Spracklen, DV and Rap, A (2013) Natural aerosol–climate feedbacks suppressed by anthropogenic aerosol. Geophysical Research Letters, 40 (19). 5316 - 5319. ISSN 0094-8276
Abstract
The natural environment is an important source of atmospheric aerosol such as dust, sea spray, and wildfire smoke. Climate controls many of these natural aerosol sources, which, in turn, can alter climate through changing the properties of clouds and the Earth's radiative balance. However, the Earth's atmosphere is now heavily modified by anthropogenic pollution aerosol, but how this pollution may alter these natural aerosol–climate feedbacks has not been previously explored. Here we use a global aerosol microphysics model to analyze how anthropogenic aerosol alters one link within these feedbacks, namely, the sensitivity of cloud albedo to changes in natural aerosol. We demonstrate that anthropogenic aerosol in the Northern Hemisphere has halved the hemispheric mean cloud albedo radiative effect that occurs due to changes in natural aerosol emissions. Such a suppression has not occurred in the more pristine Southern Hemisphere.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Copyright (2013) American Geophysical Union. Spracklen, DV and Rap, A, Natural aerosol–climate feedbacks suppressed by anthropogenic aerosol Geophysical Research Letters, 40 (19). To view the published open abstract, go to http://dx.doi.org/10.1002/2013GL057966 |
Keywords: | natural aerosol; climate feedbacks |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Nov 2013 13:22 |
Last Modified: | 13 Jun 2014 19:15 |
Published Version: | http://dx.doi.org/10.1002/2013GL057966 |
Status: | Published |
Publisher: | American Geophysical Union |
Identification Number: | 10.1002/2013GL057966 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:76977 |