Time-Series Measurements of CO2 on the JGOFS Cruises in the Central Equatorial Pacific Along 140 Degrees West

JGOFS 游轮在中赤道太平洋沿西经 140 度的二氧化碳时间序列测量

• 批准号: 9115317
• 负责人: Catherine Goyet
• 金额: $ 27.07万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-10-15 至 1994-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9115317&HistoricalAwards=false
• 关键词: Time; Series; Measurements; CO2; JGOFS

Three of the four carbon chemistry properties in seawater will be determined during the JGOFS time-series expeditions in the Central Equatorial Pacific Ocean, which have been scheduled for March 1992 and November 1992, a total of 67 days at sea. The total inorganic carbon concentration will be determined using an automated coulometric system; the CO2 fugacity using an equilibrator/infra-red procedure; and the total alkalinity using the potentiometric acid titration. The total inorganic carbon and the total alkalinity will be measured at sea in discrete seawater samples collected throughout the water column at the time-series stations. Furthermore, the measurement of these three parameters in surface seawater will provide the means to critically evaluate the consistency and reliability of each of these data sets. The accuracy of both total CO2 and total alkalinity will be controlled by measuring reference solutions by A. Dickson. The processed data will be (1) quality controlled according to the criteria that soon will be established by the DOE sponsored committee responsible for CO2 data quality management, (2) tabulated and added to the JGOFS data base for distribution to the scientific community, and (3) used in conjunction with associated measurements both to give a descriptive account of the results and to quantify the processes involved in the spatiotemporal variations of the properties of the oceanic carbon cycle.

海水中四种碳化学性质中的三种将 在联合全球海洋观测系统时间序列考察期间确定的 中赤道太平洋，已定于 1992年3月和1992年11月，共计67天在海上。 总无机碳浓度将使用 一个自动库仑系统;使用 平衡/红外程序;和总碱度使用 电位酸滴定法。 总无机碳 总碱度将在海上测量， 海水样本在整个水柱中收集， 时间序列站 此外，这些测量 表层海水中的三个参数将提供一种方法， 批判性地评估每一个的一致性和可靠性， 这些数据集。 CO2总量和总排放量的准确性 通过测量参比溶液控制碱度， A.迪克森 处理后的数据将（1）根据以下内容进行质量控制： 美国能源部不久将制定的标准 负责CO2数据质量管理的委员会（2） 制成表格并添加到JGOFS数据库，以便分发给 科学界，（3）与 相关的测量都给出了一个描述性的帐户 结果和量化的过程中所涉及的 海洋碳性质的时空变化 周期