Variations in the amplitude of El Niño–Southern Oscillation in the past 250 million years Article Swipe
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· 2023
· Open Access
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· DOI: https://doi.org/10.5194/egusphere-egu23-4227
The El Niño–Southern Oscillation (ENSO), originating in the central and eastern equatorial Pacific, is a defining mode of interannual climate variability with profound impact on global climate and ecosystems. Although ongoing coordinated community efforts have offered insights into how ENSO will change in the future under anthropogenic warming, the geological history of ENSO remains intricate. In particular, there is a clear lack of systematic study on how ENSO has evolved in response to vast variations in land-sea distributions and climate mean states over geological timescales. To unravel this, we analyze a series of time-slice coupled climate simulations forced by changes of paleogeography, atmospheric CO2 concentrations, and solar radiation in the past 250 million years (Myr). Our simulations for the first time demonstrate that ENSO is the leading mode of tropical Pacific sea surface temperature (SST) in the past 250 Myr. Further, the amplitude of ENSO is predominantly captured by the zonal advective feedback and thermocline feedback, both of which are primarily regulated by eastern equatorial Pacific climatological SST. These findings highlight the significance of climate mean states in interpretation of the amplitude of ENSO during the deep past, and provide enlightening implications for constraining future climate change.
Related Topics
- Type
- preprint
- Language
- en
- Landing Page
- https://doi.org/10.5194/egusphere-egu23-4227
- OA Status
- gold
- Related Works
- 10
- OpenAlex ID
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4321501875Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.5194/egusphere-egu23-4227Digital Object Identifier
- Title
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Variations in the amplitude of El Niño–Southern Oscillation in the past 250 million yearsWork title
- Type
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preprintOpenAlex work type
- Language
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enPrimary language
- Publication year
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2023Year of publication
- Publication date
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2023-02-22Full publication date if available
- Authors
-
Xiang Li, Shineng Hu, Yongyun Hu, Jiaqi Guo, Jiawenjing Lan, Qifan Lin, Shuai YuanList of authors in order
- Landing page
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https://doi.org/10.5194/egusphere-egu23-4227Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://doi.org/10.5194/egusphere-egu23-4227Direct OA link when available
- Concepts
-
Climatology, Thermocline, Climate change, El Niño Southern Oscillation, Multivariate ENSO index, Pacific decadal oscillation, Climate model, Sea surface temperature, Climate state, Geology, Mode (computer interface), Environmental science, La Niña, Global warming, Oceanography, Effects of global warming, Computer science, Operating systemTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.temperature | 133 |
| abstract_inverted_index.thermocline | 154 |
| abstract_inverted_index.timescales. | 84 |
| abstract_inverted_index.variability | 20 |
| abstract_inverted_index.constraining | 193 |
| abstract_inverted_index.enlightening | 190 |
| abstract_inverted_index.implications | 191 |
| abstract_inverted_index.significance | 172 |
| abstract_inverted_index.anthropogenic | 46 |
| abstract_inverted_index.distributions | 77 |
| abstract_inverted_index.predominantly | 146 |
| abstract_inverted_index.climatological | 166 |
| abstract_inverted_index.interpretation | 178 |
| abstract_inverted_index.concentrations, | 104 |
| abstract_inverted_index.paleogeography, | 101 |
| abstract_inverted_index.Niño–Southern | 2 |
| cited_by_percentile_year | |
| countries_distinct_count | 0 |
| institutions_distinct_count | 7 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/14 |
| sustainable_development_goals[0].score | 0.46000000834465027 |
| sustainable_development_goals[0].display_name | Life below water |
| sustainable_development_goals[1].id | https://metadata.un.org/sdg/13 |
| sustainable_development_goals[1].score | 0.41999998688697815 |
| sustainable_development_goals[1].display_name | Climate action |
| citation_normalized_percentile.value | 0.03701408 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |