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

知识价值：由于最近认识到深海内波产生在深海混合中的重要作用，目前是一个非常活跃的研究课题。这项工作的智力价值在于对有关深海测深产生内波的突出的、基本的问题进行了实验室研究，这方面缺乏大量的实验数据。虽然是实验室规模，但拟议的实验与海洋过程直接相关。在研究中突出的问题是模态组成，能量通量和不稳定的内部潮汐从二维和三维测深。这项及时的调查将通过复杂的实验室实验扩展当前对内波产生的观测、数值和理论理解。实验将产生详细的时空数据，这些数据不适合当前的理论和数值模型，并且在不受控制的环境中，实地研究不可避免地只能提供稀疏的数据。本研究也将发展实验的协同数值模拟。更广泛的影响：内波影响地球的气候和现代水下技术。未来的理论和数值模型将通过我们的基准数据验证，并通过网站提供，这将提高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之间将建立新的合作伙伴关系，这将有助于开发非流体静力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参与远洋研究，职业生涯奖将促进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。该项目包括McWilliams教授和Alford助理教授的合作信，以证明实验结果的实用性和令人兴奋的效果。PI将使用他最先进的实验设备对K-12，本科生和研究生进行动手教学。高中生和大学生将进行与CAREER研究目标相结合的实验；由麻省理工学院的教育工作者提供评估。一个关于内部潮汐的新研究生课程模块将被开发出来，麻省理工学院-伍兹霍尔联合项目的两名博士生，其中一名是女性，少数民族学生，将接受实验室和海洋研究方面的培训。PI将参加一个面向科学教育者的暑期项目，为此他将组织有关海洋科学的课程。来自海洋科学卓越教育中心、科学研究所、麻省理工学院-伍兹霍尔联合项目和教师科学与工程项目的合作信件证明了他们对PI教育计划的支持。

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.