| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
An Indo-Pacific see-saw wobbles the Earth at intraseasonal timescales
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| Data: |
2020-10
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| Ano: |
2020
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| Palavras-chave: |
Barotropic Response
Madden-Julian Oscillation
Ocean General Circulation Model
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| Resumo: |
Strong large-scale winds can relay their energy to the ocean bottom and elicit an almost immediate intraseasonal barotropic (depth independent) response in the ocean. The intense winds associated with the Madden-Julian Oscillation (MJO), over the tropical interface between the Indian Ocean and the Pacific Ocean (popularly known as Maritime Continent) generate significant basin-wide intraseasonal barotropic sea level variability in the tropical Indian Ocean. Here we show, using an ocean general circulation model and a network of in-situ bottom pressure recorders, that the concerted barotropic response of the Indian and the Pacific Ocean to these winds leads to an intraseasonal see-saw of oceanic mass in the Indo-Pacific basin. This global-scale mass shift is unexpectedly fast, as we show that the mass field of the entire Indo-Pacific basin is dynamically adjusted to MJO in a few days. We also explain how this near-global-scale MJO-induced oceanic phenomenon is the first signature from a climate mode that can be isolated into the Earth polar axis motion, in particular during the strong see-saw of early 2013.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00656/76846/78028.pdf
https://archimer.ifremer.fr/doc/00656/76846/78029.docx
DOI:10.21203/rs.3.rs-88417/v1
https://archimer.ifremer.fr/doc/00656/76846/
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| Editor: |
Research Square
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| Formato: |
application/pdf
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| Fonte: |
Preprint (Research Square) In Press
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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