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Title:Experimental evidence of long-term oceanic circulation reversals without wind influence in the North Ionian Sea
Authors:ID Rubino, Angelo (Author)
ID Gačić, Miroslav (Author)
ID Bensi, Manuel (Author)
ID Kovacevic, Vedrana (Author)
ID Malačič, Vlado (Author)
ID Menna, Milena (Author)
ID Negretti, Maria Eletta (Author)
ID Sommeria, Joel (Author)
ID Zanchettin, Davide (Author)
ID Barreto, Ricardo V. (Author)
ID Ursella, Laura (Author)
ID Cardin, Vanessa (Author)
ID Civitarese, Giuseppe (Author)
ID Orlić, Mirko (Author)
ID Petelin, Boris (Author)
ID Siena, Giuseppe (Author)
Files:URL URL - Source URL, visit https://www.nature.com/articles/s41598-020-57862-6
 
.pdf PDF - Presentation file, download (1,81 MB)
MD5: BC6DF513027A4605F26C1726DD647904
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo NIB - National Institute of Biology
Abstract:Under the emerging features of interannual-to-decadal ocean variability, the periodical reversals of the North Ionian Gyre (NIG), driven mostly by the mechanism named Adriatic-Ionian Bimodal Oscillating System (BiOS), are known as impacting on marine physics and biogeochemistry and potentially influencing short-term regional climate predictability in the Eastern Mediterranean. Whilst it has been suggested that local wind forcing cannot explain such variability, aspects of the alternative hypothesis indicating that NIG reversals mainly arises from an internal ocean feedback mechanism alone remain largely debated. Here we demonstrate, using the results of physical experiments, performed in the world’s largest rotating tank and numerical simulations, that the main observed feature of BiOS, i.e., the switch of polarity of the near-surface circulation in the NIG, can be induced by a mere injection of dense water on a sloping bottom. Hence, BiOS is a truly oceanic mode of variability and abrupt polarity changes in circulation can arise solely from extreme dense water formation events.
Keywords:physical oceanography, climate and Earth system modelling
Publication status:Published
Publication version:Version of Record
Publication date:05.02.2020
Year of publishing:2020
Number of pages:str. 1-9
Numbering:Vol. 10
PID:20.500.12556/DiRROS-19505 New window
UDC:574.5
ISSN on article:2045-2322
DOI:10.1038/s41598-020-57862-6 New window
COBISS.SI-ID:5309519 New window
Note:Nasl. z nasl. zaslona; Opis vira z dne 6. 2. 2020;
Publication date in DiRROS:19.07.2024
Views:462
Downloads:295
Metadata:XML DC-XML DC-RDF
:
RUBINO, Angelo, GAČIĆ, Miroslav, BENSI, Manuel, KOVACEVIC, Vedrana, MALAČIČ, Vlado, MENNA, Milena, NEGRETTI, Maria Eletta, SOMMERIA, Joel, ZANCHETTIN, Davide, BARRETO, Ricardo V., URSELLA, Laura, CARDIN, Vanessa, CIVITARESE, Giuseppe, ORLIĆ, Mirko, PETELIN, Boris and SIENA, Giuseppe, 2020, Experimental evidence of long-term oceanic circulation reversals without wind influence in the North Ionian Sea. Scientific reports [online]. 2020. Vol. 10, p. 1–9. [Accessed 7 April 2025]. DOI 10.1038/s41598-020-57862-6. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=19505
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Record is a part of a journal

Title:Scientific reports
Shortened title:Sci. rep.
Publisher:Nature Publishing Group
ISSN:2045-2322
COBISS.SI-ID:18727432 New window

Document is financed by a project

Funder:EC - European Commission
Project number:654110
Name:HYDRALAB+ Adapting to climate change
Acronym:HYDRALAB-PLUS

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

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