Quasi-Biennial Oscillation influence on Australian summer rainfall
Abstract The variability and distribution of Australia’s summer rainfall are influenced by modes of climate variability on multi-week to multi-year time scales. Here, we investigate the role of the stratospheric quasi-biennial oscillation (QBO) and demonstrate that the QBO influences rainfall variat...
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ftdoajarticles:oai:doaj.org/article:01be4415536042eb95ab6ed432f43038 2024-02-11T10:08:37+01:00 Quasi-Biennial Oscillation influence on Australian summer rainfall Xiaoxuan Jiang Neil J. Holbrook Andrew G. Marshall Peter T. Love 2024-01-01T00:00:00Z https://doi.org/10.1038/s41612-023-00552-7 https://doaj.org/article/01be4415536042eb95ab6ed432f43038 EN eng Nature Portfolio https://doi.org/10.1038/s41612-023-00552-7 https://doaj.org/toc/2397-3722 doi:10.1038/s41612-023-00552-7 2397-3722 https://doaj.org/article/01be4415536042eb95ab6ed432f43038 npj Climate and Atmospheric Science, Vol 7, Iss 1, Pp 1-14 (2024) Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2024 ftdoajarticles https://doi.org/10.1038/s41612-023-00552-7 2024-01-21T01:43:09Z Abstract The variability and distribution of Australia’s summer rainfall are influenced by modes of climate variability on multi-week to multi-year time scales. Here, we investigate the role of the stratospheric quasi-biennial oscillation (QBO) and demonstrate that the QBO influences rainfall variations and extremes’ responses across large regions of Australia. We find the QBO modulates convective heating to the east of the Maritime Continent and over the central South Atlantic Ocean in the austral summer. The baroclinic response and barotropic structure of the extra-tropical Rossby wave train induces anomalous circulation that affects the distribution and amount of rainfall over Australia. Our analysis and findings of QBO teleconnections with the dynamics that drive Australia’s rainfall variability and extremes represents a pathway to improve our understanding of rainfall potential predictability and scope to extend Australia’s rainfall prediction lead times. Article in Journal/Newspaper South Atlantic Ocean Directory of Open Access Journals: DOAJ Articles Austral npj Climate and Atmospheric Science 7 1 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Xiaoxuan Jiang Neil J. Holbrook Andrew G. Marshall Peter T. Love Quasi-Biennial Oscillation influence on Australian summer rainfall |
topic_facet |
Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Abstract The variability and distribution of Australia’s summer rainfall are influenced by modes of climate variability on multi-week to multi-year time scales. Here, we investigate the role of the stratospheric quasi-biennial oscillation (QBO) and demonstrate that the QBO influences rainfall variations and extremes’ responses across large regions of Australia. We find the QBO modulates convective heating to the east of the Maritime Continent and over the central South Atlantic Ocean in the austral summer. The baroclinic response and barotropic structure of the extra-tropical Rossby wave train induces anomalous circulation that affects the distribution and amount of rainfall over Australia. Our analysis and findings of QBO teleconnections with the dynamics that drive Australia’s rainfall variability and extremes represents a pathway to improve our understanding of rainfall potential predictability and scope to extend Australia’s rainfall prediction lead times. |
format |
Article in Journal/Newspaper |
author |
Xiaoxuan Jiang Neil J. Holbrook Andrew G. Marshall Peter T. Love |
author_facet |
Xiaoxuan Jiang Neil J. Holbrook Andrew G. Marshall Peter T. Love |
author_sort |
Xiaoxuan Jiang |
title |
Quasi-Biennial Oscillation influence on Australian summer rainfall |
title_short |
Quasi-Biennial Oscillation influence on Australian summer rainfall |
title_full |
Quasi-Biennial Oscillation influence on Australian summer rainfall |
title_fullStr |
Quasi-Biennial Oscillation influence on Australian summer rainfall |
title_full_unstemmed |
Quasi-Biennial Oscillation influence on Australian summer rainfall |
title_sort |
quasi-biennial oscillation influence on australian summer rainfall |
publisher |
Nature Portfolio |
publishDate |
2024 |
url |
https://doi.org/10.1038/s41612-023-00552-7 https://doaj.org/article/01be4415536042eb95ab6ed432f43038 |
geographic |
Austral |
geographic_facet |
Austral |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
npj Climate and Atmospheric Science, Vol 7, Iss 1, Pp 1-14 (2024) |
op_relation |
https://doi.org/10.1038/s41612-023-00552-7 https://doaj.org/toc/2397-3722 doi:10.1038/s41612-023-00552-7 2397-3722 https://doaj.org/article/01be4415536042eb95ab6ed432f43038 |
op_doi |
https://doi.org/10.1038/s41612-023-00552-7 |
container_title |
npj Climate and Atmospheric Science |
container_volume |
7 |
container_issue |
1 |
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1790608040491220992 |