The signature of oceanic processes in decadal extratropical SST anomalies
The relationship between decadal SST and turbulent heat‐fluxes is assessed and used to identify where oceanic processes play an important role in extratropical decadal SST variability. In observational datasets and coupled climate model simulations from the CMIP5 archive, positive correlations betwe...
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| Format: | Journal article |
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John Wiley & Sons
2018
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| _version_ | 1797098251634081792 |
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| author | O'Reilly, C Zanna, L |
| author_facet | O'Reilly, C Zanna, L |
| author_sort | O'Reilly, C |
| collection | OXFORD |
| description | The relationship between decadal SST and turbulent heat‐fluxes is assessed and used to identify where oceanic processes play an important role in extratropical decadal SST variability. In observational datasets and coupled climate model simulations from the CMIP5 archive, positive correlations between upward turbulent heat flux and SSTs indicate an active role of oceanic processes over regions in the North Atlantic, Northwest Pacific, Southern Pacific and Southern Atlantic. The contrasting nature of oceanic influence on decadal SST anomalies in the Northwest Pacific and North Atlantic is identified. Over the Northwest Pacific, SST anomalies are consistent with changes in the horizontal wind‐driven gyre circulation on timescales of between 3‐7 years, in both the observations and models. Over the North Atlantic, SST anomalies are also preceded by atmospheric circulation anomalies, though the response is stronger at longer timescales ‐ peaking at around 20‐years in the observations and at around 10‐years in the models. |
| first_indexed | 2024-03-07T05:06:52Z |
| format | Journal article |
| id | oxford-uuid:da3a4e12-a362-42a4-8993-4af0b407803d |
| institution | University of Oxford |
| last_indexed | 2024-03-07T05:06:52Z |
| publishDate | 2018 |
| publisher | John Wiley & Sons |
| record_format | dspace |
| spelling | oxford-uuid:da3a4e12-a362-42a4-8993-4af0b407803d2022-03-27T09:01:49ZThe signature of oceanic processes in decadal extratropical SST anomaliesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:da3a4e12-a362-42a4-8993-4af0b407803dSymplectic Elements at OxfordJohn Wiley & Sons2018O'Reilly, CZanna, LThe relationship between decadal SST and turbulent heat‐fluxes is assessed and used to identify where oceanic processes play an important role in extratropical decadal SST variability. In observational datasets and coupled climate model simulations from the CMIP5 archive, positive correlations between upward turbulent heat flux and SSTs indicate an active role of oceanic processes over regions in the North Atlantic, Northwest Pacific, Southern Pacific and Southern Atlantic. The contrasting nature of oceanic influence on decadal SST anomalies in the Northwest Pacific and North Atlantic is identified. Over the Northwest Pacific, SST anomalies are consistent with changes in the horizontal wind‐driven gyre circulation on timescales of between 3‐7 years, in both the observations and models. Over the North Atlantic, SST anomalies are also preceded by atmospheric circulation anomalies, though the response is stronger at longer timescales ‐ peaking at around 20‐years in the observations and at around 10‐years in the models. |
| spellingShingle | O'Reilly, C Zanna, L The signature of oceanic processes in decadal extratropical SST anomalies |
| title | The signature of oceanic processes in decadal extratropical SST anomalies |
| title_full | The signature of oceanic processes in decadal extratropical SST anomalies |
| title_fullStr | The signature of oceanic processes in decadal extratropical SST anomalies |
| title_full_unstemmed | The signature of oceanic processes in decadal extratropical SST anomalies |
| title_short | The signature of oceanic processes in decadal extratropical SST anomalies |
| title_sort | signature of oceanic processes in decadal extratropical sst anomalies |
| work_keys_str_mv | AT oreillyc thesignatureofoceanicprocessesindecadalextratropicalsstanomalies AT zannal thesignatureofoceanicprocessesindecadalextratropicalsstanomalies AT oreillyc signatureofoceanicprocessesindecadalextratropicalsstanomalies AT zannal signatureofoceanicprocessesindecadalextratropicalsstanomalies |