| 项目编号: | NE/I002103/1
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| 项目名称: | Large Eddy Simulation of Shelf Sea Thermocline Mixing Processes |
| 作者: | Jeff Polton
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| 承担单位: | National Oceanography Centre
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| 批准年: | 2009
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| 开始日期: | 2010-06-09
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| 结束日期: | 2013-05-09
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| 资助金额: | GBP69829
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| 资助来源: | UK-NERC
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| 项目类别: | Research Grant
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| 国家: | UK
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| 语种: | 英语
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| 特色学科分类: | Ecol, biodivers. & systematics 
; (5%)
; Marine environments 
; (95%)
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| 英文摘要: | The continental shelf seas provide a transistion zone between estuaries and the ocean across which carbon, nutrients, sediments and contaminants are exchanged. Whilst the currents and mixing on the continental shelf are dominated by the tide interacting with the sea bed, significant levels of biological primary production occurs in regions that stratify during the summer months. The exchange of nutrients and carbon across these critical interfaces of stratified fluid is poorly understood and is also underrepresented in numerical models. The current proposal aims to exploit state-of-the-art computer modelling and analysis tools in the investigation and quantification of the physical mechanisms and processes responsible for the fluxes across this critical interface. In particular the focus will be on understanding the interaction between mixed layer turbulence and wind-driven inertial oscillations in the tidally-strong shelf sea environment. The hypothesis is that these interactions at the thermocline will exceed a critical shear threshold leading to catastrophic loss of stability and episodic mixing. Parameterisations for this mixing will be developed. The potential impact on the shelf sea ecosystem will then be investigated by looking at the nutrient flux into the seasonal thermocline. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/103745
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| 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: | National Oceanography Centre
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| Recommended Citation: | |
Jeff Polton. Large Eddy Simulation of Shelf Sea Thermocline Mixing Processes. 2009-01-01.
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