Volcanic influence on centennial to millennial Holocene Greenland temperature change

Abstract Solar variability has been hypothesized to be a major driver of North Atlantic millennial-scale climate variations through the Holocene along with orbitally induced insolation change. However, another important climate driver, volcanic forcing has generally been underestimated prior to the...

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Autores principales:	Takuro Kobashi, Laurie Menviel, Aurich Jeltsch-Thömmes, Bo M. Vinther, Jason E. Box, Raimund Muscheler, Toshiyuki Nakaegawa, Patrik L. Pfister, Michael Döring, Markus Leuenberger, Heinz Wanner, Atsumu Ohmura
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/52cbc67321eb436fb717441092e04d36
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spelling	oai:doaj.org-article:52cbc67321eb436fb717441092e04d362021-12-02T15:05:18ZVolcanic influence on centennial to millennial Holocene Greenland temperature change10.1038/s41598-017-01451-72045-2322https://doaj.org/article/52cbc67321eb436fb717441092e04d362017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01451-7https://doaj.org/toc/2045-2322Abstract Solar variability has been hypothesized to be a major driver of North Atlantic millennial-scale climate variations through the Holocene along with orbitally induced insolation change. However, another important climate driver, volcanic forcing has generally been underestimated prior to the past 2,500 years partly owing to the lack of proper proxy temperature records. Here, we reconstruct seasonally unbiased and physically constrained Greenland Summit temperatures over the Holocene using argon and nitrogen isotopes within trapped air in a Greenland ice core (GISP2). We show that a series of volcanic eruptions through the Holocene played an important role in driving centennial to millennial-scale temperature changes in Greenland. The reconstructed Greenland temperature exhibits significant millennial correlations with K+ and Na+ ions in the GISP2 ice core (proxies for atmospheric circulation patterns), and δ18O of Oman and Chinese Dongge cave stalagmites (proxies for monsoon activity), indicating that the reconstructed temperature contains hemispheric signals. Climate model simulations forced with the volcanic forcing further suggest that a series of large volcanic eruptions induced hemispheric-wide centennial to millennial-scale variability through ocean/sea-ice feedbacks. Therefore, we conclude that volcanic activity played a critical role in driving centennial to millennial-scale Holocene temperature variability in Greenland and likely beyond.Takuro KobashiLaurie MenvielAurich Jeltsch-ThömmesBo M. VintherJason E. BoxRaimund MuschelerToshiyuki NakaegawaPatrik L. PfisterMichael DöringMarkus LeuenbergerHeinz WannerAtsumu OhmuraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Takuro Kobashi Laurie Menviel Aurich Jeltsch-Thömmes Bo M. Vinther Jason E. Box Raimund Muscheler Toshiyuki Nakaegawa Patrik L. Pfister Michael Döring Markus Leuenberger Heinz Wanner Atsumu Ohmura Volcanic influence on centennial to millennial Holocene Greenland temperature change
description	Abstract Solar variability has been hypothesized to be a major driver of North Atlantic millennial-scale climate variations through the Holocene along with orbitally induced insolation change. However, another important climate driver, volcanic forcing has generally been underestimated prior to the past 2,500 years partly owing to the lack of proper proxy temperature records. Here, we reconstruct seasonally unbiased and physically constrained Greenland Summit temperatures over the Holocene using argon and nitrogen isotopes within trapped air in a Greenland ice core (GISP2). We show that a series of volcanic eruptions through the Holocene played an important role in driving centennial to millennial-scale temperature changes in Greenland. The reconstructed Greenland temperature exhibits significant millennial correlations with K+ and Na+ ions in the GISP2 ice core (proxies for atmospheric circulation patterns), and δ18O of Oman and Chinese Dongge cave stalagmites (proxies for monsoon activity), indicating that the reconstructed temperature contains hemispheric signals. Climate model simulations forced with the volcanic forcing further suggest that a series of large volcanic eruptions induced hemispheric-wide centennial to millennial-scale variability through ocean/sea-ice feedbacks. Therefore, we conclude that volcanic activity played a critical role in driving centennial to millennial-scale Holocene temperature variability in Greenland and likely beyond.
format	article
author	Takuro Kobashi Laurie Menviel Aurich Jeltsch-Thömmes Bo M. Vinther Jason E. Box Raimund Muscheler Toshiyuki Nakaegawa Patrik L. Pfister Michael Döring Markus Leuenberger Heinz Wanner Atsumu Ohmura
author_facet	Takuro Kobashi Laurie Menviel Aurich Jeltsch-Thömmes Bo M. Vinther Jason E. Box Raimund Muscheler Toshiyuki Nakaegawa Patrik L. Pfister Michael Döring Markus Leuenberger Heinz Wanner Atsumu Ohmura
author_sort	Takuro Kobashi
title	Volcanic influence on centennial to millennial Holocene Greenland temperature change
title_short	Volcanic influence on centennial to millennial Holocene Greenland temperature change
title_full	Volcanic influence on centennial to millennial Holocene Greenland temperature change
title_fullStr	Volcanic influence on centennial to millennial Holocene Greenland temperature change
title_full_unstemmed	Volcanic influence on centennial to millennial Holocene Greenland temperature change
title_sort	volcanic influence on centennial to millennial holocene greenland temperature change
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/52cbc67321eb436fb717441092e04d36
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_version_	1718388890165837824

Volcanic influence on centennial to millennial Holocene Greenland temperature change

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