globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069781
论文题名:
Enhanced carbon export to the abyssal depths driven by atmosphere dynamics
作者: Pedrosa-Pàmies R.; Sanchez-Vidal A.; Canals M.; Lampadariou N.; Velaoras D.; Gogou A.; Parinos C.; Calafat A.
刊名: Geophysical Research Letters
ISSN: 0094-8719
EISSN: 1944-8450
出版年: 2016
卷: 43, 期:16
起始页码: 8626
结束页码: 8636
语种: 英语
英文关键词: atmospheric conditions ; deep sea ; Mediterranean Sea ; opal ; organic carbon ; sinking particles
Scopus关键词: Carbon dioxide ; Nutrients ; Atmospheric conditions ; Deep sea ; Mediterranean sea ; Opal ; Sinking particles ; Organic carbon ; Bacillariophyta
英文摘要: Long-term biogeochemical observations are critical to understand the natural ability of the oceans to fix CO2 into organic carbon and export it to the deep as sinking particles. Here we present results from a 3 year (2010–2013) sediment trap deployment that allowed detecting interannual variations of carbon fluxes beyond 4000 m depth in the Eastern Mediterranean Sea. Anomalous atmospheric conditions triggering strong heat losses in winter–spring 2012 resulted in convective mixing, nutrient uplifting, and a diatom-dominated bloom southeast of Crete. Phytoplankton growth, reinforced by the arrival of nutrients from airborne Etna volcano ash, was the highest in the last decade (satellite-derived Chl a concentrations up to 1.9 mg m−3). This situation caused carbon export to increase by 2 orders of magnitude (12.2 mg m−2 d−1) with respect to typical values, which demonstrates how pulses of sinking fresh phytodetritus linked to rare atmospheric processes can episodically impact one of the most oligotrophic environments in the world ocean. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983385458&doi=10.1002%2f2016GL069781&partnerID=40&md5=fea618d09c503357d31ecf80f3b050e7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9682
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Barcelona, Spain

Recommended Citation:
Pedrosa-Pàmies R.,Sanchez-Vidal A.,Canals M.,et al. Enhanced carbon export to the abyssal depths driven by atmosphere dynamics[J]. Geophysical Research Letters,2016-01-01,43(16).
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