Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols
Aerosols offset a poorly quantified fraction of anthropogenic greenhouse gas warming, and the aerosol impact on clouds is the most uncertain mechanism of anthropogenic climate forcing. Here, observations of a relatively weak average response of liquid cloud water to aerosol perturbations are extende...
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American Geophysical Union
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ftunivreading:oai:centaur.reading.ac.uk:91920 2024-05-19T07:44:24+00:00 Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols Trofimov, Heido Bellouin, Nicolas Toll, Velle 2020-07-23 text https://centaur.reading.ac.uk/91920/ https://centaur.reading.ac.uk/91920/1/873391_1_merged_1589894998.pdf en eng American Geophysical Union https://centaur.reading.ac.uk/91920/1/873391_1_merged_1589894998.pdf Trofimov, H., Bellouin, N. <https://centaur.reading.ac.uk/view/creators/90005006.html> orcid:0000-0003-2109-9559 and Toll, V. <https://centaur.reading.ac.uk/view/creators/90008037.html> (2020) Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols. Journal of Geophysical Research: Atmospheres, 125 (14). e2020JD032575. ISSN 2169-8996 doi: https://doi.org/10.1029/2020JD032575 <https://doi.org/10.1029/2020JD032575> Article PeerReviewed 2020 ftunivreading https://doi.org/10.1029/2020JD032575 2024-05-01T00:26:24Z Aerosols offset a poorly quantified fraction of anthropogenic greenhouse gas warming, and the aerosol impact on clouds is the most uncertain mechanism of anthropogenic climate forcing. Here, observations of a relatively weak average response of liquid cloud water to aerosol perturbations are extended to much larger areas than in previous studies, with the polluted cloud areas covering hundreds by hundreds of kilometers. Polluted clouds detected in satellite images at the global anthropogenic air pollution hot spot of Norilsk, Russia, and at other various major aerosol source regions show close compensation between aerosol-induced cloud water increases and decreases. In the sampled Norilsk cloud perturbations the decrease in LWP offsets 3% of the radiative forcing through the Twomey effect on average. Weak cloud water response on average in large polluted areas is in very good agreement with previous results based on observations of small-scale ship-track-likeindustrial cloud perturbations, helping to reduce the uncertainty associated with the anthropogenic aerosol impacts on clouds. Article in Journal/Newspaper norilsk CentAUR: Central Archive at the University of Reading Journal of Geophysical Research: Atmospheres 125 14 |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
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English |
description |
Aerosols offset a poorly quantified fraction of anthropogenic greenhouse gas warming, and the aerosol impact on clouds is the most uncertain mechanism of anthropogenic climate forcing. Here, observations of a relatively weak average response of liquid cloud water to aerosol perturbations are extended to much larger areas than in previous studies, with the polluted cloud areas covering hundreds by hundreds of kilometers. Polluted clouds detected in satellite images at the global anthropogenic air pollution hot spot of Norilsk, Russia, and at other various major aerosol source regions show close compensation between aerosol-induced cloud water increases and decreases. In the sampled Norilsk cloud perturbations the decrease in LWP offsets 3% of the radiative forcing through the Twomey effect on average. Weak cloud water response on average in large polluted areas is in very good agreement with previous results based on observations of small-scale ship-track-likeindustrial cloud perturbations, helping to reduce the uncertainty associated with the anthropogenic aerosol impacts on clouds. |
format |
Article in Journal/Newspaper |
author |
Trofimov, Heido Bellouin, Nicolas Toll, Velle |
spellingShingle |
Trofimov, Heido Bellouin, Nicolas Toll, Velle Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols |
author_facet |
Trofimov, Heido Bellouin, Nicolas Toll, Velle |
author_sort |
Trofimov, Heido |
title |
Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols |
title_short |
Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols |
title_full |
Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols |
title_fullStr |
Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols |
title_full_unstemmed |
Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols |
title_sort |
large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols |
publisher |
American Geophysical Union |
publishDate |
2020 |
url |
https://centaur.reading.ac.uk/91920/ https://centaur.reading.ac.uk/91920/1/873391_1_merged_1589894998.pdf |
genre |
norilsk |
genre_facet |
norilsk |
op_relation |
https://centaur.reading.ac.uk/91920/1/873391_1_merged_1589894998.pdf Trofimov, H., Bellouin, N. <https://centaur.reading.ac.uk/view/creators/90005006.html> orcid:0000-0003-2109-9559 and Toll, V. <https://centaur.reading.ac.uk/view/creators/90008037.html> (2020) Large-scale industrial cloud perturbations confirm bidirectional cloud water responses to anthropogenic aerosols. Journal of Geophysical Research: Atmospheres, 125 (14). e2020JD032575. ISSN 2169-8996 doi: https://doi.org/10.1029/2020JD032575 <https://doi.org/10.1029/2020JD032575> |
op_doi |
https://doi.org/10.1029/2020JD032575 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
125 |
container_issue |
14 |
_version_ |
1799484181396324352 |