Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072079 |
Scaling oxygen microprofiles at the sediment interface of deep stratified waters | |
Schwefel, Robert1; Hondzo, Miki2; Wuest, Alfred1,3; Bouffard, Damien1,3 | |
2017-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; USA |
英文摘要 | Dissolved oxygen microprofiles at the sediment-water interface of Lake Geneva were measured concurrently with velocities 0.25 to 2m above the sediment. The measurements and scaling analyses indicate dissolved oxygen fluctuations and turbulent fluxes in exceedance of molecular diffusion in the proximity of the sediment-water interface. The measurements allowed the parameterization of the turbulent diffusion as a function of the dimensionless height above the sediment and the turbulence above the sediment-water interface. Turbulent diffusion depended strongly on the friction velocity and differed from formulations reported in the literature that are based on concepts of turbulent and developed wall-bounded flows. The dissolved oxygen microprofiles and proposed parameterization of turbulent diffusion enable a foundation for the similarity scaling of oxygen microprofiles in proximity to the sediment. The proposed scaling allows the estimation of diffusive boundary layer thickness, oxygen flux, and oxygen microprofile distribution in the near-sediment boundary layer. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396115000019 |
WOS关键词 | DIFFUSIONAL MASS-TRANSFER ; BOUNDARY-LAYER ; AQUATIC ENVIRONMENTS ; FLOW ; TURBULENCE ; WALL ; DYNAMICS ; HYPOXIA ; BASINS ; OCEAN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27427 |
专题 | 气候变化 |
作者单位 | 1.Ecole Polytech Fed Lausanne, ENAC IEE APHYS, Margaretha Kamprad Chair Environm Sci & Limnol, Phys Aquat Syst Lab, Lausanne, Switzerland; 2.Univ Minnesota, Dept Civil Environm & Geoengn, St Anthony Falls Lab, Minneapolis, MN USA; 3.Swiss Fed Inst Aquat Sci & Technol Eawag, Surface Waters Res & Management, Kastanienbaum, Switzerland |
推荐引用方式 GB/T 7714 | Schwefel, Robert,Hondzo, Miki,Wuest, Alfred,et al. Scaling oxygen microprofiles at the sediment interface of deep stratified waters[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(3). |
APA | Schwefel, Robert,Hondzo, Miki,Wuest, Alfred,&Bouffard, Damien.(2017).Scaling oxygen microprofiles at the sediment interface of deep stratified waters.GEOPHYSICAL RESEARCH LETTERS,44(3). |
MLA | Schwefel, Robert,et al."Scaling oxygen microprofiles at the sediment interface of deep stratified waters".GEOPHYSICAL RESEARCH LETTERS 44.3(2017). |
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