Wavy turbulent flow over a coral reef: vertical structure and fluxes

珊瑚礁上的波浪状湍流：垂直结构和通量

• 批准号: 1948189
• 负责人: Stephen Monismith
• 金额: $ 54.33万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-02-15 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1948189&HistoricalAwards=false
• 关键词: Wavy; turbulent; flow; over; coral

In this project, a field experiment will be conducted to observe turbulent flow over a coral reef in Palau. The reef site was chosen to be accessible and represent wave influenced flow so that current models of turbulent fluxes can be tested. The project also includes a numerical modeling component to test the theoretical ideas. The research has the potential to improve modeling and prediction for the biogeochemical fluxes over coral reefs, which are sensitive to a range of environmental change factors. The project also includes educational outreach to high school students in California and Palau, to learn about environmental flow over reefs.This project will test the validity of the “law of the wall” for turbulent flow over a rough surface in the presence of surface gravity waves. Instrumentation for measuring the flow field and inferring turbulent momentum and energy fluxes as well as dissolved oxygen fluxes over the reef will be deployed twice over a two-year period. Idealized modeling of flow over the reef will also be used. The project will advance the state of the art for oceanic turbulence modeling and apply it to coral reefs which are notably under threat from environmental changes.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在这个项目中，将进行一项实地实验，观察帕劳珊瑚礁上空的湍流。选择的珊瑚礁网站是可访问的，并代表波影响流，使目前的湍流通量模型可以进行测试。该项目还包括一个数值建模组件，以测试理论思想。该研究有可能改善珊瑚礁的生物地球化学通量的建模和预测，这是敏感的一系列环境变化因素。该项目还包括对加州和帕劳的高中生进行教育宣传，以了解珊瑚礁上的环境流，该项目将测试在表面重力波存在的情况下，粗糙表面上湍流的“壁定律”的有效性。将在两年期间部署两次用于测量流场和推断湍流动量和能量通量以及珊瑚礁上方溶解氧通量的仪器。还将使用理想化的珊瑚礁水流模型。该项目将推进海洋湍流建模的最新技术，并将其应用于受到环境变化威胁的珊瑚礁。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

How Consistent Are Estimates of Roughness Parameters on a Rough Coral Reef?

• DOI: 10.1029/2021jc017825
• 发表时间: 2021-12-01
• 期刊: JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
• 影响因子: 3.6
• 作者: Lindhart, M.;Monismith, S. G.;Dunbar, R.
• 通讯作者: Dunbar, R.

The Effects of Light Intensity and Flow Speed on Biogeochemical Variability Within a Fringing Coral Reef in Onna‐Son, Okinawa, Japan

光强度和流速对日本冲绳恩纳村边缘珊瑚礁生物地球化学变化的影响

• DOI: 10.1029/2021jc018369
• 发表时间: 2022
• 期刊: Journal of Geophysical Research: Oceans
• 作者: Rintoul, M. S.;Courtney, T. A.;Dohner, J. L.;Giddings, S. N.;Kekuewa, S. A.;Mitarai, S.;Monismith, S. G.;Pezner, A. K.;Andersson, A. J.
• 通讯作者: Andersson, A. J.

Reef Flat Flow Dynamics for a Nearly Closed Fringing Reef Lagoon: Ofu, American Samoa

• DOI: 10.1029/2022jc018831
• 发表时间: 2022-10-01
• 期刊: JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
• 影响因子: 3.6
• 作者: Maticka, Samantha A.;Rogers, Justin S.;Monismith, Stephen G.
• 通讯作者: Monismith, Stephen G.

Vertical structure of flows on a shallow reef flat: A coral reef surf zone

浅礁滩上水流的垂直结构：珊瑚礁冲浪区

• DOI: 10.1016/j.coastaleng.2024.104499
• 发表时间: 2024
• 期刊: Coastal Engineering
• 影响因子: 4.4
• 作者: Monismith, Stephen G.;Maticka, Samantha A.;Rogers, Justin S.;Hefner, Ben;Woodson, C. Brock
• 通讯作者: Woodson, C. Brock

Wave Modulation of Flows on Open and Closed Reefs

• DOI: 10.1029/2020jc016645
• 发表时间: 2021-04-01
• 期刊: JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
• 影响因子: 3.6
• 作者: Lindhart, M.;Rogers, J. S.;Monismith, S. G.
• 通讯作者: Monismith, S. G.