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DOI: 10.1002/2015GL066753
Influence of anthropogenic aerosol deposition on the relationship between oceanic productivity and warming
Author: Wang R.; Balkanski Y.; Bopp L.; Aumont O.; Boucher O.; Ciais P.; Gehlen M.; Peñuelas J.; Ethé C.; Hauglustaine D.; Li B.; Liu J.; Zhou F.; Tao S.
Source Publication: Geophysical Research Letters
ISSN: 0094-8322
EISSN: 1944-8053
Publishing Year: 2015
Volume: 42, Issue:24
pages begin: 10745
pages end: 10754
Language: 英语
Keyword: anthropogenic aerosols ; nutrient limitation ; ocean biogeochemical model ; ocean productivity
Scopus Keyword: Air quality ; Air quality standards ; Biogeochemistry ; Deposition ; Nutrients ; Oceanography ; Productivity ; Aerosol emissions ; Anthropogenic aerosols ; Biogeochemical modeling ; North Atlantic ; Nutrient limitations ; Nutrient supply ; Satellite data ; Stratified ocean ; Aerosols ; aerosol ; anthropogenic effect ; atmospheric deposition ; biogeochemistry ; biological production ; chlorophyll ; nutrient availability ; nutrient limitation ; satellite data ; sensitivity analysis ; spatiotemporal analysis ; stratification ; warming ; Atlantic Ocean ; Atlantic Ocean (North) ; Indian Ocean ; Pacific Ocean ; Pacific Ocean (North)
English Abstract: Satellite data and models suggest that oceanic productivity is reduced in response to less nutrient supply under warming. In contrast, anthropogenic aerosols provide nutrients and exert a fertilizing effect, but its contribution to evolution of oceanic productivity is unknown. We simulate the response of oceanic biogeochemistry to anthropogenic aerosols deposition under varying climate from 1850 to 2010. We find a positive response of observed chlorophyll to deposition of anthropogenic aerosols. Our results suggest that anthropogenic aerosols reduce the sensitivity of oceanic productivity to warming from -15.2 ± 1.8 to -13.3 ± 1.6 Pg C yr-1 °C-1 in global stratified oceans during 1948-2007. The reducing percentage over the North Atlantic, North Pacific, and Indian Oceans reaches 40, 24, and 25%, respectively. We hypothesize that inevitable reduction of aerosol emissions in response to higher air quality standards in the future might accelerate the decline of oceanic productivity per unit warming. © 2015. American Geophysical Union. All Rights Reserved.
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Document Type: 期刊论文
Appears in Collections:科学计划与规划

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Affiliation: Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQ, Gif-sur-Yvette, France

Recommended Citation:
Wang R.,Balkanski Y.,Bopp L.,et al. Influence of anthropogenic aerosol deposition on the relationship between oceanic productivity and warming[J]. Geophysical Research Letters,2015-01-01,42(24).
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