title: Influence of anthropogenic aerosol deposition on the relationship between oceanic productivity and warming.
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-1in 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.
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQGif-sur-Yvette France; Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences Peking University Beijing China; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Rong
authors.identifier: 0000-0003-1962-0165
authors.initials: R
authors.lastname: Wang
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQGif-sur-Yvette France; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Yves
authors.initials: Y
authors.lastname: Balkanski
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQGif-sur-Yvette France; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Laurent
authors.initials: L
authors.lastname: Bopp
authors.affiliation: Sorbonne Universités (UPMC, Université Paris 06)-CNRS-IRD-MNHN, LOCEAN-IPSL Paris France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Aumont
authors.affiliation: Laboratoire de Météorologie Dynamique, IPSL/CNRS Université Pierre et Marie Curie Paris France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Boucher
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQGif-sur-Yvette France; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Philippe
authors.initials: P
authors.lastname: Ciais
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQGif-sur-Yvette France; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Marion
authors.initials: M
authors.lastname: Gehlen
authors.affiliation: CSIC, Global Ecology Unit CREAF-CEAB-UAB, Cerdanyola del VallèsCataloniaSpain; CREAF, Cerdanyola del VallèsCataloniaSpain.
authors.forename: Josep
authors.initials: J
authors.lastname: Peñuelas
authors.affiliation: Laboratoire d'Oceanographie et de Climatologie, IPSL Paris France.
authors.forename: Christian
authors.initials: C
authors.lastname: Ethé
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQGif-sur-Yvette France; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Didier
authors.initials: D
authors.lastname: Hauglustaine
authors.affiliation: Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences Peking University Beijing China; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Bengang
authors.initials: B
authors.lastname: Li
authors.affiliation: Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences Peking University Beijing China; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Liu
authors.affiliation: Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences Peking University Beijing China; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhou
authors.affiliation: Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences Peking University Beijing China; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences Peking University Beijing China.
authors.forename: Shu
authors.initials: S
authors.lastname: Tao
keywords: anthropogenic aerosols; nutrient limitation; ocean biogeochemical model; ocean productivity