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CAREER: From the Lab to the Ocean: Experimental modeling of Internal Tide Generation by Topography

CAREER: From the Lab to the Ocean: Experimental modeling of Internal Tide Generation by Topography
职业:从实验室到海洋:地形产生内潮汐的实验模型
批准号:
0645529
负责人:
Thomas Peacock
金额:
$50.39万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2007
资助国家:
美国
项目状态:
已结题
起止时间:
2007-04-01 至 2013-03-31

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项目成果

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中文摘要
翻译
OCE-0645529智能优点:由于最近人们认识到内波在深海混合中的重要作用,深海内波产生目前是一个非常活跃的研究课题。这项工作的学术价值在于对有关深海水深测量产生内波的突出基本问题进行了实验室调查,而这方面的实验数据非常缺乏。虽然是实验室规模,但拟议的实验与海洋过程直接相关。研究中解决的突出问题是来自二维和三维测深的内潮的模式组成、能量通量和不稳定性。这一及时的调查将通过复杂的实验室实验,扩大目前对内波产生的观测、数值和理论理解。这些实验将在不符合当前理论和数值模型的情况下产生详细的时空数据,而实地研究不可避免地只能在不受控制的环境中提供稀疏数据。这项研究还将开发实验的协同数值模拟。更广泛的影响:内波影响地球气候和现代水下技术。我们通过网站提供的基准数据验证了未来的理论和数值模型,这些模型将增强我们预测内波对环境和技术影响的能力。麻省理工学院和加州大学洛杉矶分校将建立一种新的伙伴关系,这将有助于开发非静力ROMS模型,该模型有望成为下一代社区海洋模型。通过这种新的伙伴关系和对远洋研究的参与,职业奖将促进具有不同背景的科学团体之间富有成效的合作,鼓励思想和方法的交流。PI包括麦克威廉姆斯教授和阿尔福德助理教授的合作信件,以证明实验结果所产生的实用性和激动人心的作用。PI将使用他最先进的实验设备来进行K-12、本科生和研究生的动手教学。高中生和本科生将进行与职业研究目标相结合的实验,并由麻省理工学院的教育工作者提供评估。将开发一个关于内部潮汐的新的研究生课程模块,麻省理工学院-伍兹霍尔联合项目的两名博士生,一名女性,少数民族学生,将接受实验室和远洋研究方面的培训。PI将参加一个面向科学教育工作者的暑期项目,他将为该项目组织关于海洋科学的会议。来自海洋科学教育卓越中心、科学研究所、麻省理工学院-伍兹霍尔联合计划和教师科学与工程计划的合作信函证明了他们对支持PI教育计划的承诺。
英文摘要
OCE-0645529Intellectual merit: Internal-wave generation in the deep ocean is currently a very active research topic because of the recent recognition of its important role in deep-ocean mixing. The intellectual merit of the work is in the laboratory investigation of outstanding, fundamental issues regarding internal-wave generation by deep-ocean bathymetry, for which there is a significant absence of experimental data. Although lab-scale, the proposed experiments are directly relevant to ocean processes. The outstanding issues addressed in study are the modal composition, energy-flux and instabilities of internal tides from 2D and 3D bathymetry. This timely investigation will expand current observational, numerical and theoretical understanding of internal-wave generation through sophisticated laboratory experiments. The experiments will generate detailed spatiotemporal data in regimes that are not amenable to current theoretical and numerical models, and for which field studies can inevitably provide only sparse data in uncontrolled environments. This research will also develop synergistic numerical modeling of the experiments.Broader impact: Internal waves impact the Earth's climate and modern-day underwater technology. Future theoretical and numerical models that have been validated by our benchmark data, made available through a website, will enhance our ability to predict the environmental and technological impact of internal waves. A new partnership between MIT and UCLA will be established that will be instrumental for the development of a non-hydrostatic ROMS model, which has promise to become a next-generation community ocean model. Through this new partnership and involvement in ocean-going research, the CAREER award will facilitate fruitful collaboration of scientific groups with different backgrounds, encouraging exchange of ideas and methodologies. The PI has included letters of collaboration from Prof. McWilliams and Assistant Prof. Alford to attest to the utility and excitement generated by the experimental results. The PI will use his state-of-the-art experimental facilities for hands-on teaching of K-12, undergraduate and graduate students. High-school and undergraduate students will perform experiments integrated with the CAREER research goals; with assessment provided by educators at MIT. A new graduate-course module on internal tides will be developed, and two Ph.D. students in the MIT-Woods Hole Joint Program, one a female, minority student, will be trained in laboratory and ocean-going research. The PI will participate in a summer program for science educators, for which he will organize sessions on ocean science. Letters of collaboration from the Center for Ocean Sciences Education Excellence, the Research Science Institute, the MIT-Woods Hole Joint Program and the Science and Engineering Program for Teachers testify their commitment to supporting the PI's education plan.
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会议论文
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