Pan-oceanic response to increasing anthropogenic aerosols: Impacts on the Southern Hemisphere oceanic circulation
Article
Article Title | Pan-oceanic response to increasing anthropogenic aerosols: Impacts on the Southern Hemisphere oceanic circulation |
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ERA Journal ID | 1874 |
Article Category | Article |
Authors | Cai, W., Bi, D., Church, J., Cowan, T., Dix, M. and Rotstayn, L. |
Journal Title | Geophysical Research Letters |
Journal Citation | 33 (21) |
Number of Pages | 5 |
Year | 2006 |
Publisher | John Wiley & Sons |
Place of Publication | United States |
ISSN | 0094-8276 |
1944-8007 | |
Digital Object Identifier (DOI) | https://doi.org/10.1029/2006GL027513 |
Web Address (URL) | https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2006GL027513 |
Abstract | [1] Examinations of the impact of anthropogenic aerosols on oceanic heat content have focused largely on the global average response. Given that aerosol-induced cooling is greater in the Northern Hemisphere (NH) than in the Southern Hemisphere (SH), do aerosols induce a greater impact on NH oceanic heat content? Sea level rise over the past 50 years has shown little hemispheric differentiation. Using a set of global climate model experiments forced with and without anthropogenic aerosols, we show that increasing aerosols in the 20th century induce a pan-oceanic heat redistribution. This leads to a reduction in the SH oceanic heat content comparable to that in the NH oceans. The process includes a strengthening of the northward cross-equatorial heat transport in the Atlantic and Pacific Oceans, with the majority taking place in the Atlantic Ocean via the most effective pathway: the globally interconnected ocean current system associated with the Atlantic overturning. |
ANZSRC Field of Research 2020 | 370103. Atmospheric aerosols |
370201. Climate change processes | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia |
https://research.usq.edu.au/item/z09qy/pan-oceanic-response-to-increasing-anthropogenic-aerosols-impacts-on-the-southern-hemisphere-oceanic-circulation
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