DOI: 10.1007/s00382-015-2781-0
Scopus记录号: 2-s2.0-84938650983
论文题名: Competition between ocean carbon pumps in simulations with varying Southern Hemisphere westerly wind forcing
作者: Huiskamp W.N. ; Meissner K.J. ; d’Orgeville M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 46, 期: 2017-11-12 起始页码: 3463
结束页码: 3480
语种: 英语
英文关键词: Carbon cycle
; Ocean dynamics
; Preformed and remineralized DIC
; Southern annular mode
; Southern Hemisphere westerlies
英文摘要: We analyse the impact of migration and strength of Southern Hemisphere westerly winds on the ocean carbon cycle in a systematic sensitivity study with the University of Victoria Earth System Climate Model. We find that changes in the biological pump are mainly driven by changes in ocean residence times while changes in export production are negligible. Changes in the biological and physical pumps are always of opposite sign; with the physical pump being dominant for southward shifts and the biological pump being dominant for northward shifts. Furthermore, changes in the Pacific Ocean carbon budget dictate the overall changes in global marine and atmospheric carbon. Overall, atmospheric $$\hbox {CO}_2$$CO 2 increases (and $$\Delta ^{14}\hbox {C}$$Δ 14C decreases) for northward shifts or a strengthening in wind forcing. The opposite is true for a southward shift or a weakening in wind forcing. Combining forcings (shift and intensity change) results in a combination of their impacts with the direction of the shift being the first order forcing. The terrestrial carbon reservoir absorbs (releases) 50–70 % of the net oceanic carbon loss (increase), counterbalancing the effect on atmospheric $$\hbox {CO}_2$$CO 2. © 2015, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53724
Appears in Collections: 过去全球变化的重建
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作者单位: Climate Change Research Centre, UNSW Australia, Sydney, NSW, Australia; ARC Centre of Excellence for Climate System Science, UNSW Australia, Sydney, NSW, Australia; Department of Physics, University of Toronto, Toronto, ON, Canada
Recommended Citation:
Huiskamp W.N.,Meissner K.J.,d’Orgeville M.. Competition between ocean carbon pumps in simulations with varying Southern Hemisphere westerly wind forcing[J]. Climate Dynamics,2016-01-01,46(2017-11-12)