Collaborative Research: Autonomous pH and Alkalinity Sensors: in situ Testing and Carbon Cycle Research
合作研究:自主 pH 和碱度传感器:原位测试和碳循环研究
基本信息
- 批准号:0628569
- 负责人:
- 金额:$ 55.06万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2006
- 资助国家:美国
- 起止时间:2006-10-01 至 2010-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The earth's carbon cycle has been dramatically altered by global human industrialization. The movement of carbon from ancient fossil deposits to the atmosphere and into marine and terrestrial biospheres has many consequences, few of which are currently fully understood or predictable. Much of the needed understanding of the carbon cycle may come from better observational methods that can characterize large spans of time or space. One group of observational methods, autonomous sensors, can provide high temporal resolution data within air, earth or water systems. In this research, PIs from the University of Montana, Oregon State University and University of Miami will develop and use autonomous sensors to advance our understanding of carbon cycling within the earth's biosphere. With prior support, they have developed sensors for the partial pressure of CO2 (pCO2), pH and total alkalinity that can be used to quantify the amount of dissolved inorganic carbon through thermodynamic relationships. The more recently developed, currently laboratory-based sensors (pH and alkalinity) will be further refined for subsequent deployment, along with the more mature pCO2 sensor, in two contrasting marine environments; the coastal ocean waters off the U.S. central west coast, and a shallow coral ecosystem in Puerto Rico. Field studies will begin with a short, in situ test off Oregon State University's pier in Newport, Oregon followed by deployment on the Oregon shelf to study the processes that control air-sea carbon dioxide fluxes during periods of coastal upwelling. Concurrently, the same sensors will be deployed in La Parguera Marine Reserve, Puerto Rico, a Coral Reef Early Warning System (CREWS) site operated by NOAA to focus on the relationship of calcium carbonate saturation states to calcification rates in a coral reef ecosystem. The project will have a number of broad impacts including the technological development of rigorously tested sensors that will have a wide range of applications in marine and freshwater research. Students will be trained in the area of chemical sensor development who will subsequently become the next generation of leaders in this important research area. Outreach activities related to the grant will create awareness for contemporary carbon cycle issues such as greenhouse gas warming and ocean acidification.
地球的碳循环已经被全球人类工业化极大地改变了。碳从古代化石沉积物向大气层和海洋和陆地生物圈的移动有许多后果,其中很少有目前完全理解或预测的。对碳循环的大部分必要了解可能来自更好的观测方法,这些方法可以表征大的时间或空间跨度。一组观测方法,即自主传感器,可以提供空气、地球或水系统内的高时间分辨率数据。 在这项研究中,来自蒙大拿大学、俄勒冈州州立大学和迈阿密大学的PI将开发和使用自主传感器,以促进我们对地球生物圈内碳循环的理解。在先前的支持下,他们开发了用于CO2分压(pCO2),pH值和总碱度的传感器,可用于通过热力学关系量化溶解的无机碳的量。最近开发的、目前基于实验室的传感器(pH值和碱度)将进一步完善,以便随后与更成熟的pCO2传感器一起沿着部署在两个对比鲜明的海洋环境中:美国中西部海岸的沿海海洋沃茨和波多黎各的浅水珊瑚生态系统。实地研究将开始,首先在俄勒冈州纽波特的俄勒冈州州立大学码头附近进行一次简短的现场测试,然后在俄勒冈州大陆架上进行部署,以研究沿海上升流期间控制海气二氧化碳通量的过程。与此同时,将在波多黎各的La Parguera海洋保护区部署同样的传感器,这是一个由美国海洋和大气管理局运营的珊瑚礁预警系统站点,重点关注碳酸钙饱和状态与珊瑚礁生态系统钙化率之间的关系。该项目将产生若干广泛影响,包括经过严格测试的传感器的技术开发,这些传感器将在海洋和淡水研究中有广泛的应用。 学生将接受化学传感器开发领域的培训,他们将成为这一重要研究领域的下一代领导者。 与赠款有关的外联活动将提高人们对温室气体变暖和海洋酸化等当代碳循环问题的认识。
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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Michael DeGrandpre其他文献
Michael DeGrandpre的其他文献
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{{ truncateString('Michael DeGrandpre', 18)}}的其他基金
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$ 55.06万 - 项目类别:
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$ 55.06万 - 项目类别:
Standard Grant
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1504410 - 财政年份:2016
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$ 55.06万 - 项目类别:
Standard Grant
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1459255 - 财政年份:2015
- 资助金额:
$ 55.06万 - 项目类别:
Standard Grant
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$ 55.06万 - 项目类别:
Standard Grant
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1107346 - 财政年份:2011
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$ 55.06万 - 项目类别:
Standard Grant
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$ 55.06万 - 项目类别:
Standard Grant
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$ 55.06万 - 项目类别:
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- 批准号:
0529557 - 财政年份:2005
- 资助金额:
$ 55.06万 - 项目类别:
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