DOI: 10.1002/2015GL065073
论文题名: Pathways of anthropogenic carbon subduction in the global ocean
作者: Bopp L. ; Lévy M. ; Resplandy L. ; Sallée J.B.
刊名: Geophysical Research Letters
ISSN: 0094-8633
EISSN: 1944-8364
出版年: 2015
卷: 42, 期: 15 起始页码: 6416
结束页码: 6423
语种: 英语
英文关键词: anthropogenic carbon
; ocean subduction
Scopus关键词: Diffusion
; Anthropogenic carbon
; Carbon transfer
; Ocean carbon cycle
; Ocean subduction
; Primary mechanism
; Spatial patterns
; Tightly-coupled
; Vertical diffusion
; Oceanography
; anthropogenic effect
; biological uptake
; carbon
; carbon cycle
; global ocean
; mixed layer
; seasonality
; subduction zone
英文摘要: The oceanic uptake of anthropogenic carbon is tightly coupled to carbon subduction, i.e., the physical carbon transfer from the well-ventilated surface ocean to its interior. Despite their importance, pathways of anthropogenic carbon subduction are poorly understood. Here we use an ocean carbon cycle model to quantify the mechanisms controlling this subduction. Over the last decade, 90% of the oceanic anthropogenic carbon is subducted at the base of the seasonally varying mixed layer. Vertical diffusion is the primary mechanism of this subduction (contributing 65% of total subduction), despite very low local fluxes. In contrast, advection drives the spatial patterns of subduction, with high positive and negative local fluxes. Our results suggest that vertical diffusion could have a leading role in anthropogenic carbon subduction, which highlights the need for an accurate estimate of vertical diffusion intensity in the upper ocean to further constrain estimates of the future evolution of carbon uptake. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84940449480&doi=10.1002%2f2015GL065073&partnerID=40&md5=cbc29db7db8d2c86e70c6b4bce84a0a3
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8249
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: LSCE-IPSL, CNRS/CEA/UVSQ, CEA Saclay, Gif-sur-Yvette, France
Recommended Citation:
Bopp L.,Lévy M.,Resplandy L.,et al. Pathways of anthropogenic carbon subduction in the global ocean[J]. Geophysical Research Letters,2015-01-01,42(15).