Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene
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...
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ftdatacite:10.7892/boris.116221 2023-05-15T16:27:25+02:00 Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene Schüpbach, Simon Fischer, Hubertus Bigler, M. Erhardt, Tobias Gfeller, Gideon Leuenberger, Daiana Mini, Olivia Mulvaney, R. Abram, N. J. Fleet, L. Frey, M. M. Thomas, E. Svensson, A. Dahl-Jensen, D. Kettner, E. Kjaer, H. Seierstad, I. Steffensen, J. P. Rasmussen, S. O. Vallelonga, P. Winstrup, M. Wegner, A. Twarloh, B. Wolff, K. Schmidt, K. Goto-Azuma, K. Kuramoto, T. Hirabayashi, M. Uetake, J. Zheng, J. Bourgeois, J. Fisher, D. Zhiheng, D. Xiao, C. Legrand, M. Spolaor, A. Gabrieli, J. Barbante, C. Kang, J.-H. Hur, S. D. Hong, S. B. Hwang, H. J. Hong, S. Hansson, M. Iizuka, Y. Oyabu, I. Muscheler, R. Adolphi, Florian Maselli, O. McConnell, J. Wolff, E. W. 2018 application/pdf https://dx.doi.org/10.7892/boris.116221 https://boris.unibe.ch/116221/ en eng Nature Publishing Group info:eu-repo/semantics/openAccess 530 Physics Text article-journal ScholarlyArticle 2018 ftdatacite https://doi.org/10.7892/boris.116221 2021-11-05T12:55:41Z 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. Text Greenland ice core North Atlantic Sea ice DataCite Metadata Store (German National Library of Science and Technology) Greenland |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Schüpbach, Simon Fischer, Hubertus Bigler, M. Erhardt, Tobias Gfeller, Gideon Leuenberger, Daiana Mini, Olivia Mulvaney, R. Abram, N. J. Fleet, L. Frey, M. M. Thomas, E. Svensson, A. Dahl-Jensen, D. Kettner, E. Kjaer, H. Seierstad, I. Steffensen, J. P. Rasmussen, S. O. Vallelonga, P. Winstrup, M. Wegner, A. Twarloh, B. Wolff, K. Schmidt, K. Goto-Azuma, K. Kuramoto, T. Hirabayashi, M. Uetake, J. Zheng, J. Bourgeois, J. Fisher, D. Zhiheng, D. Xiao, C. Legrand, M. Spolaor, A. Gabrieli, J. Barbante, C. Kang, J.-H. Hur, S. D. Hong, S. B. Hwang, H. J. Hong, S. Hansson, M. Iizuka, Y. Oyabu, I. Muscheler, R. Adolphi, Florian Maselli, O. McConnell, J. Wolff, E. W. Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene |
topic_facet |
530 Physics |
description |
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. |
format |
Text |
author |
Schüpbach, Simon Fischer, Hubertus Bigler, M. Erhardt, Tobias Gfeller, Gideon Leuenberger, Daiana Mini, Olivia Mulvaney, R. Abram, N. J. Fleet, L. Frey, M. M. Thomas, E. Svensson, A. Dahl-Jensen, D. Kettner, E. Kjaer, H. Seierstad, I. Steffensen, J. P. Rasmussen, S. O. Vallelonga, P. Winstrup, M. Wegner, A. Twarloh, B. Wolff, K. Schmidt, K. Goto-Azuma, K. Kuramoto, T. Hirabayashi, M. Uetake, J. Zheng, J. Bourgeois, J. Fisher, D. Zhiheng, D. Xiao, C. Legrand, M. Spolaor, A. Gabrieli, J. Barbante, C. Kang, J.-H. Hur, S. D. Hong, S. B. Hwang, H. J. Hong, S. Hansson, M. Iizuka, Y. Oyabu, I. Muscheler, R. Adolphi, Florian Maselli, O. McConnell, J. Wolff, E. W. |
author_facet |
Schüpbach, Simon Fischer, Hubertus Bigler, M. Erhardt, Tobias Gfeller, Gideon Leuenberger, Daiana Mini, Olivia Mulvaney, R. Abram, N. J. Fleet, L. Frey, M. M. Thomas, E. Svensson, A. Dahl-Jensen, D. Kettner, E. Kjaer, H. Seierstad, I. Steffensen, J. P. Rasmussen, S. O. Vallelonga, P. Winstrup, M. Wegner, A. Twarloh, B. Wolff, K. Schmidt, K. Goto-Azuma, K. Kuramoto, T. Hirabayashi, M. Uetake, J. Zheng, J. Bourgeois, J. Fisher, D. Zhiheng, D. Xiao, C. Legrand, M. Spolaor, A. Gabrieli, J. Barbante, C. Kang, J.-H. Hur, S. D. Hong, S. B. Hwang, H. J. Hong, S. Hansson, M. Iizuka, Y. Oyabu, I. Muscheler, R. Adolphi, Florian Maselli, O. McConnell, J. Wolff, E. W. |
author_sort |
Schüpbach, Simon |
title |
Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene |
title_short |
Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene |
title_full |
Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene |
title_fullStr |
Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene |
title_full_unstemmed |
Greenland records of aerosol source and atmospheric lifetime changes from the Eemian to the Holocene |
title_sort |
greenland records of aerosol source and atmospheric lifetime changes from the eemian to the holocene |
publisher |
Nature Publishing Group |
publishDate |
2018 |
url |
https://dx.doi.org/10.7892/boris.116221 https://boris.unibe.ch/116221/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core North Atlantic Sea ice |
genre_facet |
Greenland ice core North Atlantic Sea ice |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.7892/boris.116221 |
_version_ |
1766016592020242432 |