Using eddy correlation to measure oxygen flux as an indicator of the health of aquatic systems
使用涡相关测量氧通量作为水生系统健康状况的指标
基本信息
- 批准号:RTI-2022-00200
- 负责人:
- 金额:$ 5.39万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Research Tools and Instruments
- 财政年份:2021
- 资助国家:加拿大
- 起止时间:2021-01-01 至 2022-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Water transports dissolved gases (e.g., oxygen; O2), nutrients, and other chemicals to and from river and lake sediments and aquatic organisms, as well as imparting hydrodynamic forces on them. Understanding the fate and transfer of dissolved O2 through biological and biogeochemical processes is essential to understanding the functioning of aquatic ecosystems as well as their remediation/recovery. The eddy correlation technique, which measures O2 concentration in the smallest turbulent, provides an accurate measurement of O2 flux. Measuring oxygen flux using eddy correlation is essential to achieve these goals, but my existing eddy correlation system (RTI funded in 2007) is obsolete and beyond repair. This has limited the research opportunities available to members of my lab. To restore this essential capacity to my lab, I am requesting support to purchase a replacement eddy correlation system. The requested system uses a fibre--optic oxygen sensor to measure O2 along with a fast response PAR light logger, multiparameter sonde, and an acoustic Doppler current profiler to measure environmental conditions during eddy correlation measurements. The requested system uses optical--based oxygen sensors, which are more robust and less stirring sensitive than the electrochemical sensors used in older, now-obsolete models. Consequently, the new system will significantly advance our ability to examine the fate and transfer of a key biogeochemical constituent in aquatic environments. The proposed eddy correlation system is urgently needed by my research program. Without it, we are unable to determine the causes of low oxygen levels (hypoxia) in lakes, the health of endangered freshwater mussel species, and the productivity of aquatic vegetation. Moreover, we are not able to advance our ecohydrological models from the laboratory to the field. The proposed equipment is essential to my NSERC Discovery research program and will support important collaborations with research partners in provincial and federal agencies. These activities are of particular importance because of concerns about declining water quality (e.g., hypoxia or low oxygen), and demands to restore these aquatic ecosystems to provide economic and ecological benefits to Canadians.
水输送溶解的气体(例如,氧气; O2)、营养物和其他化学物质进出河流和湖泊沉积物和水生生物,以及对它们施加水动力。了解溶解O2通过生物和地球化学过程的命运和转移对于了解水生生态系统的功能以及修复/恢复至关重要。涡流相关技术,它测量O2浓度在最小的湍流,提供了一个精确的测量O2通量。使用涡流相关测量氧通量对于实现这些目标至关重要,但我现有的涡流相关系统(RTI于2007年资助)已经过时,无法修复。这限制了我实验室成员的研究机会。 为了恢复我的实验室的基本能力,我请求支持购买替代涡流相关系统。所要求的系统使用一个光纤氧传感器来测量O2沿着与快速响应PAR光记录仪,多参数探测器,和一个声学多普勒电流剖面测量环境条件在涡流相关测量。所要求的系统使用基于光学的氧传感器,与旧的、现已过时的型号中使用的电化学传感器相比,这种传感器更耐用,搅拌敏感性更低。因此,新的系统将大大提高我们的能力,检查的命运和转移的一个关键的生物地球化学成分在水生环境中。 本文所提出的涡流相关系统是我的研究项目所急需的。没有它,我们就无法确定湖泊中低氧水平(缺氧)的原因,濒危淡水贻贝物种的健康以及水生植被的生产力。此外,我们不能推进我们的生态水文模型从实验室到现场。拟议中的设备对我的NSERC发现研究计划至关重要,并将支持与省级和联邦机构研究伙伴的重要合作。这些活动特别重要,因为人们对水质下降感到关切(例如,缺氧或低氧),并要求恢复这些水生生态系统,为加拿大人提供经济和生态效益。
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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Ackerman, Josef其他文献
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{{ truncateString('Ackerman, Josef', 18)}}的其他基金
Unsteady hydrodynamic conditions and biological/biogeochemical processes
非稳态水动力条件和生物/生物地球化学过程
- 批准号:
RGPIN-2022-04337 - 财政年份:2022
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
The effect of unsteady turbulent flows on mass transfer in aquatic environments
非定常湍流对水生环境中传质的影响
- 批准号:
RGPIN-2015-05680 - 财政年份:2021
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
The effect of unsteady turbulent flows on mass transfer in aquatic environments
非定常湍流对水生环境中传质的影响
- 批准号:
RGPIN-2015-05680 - 财政年份:2020
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
The effect of unsteady turbulent flows on mass transfer in aquatic environments
非定常湍流对水生环境中传质的影响
- 批准号:
RGPIN-2015-05680 - 财政年份:2019
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
The effect of unsteady turbulent flows on mass transfer in aquatic environments
非定常湍流对水生环境中传质的影响
- 批准号:
RGPIN-2015-05680 - 财政年份:2018
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
The effect of unsteady turbulent flows on mass transfer in aquatic environments
非定常湍流对水生环境中传质的影响
- 批准号:
RGPIN-2015-05680 - 财政年份:2017
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
Measurement of mass transfer in rivers and shallow waters
河流和浅水区传质测量
- 批准号:
RTI-2018-00249 - 财政年份:2017
- 资助金额:
$ 5.39万 - 项目类别:
Research Tools and Instruments
The effect of unsteady turbulent flows on mass transfer in aquatic environments
非定常湍流对水生环境中传质的影响
- 批准号:
RGPIN-2015-05680 - 财政年份:2016
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
The effect of unsteady turbulent flows on mass transfer in aquatic environments
非定常湍流对水生环境中传质的影响
- 批准号:
RGPIN-2015-05680 - 财政年份:2015
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
Mass transport in aquatic environments
水生环境中的大众运输
- 批准号:
170457-2008 - 财政年份:2014
- 资助金额:
$ 5.39万 - 项目类别:
Discovery Grants Program - Individual
相似海外基金
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合作研究:用于水生环境中氧通量测量的稳健的基于光极的涡流相关系统
- 批准号:
1334117 - 财政年份:2014
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Continuing Grant
Collaborative Research: Robust optode-based eddy correlation systems for oxygen flux measurements in aquatic environments
合作研究:用于水生环境中氧通量测量的稳健的基于光极的涡流相关系统
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EAGER: Development of a Novel High-Resolution O2/H+ Eddy Correlation Technique to Study Carbon Cycling in the Coastal Ocean
EAGER:开发新型高分辨率 O2/H 涡流相关技术来研究沿海海洋碳循环
- 批准号:
1361514 - 财政年份:2013
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Standard Grant
Continental Shelf Benthic Oxygen Fluxes Determined by Eddy Correlation in the Presence of Wave Motions
存在波浪运动时通过涡相关确定的大陆架底栖氧通量
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1061218 - 财政年份:2011
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Collaborative Research: Eddy Correlation and chamber measurements of benthic oxygen fluxes in permeable sediments
合作研究:可渗透沉积物中底栖氧通量的涡流相关和室测量
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Collaborative Research: Eddy Correlation and chamber measurements of benthic oxygen fluxes in permeable sediments
合作研究:可渗透沉积物中底栖氧通量的涡流相关和室测量
- 批准号:
1061110 - 财政年份:2011
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Eddy correlation lander array
涡相关着陆器阵列
- 批准号:
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合作研究:通过涡相关研究二氧化碳、二甲硫醚和丙酮的空气/海洋气体交换
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0851068 - 财政年份:2009
- 资助金额:
$ 5.39万 - 项目类别:
Standard Grant
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合作研究:通过涡相关研究二氧化碳、二甲硫醚和丙酮的空气/海洋气体交换
- 批准号:
0851407 - 财政年份:2009
- 资助金额:
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