Collaborative Research: Autonomous eddy covariance air-sea CO2 flux system for moored buoys
合作研究:系泊浮标的自主涡协方差海海二氧化碳通量系统
基本信息
- 批准号:2319149
- 负责人:
- 金额:$ 49.06万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2023
- 资助国家:美国
- 起止时间:2023-09-01 至 2027-08-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Accurate prediction of carbon dioxide exchange between the atmosphere and oceans is an important earth system model requirement, but the exchange estimates in state-of-the-art climate models remain uncertain. One model factor that requires improvement is the rate of gas transfer across the air-sea interface, and the micrometeorological eddy covariance (EC) flux technique can provide field measurements needed to improve and validate transfer rate models across a broad range of wind and wave conditions. While the EC technique is widely employed on land, several technical hurdles have hindered wider adoption of this approach for CO2 flux data collection at sea, particularly on unattended floating platforms. Recent work by this team has demonstrated that fast-response closed-path CO2 sensors, central to the EC technique, can be modified to substantially reduce CO2 error due to ship and buoy motion effects. Under this new program, the team will further improve these sensors and also adapt approaches used for larger shipboard CO2 flux systems to develop a small, robust, accurate, and low power system suitable for use on a growing number of autonomous ocean observing platforms. The goals of this project are to 1) design, build and field-demonstrate a next generation infrared gas analyzer engineered to effectively remove motion interference that has plagued previous air-sea gas exchange field experiments, and 2) build and deploy a compact end-to-end eddy covariance CO2 flux system suitable for autonomous measurements through all weather conditions and on small ocean observing platforms where power demands must be minimized. Offshore buoy field demonstrations will be conducted near a long-term CO2 measurement site in the Gulf of Maine where supporting ocean and meteorological observations will provide data needed for sensor and system assessment and validation. The work will be performed using a team approach that formally partners industry, academia, and ocean observing system engineers. The project's final buoy-based flux measurement system will be designed in collaboration with NSF OOI to facilitate integration onto existing and future ocean observing platforms, paving a way for expanded at-sea direct covariance CO2 flux measurements to support a broad range of carbon cycle and air-sea interaction studies and applications.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.
准确预测大气和海洋之间的二氧化碳交换是地球系统模式的一项重要要求,但最先进的气候模式对交换的估计仍然不确定。需要改进的一个模型因子是气体在海气界面上的传输速率,而微气象涡旋相关(EC)通量技术可以提供所需的现场测量,以改进和验证在广泛的风和波条件下的传输速率模型。虽然EC技术在陆地上被广泛应用,但一些技术障碍阻碍了这种方法在海上,特别是无人值机的浮动平台上的二氧化碳通量数据收集的广泛采用。该团队最近的工作表明,快速响应的封闭路径二氧化碳传感器是EC技术的核心,可以通过修改来大幅减少由于船舶和浮标运动影响而产生的二氧化碳误差。在这个新项目中,该团队将进一步改进这些传感器,并适应用于大型船舶二氧化碳通量系统的方法,以开发一种小型、坚固、精确和低功耗的系统,适用于越来越多的自主海洋观测平台。该项目的目标是:1)设计、建造并现场演示下一代红外气体分析仪,该分析仪旨在有效消除困扰先前海气交换现场实验的运动干扰;2)建造并部署紧凑的端到端涡流相关CO2通量系统,适用于所有天气条件下的自主测量,以及必须将电力需求最小化的小型海洋观测平台。海上浮标现场演示将在缅因湾的一个长期二氧化碳测量地点附近进行,在那里支持海洋和气象观测将提供传感器和系统评估和验证所需的数据。这项工作将采用团队合作的方式,由工业界、学术界和海洋观测系统工程师正式合作完成。该项目的最终浮标通量测量系统将与NSF OOI合作设计,以促进与现有和未来海洋观测平台的整合,为扩大海上直接协方差二氧化碳通量测量铺平道路,以支持广泛的碳循环和海气相互作用研究和应用。该奖项反映了美国国家科学基金会的法定使命,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
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Douglas Vandemark其他文献
WV-Net: A foundation model for SAR WV-mode satellite imagery trained using contrastive self-supervised learning on 10 million images
WV-Net:SAR WV 模式卫星图像的基础模型,使用 1000 万张图像的对比自监督学习进行训练
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:0
- 作者:
Yannik Glaser;J. Stopa;Linnea M. Wolniewicz;Ralph Foster;Douglas Vandemark;A. Mouche;Bertrand Chapron;Peter Sadowski - 通讯作者:
Peter Sadowski
Douglas Vandemark的其他文献
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{{ truncateString('Douglas Vandemark', 18)}}的其他基金
Collaborative Research: Investigations of Wind-Driven Exchange and Long-Wave Modulation of Surface Fluxes Under Strong Wind Conditions Using OOI Data
合作研究:使用 OOI 数据研究强风条件下风驱动交换和表面通量的长波调制
- 批准号:
1829962 - 财政年份:2018
- 资助金额:
$ 49.06万 - 项目类别:
Standard Grant
Collaborative Research: A new system for air-sea CO2 flux measurements from moored and unmanned surface platforms
合作研究:用于从系泊和无人水面平台测量海气二氧化碳通量的新系统
- 批准号:
1737184 - 财政年份:2017
- 资助金额:
$ 49.06万 - 项目类别:
Standard Grant
Determining seasonal and interannual controls on air-sea carbon dioxide flux in a highly productive marginal sea
确定高产边缘海海气二氧化碳通量的季节和年际控制
- 批准号:
0851447 - 财政年份:2009
- 资助金额:
$ 49.06万 - 项目类别:
Standard Grant
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