DOI: 10.1002/2014GL061678
论文题名: Where is mineral ballast important for surface export of particulate organic carbon in the ocean'
作者: Le Moigne F.A.C. ; Pabortsava K. ; Marcinko C.L.J. ; Martin P. ; Sanders R.J.
刊名: Geophysical Research Letters
ISSN: 0094-9514
EISSN: 1944-9245
出版年: 2014
卷: 41, 期: 23 起始页码: 8460
结束页码: 8468
语种: 英语
Scopus关键词: Carbon
; Oceanography
; Organic carbon
; 234Thorium
; Carbon cycle models
; Carbon export
; High-latitude regions
; Particle fluxes
; Particulate organic carbon
; Regional differences
; Regional variability
; Minerals
; carbon cycle
; correlation
; deep sea
; mass transfer
; particulate organic carbon
; regional pattern
英文摘要: Correlations between particulate organic carbon (POC) and mineral fluxes in the deep ocean have inspired the inclusion of "ballast effect" parameterizations in carbon cycle models. A recent study demonstrated regional variability in the effect of ballast minerals on the flux of POC in the deep ocean. We have undertaken a similar analysis of shallow export data from the Arctic, Atlantic, and Southern Oceans. Mineral ballasting is of greatest importance in the high-latitude North Atlantic, where 60% of the POC flux is associated with ballast minerals. This fraction drops to around 40% in the Southern Ocean. The remainder of the export flux is not associated with minerals, and this unballasted fraction thus often dominates the export flux. The proportion of mineral-associated POC flux often scales with regional variation in export efficiency (the proportion of primary production that is exported). However, local discrepancies suggest that regional differences in ecology also impact the magnitude of surface export. We propose that POC export will not respond equally across all high-latitude regions to possible future changes in ballast availability. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921559543&doi=10.1002%2f2014GL061678&partnerID=40&md5=4277113add9f656a5a673064cdd6fd31
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6778
Appears in Collections: 气候减缓与适应
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作者单位: Ocean Biogeochemistry and Ecosystems, National Oceanography Centre, Southampton, United Kingdom
Recommended Citation:
Le Moigne F.A.C.,Pabortsava K.,Marcinko C.L.J.,et al. Where is mineral ballast important for surface export of particulate organic carbon in the ocean'[J]. Geophysical Research Letters,2014-01-01,41(23).