globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069032
论文题名:
Dense bottom gravity currents and their impact on pelagic methanotrophy at oxic/anoxic transition zones
作者: Schmale O.; Krause S.; Holtermann P.; Power Guerra N.C.; Umlauf L.
刊名: Geophysical Research Letters
ISSN: 0094-9615
EISSN: 1944-9346
出版年: 2016
卷: 43, 期:10
起始页码: 5225
结束页码: 5232
语种: 英语
英文关键词: anoxic basin ; Baltic Sea ; methane ; methanotrophs ; redoxcline ; turbulent mixing
Scopus关键词: Gravitation ; Gravity waves ; Anoxic basins ; Baltic sea ; Methanotrophs ; Redoxcline ; Turbulent mixing ; Methane
英文摘要: We show that inflows of oxygenated waters into sulfidic layers have a strong impact on biogeochemical transformation at oxic/anoxic transition zones. Taking the pelagic methane dynamics in the Gotland Basin as an example, we performed our studies when one of the largest inflows ever recorded entered the Baltic Sea in March 2015. An inflowing gravity current transported oxic waters into the sulfidic deep layers and freshly generated a near-bottom secondary redox interface. At the upper slope, where the inflowing water masses were vigorously turbulent and the main and secondary redox interfaces in close contact to each other, methane oxidation rates inside the transition zone were found to be higher compared to the weakly turbulent basin interior. At the main redox interface in the basin center, lateral intrusions of oxygenated waters into intermediate water depth may have stimulated the growth of the methanotrophic community and their activity. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978858535&doi=10.1002%2f2016GL069032&partnerID=40&md5=43677a545f77ab41bdc225d2ba3c8f82
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10578
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: Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Rostock, Germany

Recommended Citation:
Schmale O.,Krause S.,Holtermann P.,et al. Dense bottom gravity currents and their impact on pelagic methanotrophy at oxic/anoxic transition zones[J]. Geophysical Research Letters,2016-01-01,43(10).
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