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...
Published in: | Geophysical Research Letters |
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John Wiley & Sons
2018
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Online Access: | https://doi.org/10.1029/2018GL079077 https://ora.ox.ac.uk/objects/uuid:da3a4e12-a362-42a4-8993-4af0b407803d |
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ftuloxford:oai:ora.ox.ac.uk:uuid:da3a4e12-a362-42a4-8993-4af0b407803d 2023-05-15T17:27:44+02:00 The signature of oceanic processes in decadal extratropical SST anomalies O'Reilly, C Zanna, L 2018-07-27 https://doi.org/10.1029/2018GL079077 https://ora.ox.ac.uk/objects/uuid:da3a4e12-a362-42a4-8993-4af0b407803d unknown John Wiley & Sons doi:10.1029/2018GL079077 https://ora.ox.ac.uk/objects/uuid:da3a4e12-a362-42a4-8993-4af0b407803d https://doi.org/10.1029/2018GL079077 info:eu-repo/semantics/openAccess CC Attribution (CC BY) CC-BY Journal article 2018 ftuloxford https://doi.org/10.1029/2018GL079077 2022-06-28T20:25:28Z 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. Article in Journal/Newspaper North Atlantic ORA - Oxford University Research Archive Pacific Geophysical Research Letters 45 15 7719 7730 |
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Open Polar |
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ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
unknown |
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. |
format |
Article in Journal/Newspaper |
author |
O'Reilly, C Zanna, L |
spellingShingle |
O'Reilly, C Zanna, L The signature of oceanic processes in decadal extratropical SST anomalies |
author_facet |
O'Reilly, C Zanna, L |
author_sort |
O'Reilly, C |
title |
The signature of oceanic processes in decadal extratropical SST anomalies |
title_short |
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_sort |
signature of oceanic processes in decadal extratropical sst anomalies |
publisher |
John Wiley & Sons |
publishDate |
2018 |
url |
https://doi.org/10.1029/2018GL079077 https://ora.ox.ac.uk/objects/uuid:da3a4e12-a362-42a4-8993-4af0b407803d |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1029/2018GL079077 https://ora.ox.ac.uk/objects/uuid:da3a4e12-a362-42a4-8993-4af0b407803d https://doi.org/10.1029/2018GL079077 |
op_rights |
info:eu-repo/semantics/openAccess CC Attribution (CC BY) |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2018GL079077 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
15 |
container_start_page |
7719 |
op_container_end_page |
7730 |
_version_ |
1766120007415103488 |