The extratropical pacemaker effect on Pacific Walker circulation variability ...
<!--!introduction!--> The Pacific Walker circulation variability is associated with El Niño-Southern Oscillation and Interdecadal Pacific Oscillation and affects the global climate. The Walker circulation has strengthened since the comprehensive satellite observations began. This trend apparen...
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GFZ German Research Centre for Geosciences
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ftdatacite:10.57757/iugg23-2149 2023-07-23T04:21:53+02:00 The extratropical pacemaker effect on Pacific Walker circulation variability ... Kosaka, Yu Toda, Masaki Miyamoto, Ayumu Watanabe, Masahiro 2023 https://dx.doi.org/10.57757/iugg23-2149 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018677 unknown GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Article ConferencePaper Oral 2023 ftdatacite https://doi.org/10.57757/iugg23-2149 2023-07-03T18:35:08Z <!--!introduction!--> The Pacific Walker circulation variability is associated with El Niño-Southern Oscillation and Interdecadal Pacific Oscillation and affects the global climate. The Walker circulation has strengthened since the comprehensive satellite observations began. This trend apparently contradicts with climate model simulations driven by historical radiative forcing, which show its weakening. Regarding this model-observation inconsistency, recent studies argue the influence of biases in the South Pacific and Southern Ocean. In the present study, we examine the remote influence of extratropical SST variability on the Pacific Walker circulation by extratropical ocean pacemaker experiments with a climate model. Restoring SST variability toward observations poleward of 15º latitudes in the Pacific (with a linearly tapering buffer zone between 10º and 15º) greatly constrains the Walker circulation variability in the interannual to multidecadal time scales. This extratropical pacemaker effect ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean Pacific |
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DataCite Metadata Store (German National Library of Science and Technology) |
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description |
<!--!introduction!--> The Pacific Walker circulation variability is associated with El Niño-Southern Oscillation and Interdecadal Pacific Oscillation and affects the global climate. The Walker circulation has strengthened since the comprehensive satellite observations began. This trend apparently contradicts with climate model simulations driven by historical radiative forcing, which show its weakening. Regarding this model-observation inconsistency, recent studies argue the influence of biases in the South Pacific and Southern Ocean. In the present study, we examine the remote influence of extratropical SST variability on the Pacific Walker circulation by extratropical ocean pacemaker experiments with a climate model. Restoring SST variability toward observations poleward of 15º latitudes in the Pacific (with a linearly tapering buffer zone between 10º and 15º) greatly constrains the Walker circulation variability in the interannual to multidecadal time scales. This extratropical pacemaker effect ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
Kosaka, Yu Toda, Masaki Miyamoto, Ayumu Watanabe, Masahiro |
spellingShingle |
Kosaka, Yu Toda, Masaki Miyamoto, Ayumu Watanabe, Masahiro The extratropical pacemaker effect on Pacific Walker circulation variability ... |
author_facet |
Kosaka, Yu Toda, Masaki Miyamoto, Ayumu Watanabe, Masahiro |
author_sort |
Kosaka, Yu |
title |
The extratropical pacemaker effect on Pacific Walker circulation variability ... |
title_short |
The extratropical pacemaker effect on Pacific Walker circulation variability ... |
title_full |
The extratropical pacemaker effect on Pacific Walker circulation variability ... |
title_fullStr |
The extratropical pacemaker effect on Pacific Walker circulation variability ... |
title_full_unstemmed |
The extratropical pacemaker effect on Pacific Walker circulation variability ... |
title_sort |
extratropical pacemaker effect on pacific walker circulation variability ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-2149 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018677 |
geographic |
Southern Ocean Pacific |
geographic_facet |
Southern Ocean Pacific |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-2149 |
_version_ |
1772188208317071360 |