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How Do Tropical, No...
How Do Tropical, Northern Hemispheric, and Southern Hemispheric Volcanic Eruptions Affect ENSO Under Different Initial Ocean Conditions?
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Liu, Fei (författare)
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Xing, Chen (författare)
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Sun, Liying (författare)
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Wang, Bin (författare)
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- Chen, Deliang, 1961 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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Liu, Jian (författare)
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(creator_code:org_t)
- 2018
- 2018
- Engelska.
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Ingår i: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 45:23, s. 13041-13049
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- ©2018. American Geophysical Union. All Rights Reserved. Current understanding of volcanic effects on El Niño–Southern Oscillation in terms of eruption type and initial ocean condition (IOC) remains elusive. We use last-millennium proxy reconstructions to show how volcanic impacts depend on eruption type and IOC. When the IOC is not a strong El Niño, it is likely that an El Niño will mature in the second winter following 79% (p<0.01) of Northern Hemispheric eruptions and in the first winter following 81% (p<0.01) of tropical and 69% of Southern Hemispheric eruptions. For a strong El Niño-IOC, no significant El Niño will occur in the first winter after any type of eruption. The eruptions need to be large enough to cause these diverse effects. Our last-millennium simulation confirms the IOC effect, except that a La Niña occurs in the first winter following most tropical eruptions due to overestimated volcanic cooling in the model.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- ENSO
- ENSO reconstruction
- initial ocean condition
- millennium simulation
- volcanic cooling
- volcano type
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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