Strong constraints on aerosol-cloud interactions from volcanic eruptions.
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 throug...
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Online Access: | https://www.repository.cam.ac.uk/handle/1810/296667 https://doi.org/10.17863/CAM.43715 |
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ftunivcam:oai:www.repository.cam.ac.uk:1810/296667 2024-02-04T10:01:30+01:00 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 Kristjánsson, Jón Egill 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 2017-06-22 application/pdf https://www.repository.cam.ac.uk/handle/1810/296667 https://doi.org/10.17863/CAM.43715 eng eng Springer Science and Business Media LLC http://dx.doi.org/10.1038/nature22974 Nature https://www.repository.cam.ac.uk/handle/1810/296667 doi:10.17863/CAM.43715 All rights reserved 0401 Atmospheric Sciences Article 2017 ftunivcam https://doi.org/10.17863/CAM.43715 2024-01-11T23:34:13Z 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 Apollo - University of Cambridge Repository Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
0401 Atmospheric Sciences |
spellingShingle |
0401 Atmospheric Sciences Malavelle, Florent F Haywood, Jim M Jones, Andy Gettelman, Andrew Clarisse, Lieven Bauduin, Sophie Allan, Richard P Karset, Inger Helene H Kristjánsson, Jón Egill 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 |
0401 Atmospheric Sciences |
description |
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. |
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 Kristjánsson, Jón Egill 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 Kristjánsson, Jón Egill 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 |
Springer Science and Business Media LLC |
publishDate |
2017 |
url |
https://www.repository.cam.ac.uk/handle/1810/296667 https://doi.org/10.17863/CAM.43715 |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) |
geographic |
Holuhraun |
geographic_facet |
Holuhraun |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://www.repository.cam.ac.uk/handle/1810/296667 doi:10.17863/CAM.43715 |
op_rights |
All rights reserved |
op_doi |
https://doi.org/10.17863/CAM.43715 |
_version_ |
1789967449828884480 |