globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069233
论文题名:
Geographical, seasonal, and depth variation in sinking particle speeds in the North Atlantic
作者: Villa-Alfageme M.; de Soto F.C.; Ceballos E.; Giering S.L.C.; Le Moigne F.A.C.; Henson S.; Mas J.L.; Sanders R.J.
刊名: Geophysical Research Letters
ISSN: 0094-8769
EISSN: 1944-8500
出版年: 2016
卷: 43, 期:16
起始页码: 8609
结束页码: 8616
语种: 英语
英文关键词: 210Po-210Pb ; biological carbon pump ; North Atlantic ; particle flux attenuation ; particle sinking velocity ; POC
Scopus关键词: Blooms (metal) ; Forestry ; Lead ; Oceanography ; Carbon sequestration ; Community structures ; Controlling factors ; North Atlantic ; Particle fluxes ; Productive systems ; Sinking particles ; Sinking velocity ; Velocity
英文摘要: Particle sinking velocity is considered to be a controlling factor for carbon transport to the deep sea and thus carbon sequestration in the oceans. The velocities of the material exported to depth are considered to be high in high-latitude productive systems and low in oligotrophic distributions. We use a recently developed method based on the measurement of the radioactive pair 210Po-210Pb to calculate particle sinking velocities in the temperate and oligotrophic North Atlantic during different bloom stages. Our estimates of average sinking velocities (ASVs) show that slowly sinking particles (<100 m d−1) contribute significantly to carbon flux at all the locations except in the temperate regions during the bloom. ASVs appear to vary strongly with season, which we propose is caused by changes in the epipelagic community structure. Our results are the first field data to confirm the long-standing theory that particle sinking velocities increase with depth, with increases of up to 90% between 50 and 150 m depth. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983317314&doi=10.1002%2f2016GL069233&partnerID=40&md5=f5f74d746b4e4c5959fb23d516070a60
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9732
Appears in Collections:科学计划与规划
气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Departamento de Física Aplicada II, ETSIE, Universidad de Sevilla, Seville, Spain

Recommended Citation:
Villa-Alfageme M.,de Soto F.C.,Ceballos E.,et al. Geographical, seasonal, and depth variation in sinking particle speeds in the North Atlantic[J]. Geophysical Research Letters,2016-01-01,43(16).
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Villa-Alfageme M.]'s Articles
[de Soto F.C.]'s Articles
[Ceballos E.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Villa-Alfageme M.]'s Articles
[de Soto F.C.]'s Articles
[Ceballos E.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Villa-Alfageme M.]‘s Articles
[de Soto F.C.]‘s Articles
[Ceballos E.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.