Collaborative Research: Influence of wind and bottom generated turbulence on air-sea gas exchange in shallow water environments

合作研究:风和底部产生的湍流对浅水环境中海气交换的影响

基本信息

  • 批准号:
    1829911
  • 负责人:
  • 金额:
    $ 28.28万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2018
  • 资助国家:
    美国
  • 起止时间:
    2018-10-01 至 2024-03-31
  • 项目状态:
    已结题

项目摘要

Air-sea transfers of energy and gases are critically important for predictions of short term weather, as well as long term climate trends. Over the past decades, considerable effort has been devoted to parameterizing these fluxes in terms of widely measured variables such as wind speed. However, these parameterizations are inadequate in shallow coastal regions where fetch, waves, and bottom-generated turbulence influence the physical mechanisms responsible for the air-sea fluxes, which have implications for our ability to understand important environmental processes such as coral reef metabolism or carbon cycling. Furthermore, shallow coastal water ecosystems are susceptible to anthropogenic pollution, leading to hypoxia or anoxia. In order to understand the future states of these ecosystems that are exposed to continued anthropogenic perturbations, biogeochemical budgets and fluxes have to be established, including exchanges across the air-water interface, i.e., they require quantitative knowledge of factors controlling gas exchange. This project will measure the air-sea gas fluxes and multiple physical variables contributing to their variability in a shallow coral reef. It is anticipated that the results from this study will yield improved understanding of the influence of physical processes such as wind, currents, waves on producing surface-, and bottom-driven turbulence, and how they control air-sea gas exchange in shallow coastal waters. They should also allow these processes to be parameterized in terms of easily measured environmental variables such as wind speeds, current velocities, and water depth. On a more local level, the PIs will continue their efforts toward disseminating scientific understanding in the field of physical and chemical oceanography by participating in undergraduate research opportunities, local science events targeted at K-12 students, and graduate student advising. This project will provide multidisciplinary training to two graduate students, and an undergraduate student.A series of experiments will be performed over two consecutive years on the barrier reef of Kane'ohe Bay, Hawaii to determine factors that control gas exchange in shallow ocean environments. During the experiment, gas transfer velocities will be measured with tracers (N2O, SF6, Rhodamine WT) and eddy covariance of CO2, along with concurrent measurements of processes such as wind, current, waves and turbulence. With the data collected in Kane'ohe Bay, the PIs will: (i) Assess when or whether it is valid to apply open ocean wind speed/gas exchange parameterizations toshallow water environments (ii) Improve our understanding of how physical processes such as wind, currents, waves interact with the shallow bottom to produce surface-, and bottom-driven turbulence (iii) Examine how surface and bottom generated turbulence control air-sea gas exchange in shallow coastal waters (iv) Parameterize gas exchange in shallow water environments in terms of easily measured environmental variables such as wind speeds, current velocities, and water depth.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.
能量和气体的海气传输对于短期天气和长期气候趋势的预测至关重要。在过去的几十年里,已经投入了相当大的努力,参数化这些通量的广泛测量的变量,如风速。然而,这些参数化是不够的,在浅水沿海地区的取风,波浪和底部产生的湍流影响的物理机制负责的海气通量,这对我们的能力,以了解重要的环境过程,如珊瑚礁代谢或碳循环的影响。此外,沿海浅水生态系统易受人为污染,导致缺氧或缺氧。为了了解这些生态系统在持续人为扰动下的未来状态,必须确定生物地球化学收支和通量,包括空气-水界面的交换,即,它们需要控制气体交换的因素的定量知识。该项目将测量海气通量和导致其在浅珊瑚礁中变化的多种物理变量。预计这项研究的结果将产生更好的了解物理过程,如风,电流,波浪对生产表面和底部驱动的湍流的影响,以及它们如何控制在沿海浅沃茨的海气交换。它们还应使这些过程能够根据容易测量的环境变量(如风速、流速和水深)进行参数化。在更多的地方层面上,PI将继续努力通过参与本科生研究机会,针对K-12学生的当地科学活动和研究生咨询来传播物理和化学海洋学领域的科学认识。该项目将为两名研究生和一名本科生提供多学科培训。将在夏威夷凯恩奥赫湾的堡礁上连续两年进行一系列实验,以确定控制浅海环境中气体交换的因素。在实验过程中,将用示踪剂(N2 O、SF6、罗丹明WT)和CO2涡动协方差测量气体传输速度,沿着风、流、波和湍流等过程的同时测量。根据在凯恩奥赫湾收集的数据,PI将:(一)评估何时或是否有必要对浅水环境采用开阔洋风速/气体交换参数化方法;(二)增进我们对风、海流、波浪等物理过程如何与浅水底部相互作用以产生表层-(iii)研究表面和底部产生的湍流如何控制沿海浅沃茨中的气-海气体交换(iv)根据容易测量的环境变量,如风速,流速,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

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David Ho其他文献

HIV tropism
人类免疫缺陷病毒嗜性
  • DOI:
    10.1038/361309b0
  • 发表时间:
    1993-01-28
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    John Moore;David Ho
  • 通讯作者:
    David Ho
ReadPrompt: A Readable Prompting Method for Reliable Knowledge Probing
ReadPrompt:一种用于可靠知识探究的可读提示方法
Abstract 19323: Disruption of Adenylyl Cyclase Type 5, a Novel Target for Obesity, Diabetes and Diabetic Cardiomyopathy
摘要 19323:5 型腺苷酸环化酶的破坏,肥胖、糖尿病和糖尿病心肌病的新靶标
  • DOI:
    10.1161/circ.126.suppl_21.a19323
  • 发表时间:
    2012
  • 期刊:
  • 影响因子:
    37.8
  • 作者:
    David Ho;Lin Yan;Xin Zhao;Claudio A. Bravo;W. Stanley;D. Vatner;J. Pessin;S. Vatner
  • 通讯作者:
    S. Vatner
Estimating Stage-Frequency Curves for Engineering Design in Small Ungauged Arctic Watersheds
未测量的小型北极流域工程设计阶段频率曲线的估计
  • DOI:
    10.3390/w16101321
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    3.4
  • 作者:
    Chandler Engel;Anna Wagner;Jeremy Giovando;David Ho;B. Morriss;Elias Deeb
  • 通讯作者:
    Elias Deeb
Abstract 17173: Caloric Restriction Protects Against Aging Cardiomyopathy, But Not Longevity
摘要 17173:热量限制可以预防老年性心肌病,但不能延长寿命
  • DOI:
  • 发表时间:
    2011
  • 期刊:
  • 影响因子:
    37.8
  • 作者:
    Lin Yan;Shumin Gao;David Ho;Hui Ge;Chunbo Wang;Yimin Tian;D. Vatner;S. Vatner
  • 通讯作者:
    S. Vatner

David Ho的其他文献

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{{ truncateString('David Ho', 18)}}的其他基金

Collaborative Research: Carbon Levels at the Arctic Salinity-Stratified Sea Ice Edge (CLASSSIE)
合作研究:北极盐度分层海冰边缘的碳水平(CLASSSIE)
  • 批准号:
    2141358
  • 财政年份:
    2022
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant
Collaborative Research: Investigating Bubble-Mediated Gas Exchange in a Strongly Convective Ocean during the Bubble Exchange in the Labrador Sea (BELS) Experiment
合作研究:在拉布拉多海气泡交换(BELS)实验期间调查强对流海洋中气泡介导的气体交换
  • 批准号:
    2219970
  • 财政年份:
    2022
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant
EAGER: Collaborative Research: Enhancing Asian American and Pacific Islander Participation and Belonging in the Geosciences
EAGER:合作研究:增强亚裔美国人和太平洋岛民对地球科学的参与和归属感
  • 批准号:
    2136233
  • 财政年份:
    2022
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant
Dual gas tracer measurements during the Central Baltic Sea Air-Sea Exchange Experiment (CenBASE)
波罗的海中部海气交换实验 (CenBASE) 期间的双气体示踪剂测量
  • 批准号:
    2123997
  • 财政年份:
    2021
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant
Collaborative Research: Influence of Surfactants on Air-Sea Gas Exchange: 3He/SF6 Experiments in the Baltic Sea
合作研究:表面活性剂对海气交换的影响:波罗的海的 3He/SF6 实验
  • 批准号:
    1756807
  • 财政年份:
    2018
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant
Collaborative Research: US GEOTRACES Arctic Section - Water mass composition, circulation and mean residence times derived from measurements of natural and manmade tracers
合作研究:美国 GEOTRACES 北极部分 - 根据天然和人造示踪剂的测量得出的水体成分、循环和平均停留时间
  • 批准号:
    1436125
  • 财政年份:
    2015
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Continuing Grant
WSC-Category 2 Collaborative: Robust decision-making for South Florida water resources by ecosystem service valuation, hydro-economic optimization, and conflict resolution modeling
WSC-2 类协作:通过生态系统服务评估、水文经济优化和冲突解决建模为南佛罗里达州水资源做出稳健决策
  • 批准号:
    1204572
  • 财政年份:
    2013
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant
Collaborative Research: Automated continuous measurement of CFC and SF6 saturations in surface waters
合作研究:自动连续测量地表水中的 CFC 和 SF6 饱和度
  • 批准号:
    1035515
  • 财政年份:
    2010
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant
Collaborative Research: WSC-Category 1 - Linking freshwater inputs to ecosystem functioning and services provided by a large mangrove estuary
合作研究:WSC-类别 1 - 将淡水输入与大型红树林河口提供的生态系统功能和服务联系起来
  • 批准号:
    1038855
  • 财政年份:
    2010
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant
Collaborative Research: Wind, Waves, Rain and their Effects on Air-Water Gas and Momentum Exchanges
合作研究:风、波浪、雨及其对空气-水气和动量交换的影响
  • 批准号:
    0930057
  • 财政年份:
    2009
  • 资助金额:
    $ 28.28万
  • 项目类别:
    Standard Grant

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Collaborative Research: Understanding the Influence of Turbulent Processes on the Spatiotemporal Variability of Downslope Winds in Coastal Environments
合作研究:了解湍流过程对沿海环境下坡风时空变化的影响
  • 批准号:
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