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Decadal trends in the ocean carbon sink.
DeVries, Tim; Le Quéré, Corinne; Andrews, Oliver; Berthet, Sarah; Hauck, Judith; Ilyina, Tatiana; Landschützer, Peter; Lenton, Andrew; Lima, Ivan D; Nowicki, Michael; Schwinger, Jörg; Séférian, Roland.
Afiliación
  • DeVries T; Department of Geography, University of California, Santa Barbara, CA 93106; tdevries@geog.ucsb.edu.
  • Le Quéré C; Earth Research Institute, University of California, Santa Barbara, CA 93106.
  • Andrews O; Tyndall Centre for Climate Change Research, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom.
  • Berthet S; Tyndall Centre for Climate Change Research, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom.
  • Hauck J; School of Geographical Sciences, University of Bristol, Bristol BS8 1TH, United Kingdom.
  • Ilyina T; Centre National de Recherche Météorologique, Unite Mixte de Recherche, 31100 Toulouse, France.
  • Landschützer P; Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar und Meeresforschung, 27570 Bremerhaven, Germany.
  • Lenton A; Max Planck Institute for Meteorology, 20146 Hamburg, Germany.
  • Lima ID; Max Planck Institute for Meteorology, 20146 Hamburg, Germany.
  • Nowicki M; Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Hobart, Battery Point, TAS 7004, Australia.
  • Schwinger J; Centre for Southern Hemisphere Oceans Research, CSIRO Marine Laboratories, Hobart, TAS 7000, Australia.
  • Séférian R; Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, TAS 7001, Australia.
Proc Natl Acad Sci U S A ; 116(24): 11646-11651, 2019 06 11.
Article en En | MEDLINE | ID: mdl-31138699
Measurements show large decadal variability in the rate of [Formula: see text] accumulation in the atmosphere that is not driven by [Formula: see text] emissions. The decade of the 1990s experienced enhanced carbon accumulation in the atmosphere relative to emissions, while in the 2000s, the atmospheric growth rate slowed, even though emissions grew rapidly. These variations are driven by natural sources and sinks of [Formula: see text] due to the ocean and the terrestrial biosphere. In this study, we compare three independent methods for estimating oceanic [Formula: see text] uptake and find that the ocean carbon sink could be responsible for up to 40% of the observed decadal variability in atmospheric [Formula: see text] accumulation. Data-based estimates of the ocean carbon sink from [Formula: see text] mapping methods and decadal ocean inverse models generally agree on the magnitude and sign of decadal variability in the ocean [Formula: see text] sink at both global and regional scales. Simulations with ocean biogeochemical models confirm that climate variability drove the observed decadal trends in ocean [Formula: see text] uptake, but also demonstrate that the sensitivity of ocean [Formula: see text] uptake to climate variability may be too weak in models. Furthermore, all estimates point toward coherent decadal variability in the oceanic and terrestrial [Formula: see text] sinks, and this variability is not well-matched by current global vegetation models. Reconciling these differences will help to constrain the sensitivity of oceanic and terrestrial [Formula: see text] uptake to climate variability and lead to improved climate projections and decadal climate predictions.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Proc Natl Acad Sci U S A Año: 2019 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Proc Natl Acad Sci U S A Año: 2019 Tipo del documento: Article Pais de publicación: Estados Unidos