Increased amplitude of the North Pacific Gyre Oscillation towards recent: Evidence from tree‐ring‐based reconstruction since 1596
Abstract The North Pacific Gyre Oscillation (NPGO) is the second leading mode of the sea surface height (SSH) of the North Pacific Ocean, playing a key role in causing regional ecosystem changes and large‐scale climate anomalies. However, its long‐term evolution prior to the industrial era is largel...
Published in: | International Journal of Climatology |
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crwiley:10.1002/joc.7596 2024-06-02T08:11:31+00:00 Increased amplitude of the North Pacific Gyre Oscillation towards recent: Evidence from tree‐ring‐based reconstruction since 1596 Dong, Zhipeng Zhou, Feifei Zheng, Zhuangpeng Fang, Keyan National Natural Science Foundation of China 2022 http://dx.doi.org/10.1002/joc.7596 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.7596 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.7596 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.7596 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 42, issue 12, page 6403-6412 ISSN 0899-8418 1097-0088 journal-article 2022 crwiley https://doi.org/10.1002/joc.7596 2024-05-03T11:27:31Z Abstract The North Pacific Gyre Oscillation (NPGO) is the second leading mode of the sea surface height (SSH) of the North Pacific Ocean, playing a key role in causing regional ecosystem changes and large‐scale climate anomalies. However, its long‐term evolution prior to the industrial era is largely unknown. This study provides a reconstruction of the NPGO from 1596 onwards from 19 NPGO‐sensitive tree‐ring chronologies in the Himalayan Mountains, the Rocky Mountains, the Coastal Mountains and the Alaskan Mountain Range, which explained 57.1% of the observed NPGO variations. The selected tree‐ring chronologies showed strong linkages with the NPGO but weak or no correlations with the Pacific Decadal Oscillation (PDO), another leading mode of the North Pacific Ocean. The reconstruction revealed that the NPGO variance and amplitude are not only the strongest towards recent in the instrumental period but also in the reconstruction period. The linkages between the NPGO and El Niño–Southern Oscillation (ENSO) became strengthened towards recent, which may be attributed to the increased occurrence of central Pacific ENSO during the anthropogenic warming period. In addition, close linkages were found between the NPGO and the multidecadal Pacific variability (MPV), the North Atlantic Oscillation (NAO), the Atlantic Multidecadal Oscillation (AMO) at the interannual and multidecadal scales, indicative of strong teleconnections between the ocean–atmosphere modes of the Pacific and Atlantic. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Wiley Online Library Pacific International Journal of Climatology 42 12 6403 6412 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The North Pacific Gyre Oscillation (NPGO) is the second leading mode of the sea surface height (SSH) of the North Pacific Ocean, playing a key role in causing regional ecosystem changes and large‐scale climate anomalies. However, its long‐term evolution prior to the industrial era is largely unknown. This study provides a reconstruction of the NPGO from 1596 onwards from 19 NPGO‐sensitive tree‐ring chronologies in the Himalayan Mountains, the Rocky Mountains, the Coastal Mountains and the Alaskan Mountain Range, which explained 57.1% of the observed NPGO variations. The selected tree‐ring chronologies showed strong linkages with the NPGO but weak or no correlations with the Pacific Decadal Oscillation (PDO), another leading mode of the North Pacific Ocean. The reconstruction revealed that the NPGO variance and amplitude are not only the strongest towards recent in the instrumental period but also in the reconstruction period. The linkages between the NPGO and El Niño–Southern Oscillation (ENSO) became strengthened towards recent, which may be attributed to the increased occurrence of central Pacific ENSO during the anthropogenic warming period. In addition, close linkages were found between the NPGO and the multidecadal Pacific variability (MPV), the North Atlantic Oscillation (NAO), the Atlantic Multidecadal Oscillation (AMO) at the interannual and multidecadal scales, indicative of strong teleconnections between the ocean–atmosphere modes of the Pacific and Atlantic. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Dong, Zhipeng Zhou, Feifei Zheng, Zhuangpeng Fang, Keyan |
spellingShingle |
Dong, Zhipeng Zhou, Feifei Zheng, Zhuangpeng Fang, Keyan Increased amplitude of the North Pacific Gyre Oscillation towards recent: Evidence from tree‐ring‐based reconstruction since 1596 |
author_facet |
Dong, Zhipeng Zhou, Feifei Zheng, Zhuangpeng Fang, Keyan |
author_sort |
Dong, Zhipeng |
title |
Increased amplitude of the North Pacific Gyre Oscillation towards recent: Evidence from tree‐ring‐based reconstruction since 1596 |
title_short |
Increased amplitude of the North Pacific Gyre Oscillation towards recent: Evidence from tree‐ring‐based reconstruction since 1596 |
title_full |
Increased amplitude of the North Pacific Gyre Oscillation towards recent: Evidence from tree‐ring‐based reconstruction since 1596 |
title_fullStr |
Increased amplitude of the North Pacific Gyre Oscillation towards recent: Evidence from tree‐ring‐based reconstruction since 1596 |
title_full_unstemmed |
Increased amplitude of the North Pacific Gyre Oscillation towards recent: Evidence from tree‐ring‐based reconstruction since 1596 |
title_sort |
increased amplitude of the north pacific gyre oscillation towards recent: evidence from tree‐ring‐based reconstruction since 1596 |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/joc.7596 https://onlinelibrary.wiley.com/doi/pdf/10.1002/joc.7596 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/joc.7596 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.7596 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
International Journal of Climatology volume 42, issue 12, page 6403-6412 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.7596 |
container_title |
International Journal of Climatology |
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42 |
container_issue |
12 |
container_start_page |
6403 |
op_container_end_page |
6412 |
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1800757692322545664 |