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Linking the atmospheric Pacific-South American mode with oceanic variability and predictability
Citation
Lou, J and O'Kane, TJ and Holbrook, NJ, Linking the atmospheric Pacific-South American mode with oceanic variability and predictability, Communications Earth & Environment, 2 Article 223. ISSN 2662-4435 (2021) [Refereed Article]
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Copyright Statement
© 2021. The Authors. This article is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) License, (https://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
DOI: doi:10.1038/s43247-021-00295-4
Abstract
While Pacific climate variability is largely understood based on El Niño-Southern Oscillation
(ENSO), the North Pacific focused Pacific decadal oscillation and the basin-wide interdecadal
Pacific oscillation, the role of the South Pacific, including atmospheric drivers and cross-scale
interactions, has received less attention. Using reanalysis data and model outputs, here we
propose a paradigm for South Pacific climate variability whereby the atmospheric Pacific-
South American (PSA) mode acts to excite multiscale spatiotemporal responses in the upper
South Pacific Ocean. We find the second mid-troposphere PSA pattern is fundamental to
stochastically generate a mid-latitude sea surface temperature quadrupole pattern that
represents the optimal precursor for the predictability and evolution of both the South Pacific
decadal oscillation and ENSO several seasons in advance. We find that the PSA mode is the
key driver of oceanic variability in the South Pacific subtropics that generates a potentially
predictable climate signal linked to the tropics.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | atmosphere, Pacific-South American mode, oceanic variability, predictability, ENSO |
| Research Division: | Earth Sciences |
| Research Group: | Oceanography |
| Research Field: | Physical oceanography |
| Objective Division: | Environmental Policy, Climate Change and Natural Hazards |
| Objective Group: | Understanding climate change |
| Objective Field: | Understanding climate change not elsewhere classified |
| UTAS Author: | Lou, J (Mr Jiale LOU) |
| UTAS Author: | Holbrook, NJ (Professor Neil Holbrook) |
| ID Code: | 149935 |
| Year Published: | 2021 |
| Web of Science® Times Cited: | 4 |
| Deposited By: | Oceans and Cryosphere |
| Deposited On: | 2022-04-29 |
| Last Modified: | 2022-08-24 |
| Downloads: | 6 View Download Statistics |
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