The Development and Testing of a New Technique for the Estimation of Profiles of Epsilon using an Acoustic Doppler Current Profiler (ADCP)

使用声学多普勒电流轮廓仪 (ADCP) 估计 Epsilon 轮廓的新技术的开发和测试

基本信息

  • 批准号:
    NE/D007003/1
  • 负责人:
  • 金额:
    $ 7.87万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2006
  • 资助国家:
    英国
  • 起止时间:
    2006 至 无数据
  • 项目状态:
    已结题

项目摘要

Although Continental shelf seas make up a relatively small fraction (~7%) of the world ocean's surface they are thought to make a major contribution (accounting for between 20 and 50% of the total) to the open ocean storage of CO2. The drawdown of CO2 from the atmosphere is driven by a biological pump which is only effective in seasonally stratified zones of the shelf seas. A limiting component of this pump is the vertical mixing which supplies nutrients across the seasonal thermocline to the euphotic zone, thus supporting new primary production. Whilst profiler techniques have been successfully used to estimate the vertical mixing rate through measurement of profiles of epsilon (the rate of dissipation of turbulent kinetic energy) these techniques are costly and time consuming and so measurements limited to short (12-24 hours) periods of time. Our proposal is to develop a new technique, based on a technique already used in Radar Meteorology, which uses a convensional off the shelf ADCP, to measure long time series of the vertical structure of epsilon in the thermocline. The technique will initially be applied to data we have already collected, and the results will be validated against simultaneously collected profiler measurements of epsilon. We also propose to test the technique at a more fundamental level - using spectral techniques - on data which we propose to collect in the Menai Strait.
虽然大陆架海只占世界海洋表面的一小部分(约7%),但它们被认为对开阔海洋储存二氧化碳做出了重大贡献(占总量的20%至50%)。二氧化碳从大气中的下降是由生物泵驱动的,这种泵只在陆架海的季节性分层区有效。这种泵的一个限制性组成部分是垂直混合,它将营养物质穿过季节性温跃层供应到透光层,从而支持新的初级生产。虽然剖面仪技术已成功地用于通过测量湍流动能的耗散率(湍流动能的耗散率)的剖面来估计垂直混合率,但这些技术既昂贵又耗时,因此测量仅限于较短的时间段(12-24小时)。我们的建议是开发一种新的技术,在雷达气象学中已经使用的技术的基础上,它使用一个传统的现成的ADCP,测量长时间序列的垂直结构的跃层中的盐度。该技术最初将应用于我们已经收集的数据,并将根据同时收集的Profiler测量结果对结果进行验证。我们还建议测试技术在一个更基本的水平-使用光谱技术-对数据,我们建议收集在梅奈海峡。

项目成果

期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Impact of acoustic Doppler current profiler (ADCP) motion on structure function estimates of turbulent kinetic energy dissipation rate
声多普勒电流剖面仪 (ADCP) 运动对湍流动能耗散率结构函数估计的影响
  • DOI:
    10.5194/os-18-169-2022
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    3.2
  • 作者:
    Scannell B
  • 通讯作者:
    Scannell B
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Tom Rippeth其他文献

Tom Rippeth的其他文献

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{{ truncateString('Tom Rippeth', 18)}}的其他基金

Enabling Sustainable Wind Energy Expansion in Seasonally Stratified Seas (eSWEETS3)
实现季节性分层海洋的可持续风能扩张 (eSWEETS3)
  • 批准号:
    NE/X004775/1
  • 财政年份:
    2024
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Research Grant
PcynMix (Pcynocline Mixing in Shelf Seas)
PcynMix(大陆架海中的 Pcynocline 混合)
  • 批准号:
    NE/L003600/1
  • 财政年份:
    2014
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Research Grant
OSMOSIS
渗透
  • 批准号:
    NE/I019794/1
  • 财政年份:
    2011
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Research Grant
The Environment of the Arctic: Climate, Ocean and Sea Ice (tea-cosi)
北极环境:气候、海洋和海冰 (tea-cosi)
  • 批准号:
    NE/I029226/1
  • 财政年份:
    2011
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Research Grant
Applied Physical Oceanography. Masters Training Grant (MTG) to provide funding for 4 full studentships for two years.
应用物理海洋学。
  • 批准号:
    NE/H525397/1
  • 财政年份:
    2009
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Training Grant
A thermocline nutrient pump
温跃层营养泵
  • 批准号:
    NE/F002858/1
  • 财政年份:
    2009
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Research Grant
A New Method for the Estimation of Profiles of Diffusivity in the Stratified Marine Environment
分层海洋环境中扩散率剖面估计的新方法
  • 批准号:
    NE/F019467/1
  • 财政年份:
    2009
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Research Grant
The fate of freshwater in tidally stirred shelf seas
潮汐搅动的陆架海中淡水的命运
  • 批准号:
    NE/D012023/1
  • 财政年份:
    2007
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Research Grant
The fate of freshwater in tidally stirred shelf seas
潮汐搅动的陆架海中淡水的命运
  • 批准号:
    NE/D011566/1
  • 财政年份:
    2007
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Research Grant
Applied Physical Oceanography
应用物理海洋学
  • 批准号:
    NE/E522716/1
  • 财政年份:
    2006
  • 资助金额:
    $ 7.87万
  • 项目类别:
    Training Grant

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