DOI: 10.1175/JCLI-D-13-00343.1
Scopus记录号: 2-s2.0-84897644648
论文题名: Response of the ocean natural carbon storage to projected twenty-first-century climate change
作者: Bernardello R. ; Marinov I. ; Palter J.B. ; Sarmiento J.L. ; Galbraith E.D. ; Slater R.D.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 5 起始页码: 2033
结束页码: 2053
语种: 英语
Scopus关键词: Biogeochemical tracers
; Control simulation
; Deep-water formation
; Dissolved inorganic carbon
; Natural carbons
; Surface wind stress
; Time-varying perturbations
; Vertical gradients
; Biogeochemistry
; Buoyancy
; Carbon
; Carbon dioxide
; Climate change
; Computer simulation
; Oceanography
; Solubility
; Wind stress
; Forestry
; biogeochemistry
; carbon cycle
; carbon sequestration
; climate change
; organic matter
; salinity
; solubility
; temperature effect
; tracer
; twenty first century
; wind stress
英文摘要: The separate impacts of wind stress, buoyancy fluxes, and CO2 solubility on the oceanic storage of natural carbon are assessed in an ensemble of twentieth- to twenty-first-century simulations, using a coupled atmosphere-ocean-carbon cycle model. Time-varying perturbations for surface wind stress, temperature, and salinity are calculated from the difference between climate change and preindustrial control simulations, and are imposed on the ocean in separate simulations. The response of the natural carbon storage to each perturbation is assessed with novel prognostic biogeochemical tracers,which can explicitly decompose dissolved inorganic carbon into biological, preformed, equilibrium, and disequilibriumcomponents. Strong responses of these components to changes in buoyancy and winds are seen at high latitudes, reflecting the critical role of intermediate and deep waters. Overall, circulation-driven changes in carbon storage are mainly due to changes in buoyancy fluxes, with wind-driven changes playing an opposite but smaller role. Results suggest that climate-driven perturbations to the ocean natural carbon cycle will contribute 20 Pg C to the reduction of the ocean accumulated total carbon uptake over the period 1860-2100. This reflects a strong compensation between a buildup of remineralized organic matter associated with reduced deep-water formation (+96Pg C) and a decrease of preformed carbon (-116 Pg C). The latter is due to a warming-induced decrease in CO2 solubility (-52 Pg C) and a circulation-induced decrease in disequilibrium carbon storage (-64Pg C). Climate change gives rise to a large spatial redistribution of ocean carbon, with increasing concentrations at high latitudes and stronger vertical gradients at low latitudes. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50930
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Earth and Environmental Science, The University of Pennsylvania, Philadelphia, PA, United States; Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, QC, Canada; Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, NJ, United States; Department of Earth and Planetary Sciences, McGill University, Montreal, QC, Canada
Recommended Citation:
Bernardello R.,Marinov I.,Palter J.B.,et al. Response of the ocean natural carbon storage to projected twenty-first-century climate change[J]. Journal of Climate,2014-01-01,27(5)