Publication


R. Nassar, et al.
A global inventory of stratospheric fluorine in 2004 based on Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) measurements
Journal of Geophysical Research: Atmospheres, 111(22), D22313, 2006; doi: 10.1029/2006JD007395
C2Cl3F2 Middle atmosphere Atmosphere Climate change variability fluorine stratosphere
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Abstract


[1] Total fluorine (FTOT) in the stratosphere has been determined using Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) measurements of HF, COF2, COClF, CF4, CCl3F (CFC-11), CCl2F2 (CFC-12), CHClF2 (HCFC-22), CCl2FCClF2 (CFC-113), CH3CClF2 (HCFC-142b), CH2FCF3 (HFC-134a), and SF6. The retrieval of HFC-134a (CH2FCF3) from spaceborne measurements had not been carried out prior to this work. Measurements of these species have been supplemented by data from models to extend the altitude range of the profiles and have also been complemented by estimates of 15 minor fluorine species. Using these data, separate fluorine budgets were determined in five latitude zones (60°–82°N, 30°–60°N, 30°S–30°N, 30°–60°S, and 60°–82°S) by averaging over the period of February 2004 to January 2005 inclusive, when possible. Stratospheric FTOT profiles in each latitude zone are nearly linear, with mean stratospheric FTOT values ranging from 2.50 to 2.59 ppbv (with a 1σ precision of 0.04–0.07 ppbv and an estimated accuracy of 0.15 ppbv) for each zone. The highest mean FTOT value occurred in the tropics, which is qualitatively consistent with increasing levels of stratospheric fluorine and the mean stratospheric circulation pattern.

Reference


@article{JGRD:JGRD13125,
  author = "R. Nassar and P. F. Bernath and C. D. Boone and S. D. McLeod and R. Skelton and K. A. Walker and C. P. Rinsland and P. Duchatelet",
  title = "A global inventory of stratospheric fluorine in 2004 based on Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) measurements",
  year = 2006,
  journal = "Journal of Geophysical Research: Atmospheres",
  volume = 111,
  number = 22,
  pages = "D22313",
  month = "Nov",
  keywords = "C2Cl3F2, Middle atmosphere, Atmosphere, Climate change, variability, fluorine, stratosphere",
  doi = "10.1029/2006JD007395",
  url = "http://dx.doi.org/10.1029/2006JD007395"
}
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