Lunar eclipses illuminate timing and climate impact of medieval volcanism.

Guillet, Sébastien; Corona, Christophe; Oppenheimer, Clive; Lavigne, Franck; Khodri, Myriam; Ludlow, Francis; Sigl, Michael; Toohey, Matthew; Atkins, Paul S; Yang, Zhen; Muranaka, Tomoko; Horikawa, Nobuko; Stoffel, Markus

Guillet, Sébastien; Corona, Christophe; Oppenheimer, Clive; Lavigne, Franck; Khodri, Myriam; Ludlow, Francis; Sigl, Michael; Toohey, Matthew; Atkins, Paul S; Yang, Zhen; Muranaka, Tomoko; Horikawa, Nobuko; Stoffel, Markus.

Afiliación

Guillet S; Climate Change Impacts and Risks in the Anthropocene (C-CIA), Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland. sebastien.guillet@unige.ch.
Corona C; Climate Change Impacts and Risks in the Anthropocene (C-CIA), Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland.
Oppenheimer C; GEOLAB, Université Clermont Auvergne, CNRS, Clermont-Ferrand, France.
Lavigne F; Department of Geography, University of Cambridge, Cambridge, UK.
Khodri M; Laboratoire de Géographie Physique, Université Paris 1 Panthéon-Sorbonne, Thiais, France.
Ludlow F; Laboratoire d'Océanographie et du Climat: Expérimentations et Approches Numériques, IPSL, Sorbonne Université/IRD/CNRS/MNHN, Paris, France.
Sigl M; Trinity Centre for Environmental Humanities, Department of History, School of Histories & Humanities, Trinity College Dublin, Dublin, Ireland.
Toohey M; Climate and Environmental Physics, University of Bern, Bern, Switzerland.
Atkins PS; Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland.
Yang Z; Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Muranaka T; Department of Asian Languages & Literature, University of Washington, Seattle, WA, USA.
Horikawa N; Trinity Centre for Environmental Humanities, Department of History, School of Histories & Humanities, Trinity College Dublin, Dublin, Ireland.
Stoffel M; Climate Change Impacts and Risks in the Anthropocene (C-CIA), Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland.

Nature ; 616(7955): 90-95, 2023 04.

Article en En | MEDLINE | ID: mdl-37020006

RESUMEN

Explosive volcanism is a key contributor to climate variability on interannual to centennial timescales1. Understanding the far-field societal impacts of eruption-forced climatic changes requires firm event chronologies and reliable estimates of both the burden and altitude (that is, tropospheric versus stratospheric) of volcanic sulfate aerosol2,3. However, despite progress in ice-core dating, uncertainties remain in these key factors4. This particularly hinders investigation of the role of large, temporally clustered eruptions during the High Medieval Period (HMP, 1100-1300 CE), which have been implicated in the transition from the warm Medieval Climate Anomaly to the Little Ice Age5. Here we shed new light on explosive volcanism during the HMP, drawing on analysis of contemporary reports of total lunar eclipses, from which we derive a time series of stratospheric turbidity. By combining this new record with aerosol model simulations and tree-ring-based climate proxies, we refine the estimated dates of five notable eruptions and associate each with stratospheric aerosol veils. Five further eruptions, including one responsible for high sulfur deposition over Greenland circa 1182 CE, affected only the troposphere and had muted climatic consequences. Our findings offer support for further investigation of the decadal-scale to centennial-scale climate response to volcanic eruptions.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Nature Año: 2023 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Reino Unido

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