ICCR: Long-term Quality Assured Atmospheric Carbon Dioxide (CO2) Measurements

ICCR：长期质量保证的大气二氧化碳 (CO2) 测量

• 批准号: 0223234
• 负责人: Charles Keeling
• 金额: $ 66.3万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2006-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0223234&HistoricalAwards=false
• 关键词: ICCR; Long; term; Quality; Assured

This project involves a collaboration between the Scripps Institution of Oceanography (SIO) and the Climate Monitoring and Diagnostics Laboratory (CMDL) of the National Oceanic and Atmospheric Administration (NOAA) to create a single scale for reporting the concentration of atmospheric carbon dioxide (CO2) from the two laboratories so that the CO2 data can be compared without instrumental bias. Since 1956, SIO has maintained a global-scale program to measure the abundance of atmospheric CO2, calibrated with secondary standards using a constant-volume mercury-column manometer (CMM). From 1972 to 1995, the World Meteorological Organization designated SIO as the Central CO2 Laboratory for maintaining standard reference materials (SRM) for CO2 measurements worldwide. In 1995 this designation was transferred to CMDL. The calibration standards of the two institutions have not been reconciled since this transfer and this reconciliation is the focus of this effort. NOAA will support the CMDL part. The broader impacts of this work will be improved accuracy of several time-series measurements of atmospheric concentrations of carbon dioxide.

该项目涉及斯克里普斯海洋学研究所（SIO）和国家海洋和大气管理局（NOAA）气候监测和诊断实验室（CMDL）之间的合作，以创建一个单一的尺度来报告两个实验室的大气二氧化碳（CO2）浓度，以便可以在没有仪器偏差的情况下比较CO2数据。 自1956年以来，SIO一直保持着一个全球规模的计划，以测量大气CO2的丰度，使用恒容汞柱压力计（CMM）进行二级标准校准。 从1972年到1995年，世界气象组织指定SIO为中央CO2实验室，负责维护全球CO2测量的标准参考物质（SRM）。 1995年，这一名称被转移到CMDL。 自此次转移以来，尚未对两个机构的校准标准品进行核对，此次核对是本次工作的重点。 NOAA将支持CMDL部分。 这项工作的更广泛影响将是提高对大气中二氧化碳浓度的若干时间序列测量的准确性。