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Pacific Ocean decadal forcing of long-term changes in the western Pacific subtropical high

The western Pacific subtropical high (WPSH) has a significant effect on droughts, heat waves, and tropical cyclone tracks over East Asia and the northwest Pacific. The WPSH has intensified during the past three decades, but its causes are not yet well understood. Here we show that the Pacific Decada...

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Detalles Bibliográficos
Autores principales: Matsumura, Shinji, Horinouchi, Takeshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5129182/
https://www.ncbi.nlm.nih.gov/pubmed/27901052
http://dx.doi.org/10.1038/srep37765
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author Matsumura, Shinji
Horinouchi, Takeshi
author_facet Matsumura, Shinji
Horinouchi, Takeshi
author_sort Matsumura, Shinji
collection PubMed
description The western Pacific subtropical high (WPSH) has a significant effect on droughts, heat waves, and tropical cyclone tracks over East Asia and the northwest Pacific. The WPSH has intensified during the past three decades, but its causes are not yet well understood. Here we show that the Pacific Decadal Oscillation (PDO) is responsible for the long-term changes in the WPSH through the meridional shift of the subtropical jet, based on comprehensive data analysis and model results. El Niño–Southern Oscillation (ENSO) is the leading forcing of WPSH variability over interannual timescales, whereas the PDO accounts for its low-frequency variability, resulting in it being independent of ENSO with regard to WPSH variability. The PDO in summer can be interpreted as a coupling with the WPSH. Our results provide useful information for projecting long-term changes in the WPSH.
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spelling pubmed-51291822016-12-15 Pacific Ocean decadal forcing of long-term changes in the western Pacific subtropical high Matsumura, Shinji Horinouchi, Takeshi Sci Rep Article The western Pacific subtropical high (WPSH) has a significant effect on droughts, heat waves, and tropical cyclone tracks over East Asia and the northwest Pacific. The WPSH has intensified during the past three decades, but its causes are not yet well understood. Here we show that the Pacific Decadal Oscillation (PDO) is responsible for the long-term changes in the WPSH through the meridional shift of the subtropical jet, based on comprehensive data analysis and model results. El Niño–Southern Oscillation (ENSO) is the leading forcing of WPSH variability over interannual timescales, whereas the PDO accounts for its low-frequency variability, resulting in it being independent of ENSO with regard to WPSH variability. The PDO in summer can be interpreted as a coupling with the WPSH. Our results provide useful information for projecting long-term changes in the WPSH. Nature Publishing Group 2016-11-30 /pmc/articles/PMC5129182/ /pubmed/27901052 http://dx.doi.org/10.1038/srep37765 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Matsumura, Shinji
Horinouchi, Takeshi
Pacific Ocean decadal forcing of long-term changes in the western Pacific subtropical high
title Pacific Ocean decadal forcing of long-term changes in the western Pacific subtropical high
title_full Pacific Ocean decadal forcing of long-term changes in the western Pacific subtropical high
title_fullStr Pacific Ocean decadal forcing of long-term changes in the western Pacific subtropical high
title_full_unstemmed Pacific Ocean decadal forcing of long-term changes in the western Pacific subtropical high
title_short Pacific Ocean decadal forcing of long-term changes in the western Pacific subtropical high
title_sort pacific ocean decadal forcing of long-term changes in the western pacific subtropical high
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5129182/
https://www.ncbi.nlm.nih.gov/pubmed/27901052
http://dx.doi.org/10.1038/srep37765
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