DOI: 10.1002/grl.50414
论文题名: Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models
作者: Resplandy L. ; Bopp L. ; Orr J.C. ; Dunne J.P.
刊名: Geophysical Research Letters
ISSN: 0094-8890
EISSN: 1944-8621
出版年: 2013
卷: 40, 期: 12 起始页码: 3091
结束页码: 3095
语种: 英语
英文关键词: acidification
; CMIP5
; intermediate waters
; mode waters
Scopus关键词: Carbon concentrations
; CMIP5
; Coupled Model Intercomparison Project
; Earth system model
; Geochemical properties
; Influence surfaces
; Intermediate waters
; Ocean acidifications
; Carbon
; Carbon dioxide
; Climate change
; Climate models
; Computer simulation
; Geochemistry
; Models
; Surface waters
; Acidification
; acidification
; carbon dioxide
; climate change
; climate feedback
; concentration (composition)
; intermediate water
; mode water
; pH
; surface water
英文摘要: Consistent with recent observations, Coupled Model Intercomparison Project 5 Earth System Models project highest acidification rates in subsurface waters. Using seven Earth System Models, we find that high acidification rates in mode and intermediate waters (MIW) on centennial time scales (-0.0008 to -0.0023 - 0.0001 yr-1 depending on the scenario) are predominantly explained by the geochemical effect of increasing atmospheric CO2, whereas physical and biological climate change feedbacks explain less than 10% of the simulated changes. MIW are characterized by a larger surface area to volume ratio than deep and bottom waters leading to 5 to 10 times larger carbon uptake. In addition, MIW geochemical properties result in a sensitivity to increasing carbon concentration twice larger than surface waters (δH+ of +1.2×10-4 mmol m-3 for every mmol m-3 of dissolved carbon in MIW versus +0.6×10-4 in surface waters). Low pH transported by mode and intermediate waters is likely to influence surface pH in upwelling regions decades after their isolation from the atmosphere. Key Points Highest acidification rates are located in mode and intermediate waters (MIW) MIW combine large carbon uptake with high pH sensitivity to increasing CO2 Low pH in MIW could influence surface pH in upwelling regions ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880528413&doi=10.1002%2fgrl.50414&partnerID=40&md5=a9ccb1ceee5981b60442e3902e1e9fe3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6154
Appears in Collections: 气候减缓与适应
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作者单位: Laboratory for Science of Climate and Environment, IPSL, CEA-UVSQ-CNRS, Gif-sur-Yvette, Paris, France
Recommended Citation:
Resplandy L.,Bopp L.,Orr J.C.,et al. Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models[J]. Geophysical Research Letters,2013-01-01,40(12).