST errors. Our results suggest that both the error in the Gulf Stream separation location and the path of the North Atlantic Current around the Grand Banks play important roles in affecting the atmospheric circulation. Reducing these coupled model errors could improve significantly the representation of the large‐scale atmospheric circulation of the North Atlantic and European region. Copyright © 2012 Royal Meteorological Society |
format |
Article in Journal/Newspaper |
author |
Keeley, S. P. E. Sutton, R. T. Shaffrey, L. C. |
spellingShingle |
Keeley, S. P. E. Sutton, R. T. Shaffrey, L. C. The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate |
author_facet |
Keeley, S. P. E. Sutton, R. T. Shaffrey, L. C. |
author_sort |
Keeley, S. P. E. |
title |
The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate |
title_short |
The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate |
title_full |
The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate |
title_fullStr |
The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate |
title_full_unstemmed |
The impact of North Atlantic sea surface temperature errors on the simulation of North Atlantic European region climate |
title_sort |
impact of north atlantic sea surface temperature errors on the simulation of north atlantic european region climate |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/qj.1912 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.1912 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.1912 |
genre |
Newfoundland north atlantic current North Atlantic North Atlantic oscillation |
genre_facet |
Newfoundland north atlantic current North Atlantic North Atlantic oscillation |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 138, issue 668, page 1774-1783 ISSN 0035-9009 1477-870X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/qj.1912 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
138 |
container_issue |
668 |
container_start_page |
1774 |
op_container_end_page |
1783 |
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1802647055956443136 |