Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene

Simon Schüpbach; Hubertus Fischer; Matthias Bigler; Tobias Erhardt; Gideon Gfeller; Daiana Leuenberger; Olivia Mini; Robert Mulvaney; Nerilie Abram; L. Fleet; Markus Michael Frey; Elizabeth Thomas; Anders Svensson; Dorthe Dahl-Jensen; Ernesto Kettner; Helle Astrid Kjaer; Inger Seierstad; Jørgen Peder Steffensen; Sune Olander Rasmussen; Paul Vallelonga; Mai Winstrup; Anna Wegner; Birthe Twarloh; K. Wolff; K. Schmidt; Kumiko Goto-Azuma; Takayuki Kuramoto; Motohiro Hirabayashi; Jun Uetake; Jiancheng Zheng; Jocelyne Bourgeois; David Fisher; D. Zhiheng; Cunde Xiao; Michel Legrand; Andrea Spolaor; Jacopo Gabrieli; Carlo Barbante; Jung-Ho Kang; Soon Do Hur; S.B. Hong; Heejin Hwang; Sangbum Hong; Margareta Hansson; Yoshinori Iizuka; Ikumi Oyabu; Raimund Muscheler; Florian Adolphi; Olivia Maselli; Joseph Mcconnell; Eric Wolff

doi:10.1038/s41467-018-03924-3

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Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene

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Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene

Simon Schüpbach, Hubertus Fischer, Matthias Bigler, Tobias Erhardt, Gideon Gfeller, Daiana Leuenberger, Olivia Mini, Robert Mulvaney, Nerilie Abram, L. Fleet, …

Nature Communications, Vol.9(1)

16/04/2018

DOI: https://doi.org/10.1038/s41467-018-03924-3

Abstract

Abstract The Northern Hemisphere experienced dramatic changes during the last glacial, featuring vast ice sheets and abrupt climate events, while high northern latitudes during the last interglacial (Eemian) were warmer than today. Here we use high-resolution aerosol records from the Greenland NEEM ice core to reconstruct the environmental alterations in aerosol source regions accompanying these changes. Separating source and transport effects, we find strongly reduced terrestrial biogenic emissions during glacial times reflecting net loss of vegetated area in North America. Rapid climate changes during the glacial have little effect on terrestrial biogenic aerosol emissions. A strong increase in terrestrial dust emissions during the coldest intervals indicates higher aridity and dust storm activity in East Asian deserts. Glacial sea salt aerosol emissions in the North Atlantic region increase only moderately (50%), likely due to sea ice expansion. Lower aerosol concentrations in Eemian ice compared to the Holocene are mainly due to shortened atmospheric residence time, while emissions changed little.

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Title: Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene
Creators - without role: Simon Schüpbach - Oeschger Centre for Climate Change Research
Hubertus Fischer - University of Bern
Matthias Bigler - Oeschger Centre for Climate Change Research
Tobias Erhardt - Oeschger Centre for Climate Change Research
Gideon Gfeller - Oeschger Centre for Climate Change Research
Daiana Leuenberger - Oeschger Centre for Climate Change Research
Olivia Mini - Oeschger Centre for Climate Change Research
Robert Mulvaney - British Antarctic Survey
Nerilie Abram - British Antarctic Survey
L. Fleet - British Antarctic Survey
Markus Michael Frey - British Antarctic Survey
Elizabeth Thomas - British Antarctic Survey
Anders Svensson - University of Copenhagen
Dorthe Dahl-Jensen - University of Copenhagen
Ernesto Kettner - University of Copenhagen
Helle Astrid Kjaer - University of Copenhagen
Inger Seierstad - University of Copenhagen
Jørgen Peder Steffensen - University of Copenhagen
Sune Olander Rasmussen - University of Copenhagen
Paul Vallelonga - University of Copenhagen
Mai Winstrup - University of Copenhagen
Anna Wegner - Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
Birthe Twarloh - Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
K. Wolff - Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
K. Schmidt
Kumiko Goto-Azuma - National Institute of Polar Research
Takayuki Kuramoto - National Institute of Polar Research
Motohiro Hirabayashi - National Institute of Polar Research
Jun Uetake - National Institute of Polar Research
Jiancheng Zheng - Department of Physics [Baltimore]
Jocelyne Bourgeois - CODRA
David Fisher - Université de Montpellier, Institut de Génétique Moléculaire de Montpellier - IGMM
D. Zhiheng - Chinese Academy of Sciences
Cunde Xiao - Chinese Academy of Sciences
Michel Legrand - Institut des Géosciences de l'Environnement
Andrea Spolaor - Institute for the Dynamics of Environmental Processes
Jacopo Gabrieli - Institute for the Dynamics of Environmental Processes
Carlo Barbante - Institute for the Dynamics of Environmental Processes
Jung-Ho Kang - Department of Physics
Soon Do Hur - Korea Polar Research Institute
S.B. Hong - Korea Polar Research Institute
Heejin Hwang - Korea Polar Research Institute
Sangbum Hong - Massachusetts General Hospital
Margareta Hansson - Stockholm University
Yoshinori Iizuka - Stockholm University
Ikumi Oyabu - Stockholm University
Raimund Muscheler - Lund University
Florian Adolphi - Lund University
Olivia Maselli - Nevada System of Higher Education
Joseph Mcconnell - Nevada System of Higher Education
Eric Wolff - University of Cambridge
Publication Details: Nature Communications, Vol.9(1)
Identifiers: 9940634009311
Academic Unit: Institut de Génétique Moléculaire de Montpellier - IGMM
Language: English
Resource Type: Journal article
Local Fields: hal-04858790