The quality control of oceanic carbon dioxide measurements: preparation and distribution of reference materials

GSTDTAP

项目编号	1657799
	The quality control of oceanic carbon dioxide measurements: preparation and distribution of reference materials
	Andrew Dickson
主持机构	University of California-San Diego Scripps Inst of Oceanography
项目开始年	2017
	2017-04-01
项目结束日期	2020-03-31
资助机构	US-NSF
项目类别	Continuing grant
项目经费	166115(USD)
国家	美国
语种	英语
英文摘要	The goal of this project is to continue to provide a mechanism for the quality control of ocean carbon dioxide measurements, in particular those that are made as part of international global programs. This will help to ensure that such measurements are comparable and accurate although made in different laboratories at different times, and will be an important factor in the design of a Global Ocean Observing System such as the proposed Global Ocean Acidification Observation Network, as well as playing a significant role in the quality control of ocean acidification measurements. To achieve this goal, the Scripps laboratory will prepare and certify reference materials for the following parameters of the oceanic carbon dioxide system in seawater: total dissolved inorganic carbon, total alkalinity, and hydrogen ion concentration, pH. The reference materials for total dissolved inorganic carbon and for total alkalinity will be based on natural seawater, sterilized, bottled, and analyzed using appropriate reference methods for these parameters. Reference materials for pH will be based on Tris buffers in synthetic seawater whose pH is directly related to measurements using classical Harned cells. In addition, the laboratory will distribute calibrated acid titrant for alkalinity measurements. The provision of reference materials to the international community helps to improve the overall quality of oceanic carbon data around the world both for field studies of the distribution of oceanic carbon, as well as for studies related to ocean acidification. Thus this effort is a significant US contribution to research infrastructure in this field.
来源学科分类	Geosciences - Ocean Sciences
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/70921
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Andrew Dickson.The quality control of oceanic carbon dioxide measurements: preparation and distribution of reference materials.2017.