Strong constraints on aerosol-cloud interactions from volcanic eruptions
International audience Aerosols have a potentially large effect on climate, particularly through their interactions with clouds, but the magnitude of this effect is highly uncertain. Large volcanic eruptions produce sulfur dioxide, which in turn produces aerosols; these eruptions thus represent a na...
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Online Access: | https://insu.hal.science/insu-03727061 https://doi.org/10.1038/nature22974 |
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ftccsdartic:oai:HAL:insu-03727061v1 2023-08-20T04:07:27+02:00 Strong constraints on aerosol-cloud interactions from volcanic eruptions Malavelle, Florent F. Haywood, Jim M. Jones, Andy Gettelman, Andrew Clarisse, Lieven Bauduin, Sophie Allan, Richard P. Karset, Inger Helene H. Oreopoulos, Lazaros Cho, Nayeong Lee, Dongmin Bellouin, Nicolas Boucher, Olivier Grosvenor, Daniel P. Carslaw, Ken S. Dhomse, Sandip Mann, Graham W. Schmidt, Anja Coe, Hugh Hartley, Margaret E. Dalvi, Mohit Hill, Adrian A. Johnson, Ben T. Johnson, Colin E. Knight, Jeff R. O'Connor, Fiona M. Partridge, Daniel G. Stier, Philip Myhre, Gunnar Platnick, Steven Stephens, Graeme L. Takahashi, Hanii Thordarson, Thorvaldur Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) 2017 https://insu.hal.science/insu-03727061 https://doi.org/10.1038/nature22974 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/nature22974 insu-03727061 https://insu.hal.science/insu-03727061 BIBCODE: 2017Natur.546.485M doi:10.1038/nature22974 ISSN: 0028-0836 EISSN: 1476-4687 Nature https://insu.hal.science/insu-03727061 Nature, 2017, 546, pp.485-491. ⟨10.1038/nature22974⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.1038/nature22974 2023-07-29T22:51:51Z International audience Aerosols have a potentially large effect on climate, particularly through their interactions with clouds, but the magnitude of this effect is highly uncertain. Large volcanic eruptions produce sulfur dioxide, which in turn produces aerosols; these eruptions thus represent a natural experiment through which to quantify aerosol-cloud interactions. Here we show that the massive 2014-2015 fissure eruption in Holuhraun, Iceland, reduced the size of liquid cloud droplets—consistent with expectations—but had no discernible effect on other cloud properties. The reduction in droplet size led to cloud brightening and global-mean radiative forcing of around -0.2 watts per square metre for September to October 2014. Changes in cloud amount or cloud liquid water path, however, were undetectable, indicating that these indirect effects, and cloud systems in general, are well buffered against aerosol changes. This result will reduce uncertainties in future climate projections, because we are now able to reject results from climate models with an excessive liquid-water-path response. Article in Journal/Newspaper Iceland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) Nature 546 7659 485 491 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Malavelle, Florent F. Haywood, Jim M. Jones, Andy Gettelman, Andrew Clarisse, Lieven Bauduin, Sophie Allan, Richard P. Karset, Inger Helene H. Oreopoulos, Lazaros Cho, Nayeong Lee, Dongmin Bellouin, Nicolas Boucher, Olivier Grosvenor, Daniel P. Carslaw, Ken S. Dhomse, Sandip Mann, Graham W. Schmidt, Anja Coe, Hugh Hartley, Margaret E. Dalvi, Mohit Hill, Adrian A. Johnson, Ben T. Johnson, Colin E. Knight, Jeff R. O'Connor, Fiona M. Partridge, Daniel G. Stier, Philip Myhre, Gunnar Platnick, Steven Stephens, Graeme L. Takahashi, Hanii Thordarson, Thorvaldur Strong constraints on aerosol-cloud interactions from volcanic eruptions |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Aerosols have a potentially large effect on climate, particularly through their interactions with clouds, but the magnitude of this effect is highly uncertain. Large volcanic eruptions produce sulfur dioxide, which in turn produces aerosols; these eruptions thus represent a natural experiment through which to quantify aerosol-cloud interactions. Here we show that the massive 2014-2015 fissure eruption in Holuhraun, Iceland, reduced the size of liquid cloud droplets—consistent with expectations—but had no discernible effect on other cloud properties. The reduction in droplet size led to cloud brightening and global-mean radiative forcing of around -0.2 watts per square metre for September to October 2014. Changes in cloud amount or cloud liquid water path, however, were undetectable, indicating that these indirect effects, and cloud systems in general, are well buffered against aerosol changes. This result will reduce uncertainties in future climate projections, because we are now able to reject results from climate models with an excessive liquid-water-path response. |
author2 |
Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Malavelle, Florent F. Haywood, Jim M. Jones, Andy Gettelman, Andrew Clarisse, Lieven Bauduin, Sophie Allan, Richard P. Karset, Inger Helene H. Oreopoulos, Lazaros Cho, Nayeong Lee, Dongmin Bellouin, Nicolas Boucher, Olivier Grosvenor, Daniel P. Carslaw, Ken S. Dhomse, Sandip Mann, Graham W. Schmidt, Anja Coe, Hugh Hartley, Margaret E. Dalvi, Mohit Hill, Adrian A. Johnson, Ben T. Johnson, Colin E. Knight, Jeff R. O'Connor, Fiona M. Partridge, Daniel G. Stier, Philip Myhre, Gunnar Platnick, Steven Stephens, Graeme L. Takahashi, Hanii Thordarson, Thorvaldur |
author_facet |
Malavelle, Florent F. Haywood, Jim M. Jones, Andy Gettelman, Andrew Clarisse, Lieven Bauduin, Sophie Allan, Richard P. Karset, Inger Helene H. Oreopoulos, Lazaros Cho, Nayeong Lee, Dongmin Bellouin, Nicolas Boucher, Olivier Grosvenor, Daniel P. Carslaw, Ken S. Dhomse, Sandip Mann, Graham W. Schmidt, Anja Coe, Hugh Hartley, Margaret E. Dalvi, Mohit Hill, Adrian A. Johnson, Ben T. Johnson, Colin E. Knight, Jeff R. O'Connor, Fiona M. Partridge, Daniel G. Stier, Philip Myhre, Gunnar Platnick, Steven Stephens, Graeme L. Takahashi, Hanii Thordarson, Thorvaldur |
author_sort |
Malavelle, Florent F. |
title |
Strong constraints on aerosol-cloud interactions from volcanic eruptions |
title_short |
Strong constraints on aerosol-cloud interactions from volcanic eruptions |
title_full |
Strong constraints on aerosol-cloud interactions from volcanic eruptions |
title_fullStr |
Strong constraints on aerosol-cloud interactions from volcanic eruptions |
title_full_unstemmed |
Strong constraints on aerosol-cloud interactions from volcanic eruptions |
title_sort |
strong constraints on aerosol-cloud interactions from volcanic eruptions |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://insu.hal.science/insu-03727061 https://doi.org/10.1038/nature22974 |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) |
geographic |
Holuhraun |
geographic_facet |
Holuhraun |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
ISSN: 0028-0836 EISSN: 1476-4687 Nature https://insu.hal.science/insu-03727061 Nature, 2017, 546, pp.485-491. ⟨10.1038/nature22974⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/nature22974 insu-03727061 https://insu.hal.science/insu-03727061 BIBCODE: 2017Natur.546.485M doi:10.1038/nature22974 |
op_doi |
https://doi.org/10.1038/nature22974 |
container_title |
Nature |
container_volume |
546 |
container_issue |
7659 |
container_start_page |
485 |
op_container_end_page |
491 |
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1774719085375913984 |