Chlorofluorocarbon-11, -12, and Nitrous Oxide Measurements at the NOAA/GMCC (National Oceanic and Atmospheric Administration/Geophysical Monitoring for Climatic Change) Baseline Stations (16 September 1973 to 31 December 1979)

摘要

The National Oceanic and Atmospheric Administration's Air Resources Laboratory (NOAA/ARL) began measuring chlorofluorocarbon-11 in 1973 because of the interest in this anthropogenic pollutant as a tracer for the study of mass transfer processes in the atmosphere and the oceans. Interest in chlorofluorocarbon-11, and in chlorofluorocarbon-12 and nitrous oxide, was heightened during the mid-1970's with the realization that these compounds can be decomposed by photolysis in the stratosphere to cause stratospheric ozone destruction by released chlorine atoms. Measurements of chlorofluorocarbon-12 and nitrous oxide were begun by NOAA/ARL in 1977. The report describes the evolution of the chlorofluorocarbon and N2O measurement programs through 1979. By that time, the sample collection and analysis techniques became standardized, and have remained the same to the present.