carbonyl fluoride; IR observations; atmospheric composition
Abstract :
[en] Total vertical column abundances of carbonyl fluoride (COF2) have been derived from observations made at the International Scientific Station of the Jungfraujoch (ISSJ; altitude 3.58 km, latitude 46.5 degrees N, longitude 8.0 degrees E), Switzerland. A systematic analysis of two microwindows containing lines of the vi band was performed, based on a large set of high resolution infrared solar absorption spectra recorded with Fourier transform spectrometers, from 1985 to 1995. Examination of the whole available database indicates a significant increase of the burden of COF2 during the 1988-1995 period. The average exponential rate and the average linear rate referenced to 1992, calculated from daily mean measurements, are both equal to (4.0 +/- 0.5)% yr(-1) (one sigma error). The results are also evaluated and discussed within the context of seasonal variability and correlation between carbonyl fluoride and hydrogen fluoride (HF) columns above the ISSJ.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Mélen, F.
Mahieu, Emmanuel ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Zander, Rodolphe ; Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)
Rinsland, C. P.
Demoulin, Philippe ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Roland, Ginette
Delbouille, Luc
Servais, Christian ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Language :
English
Title :
Vertical column abundances of COF2 above the Jungfraujoch Station, derived from ground-based infrared solar observations
Delbouille, L. and Roland, G., 1995: High-resolution solar and atmospheric spectroscopy from the Jungfraujoch high-altitude station, Optical Eng. 34, 2736-2739.
Goldman, A., Murcray, F. J., Blatherwick, R. D., Kosters, J. J., Murcray, F. H., and Murcray, D. G., 1989: New spectral features of stratospheric trace gases identified from high-resolution infrared balloon-borne and laboratory spectra, J. Geophys. Res. 94, 14,945-14,955.
Kanakidou, M., Dentener, F. J., and Crutzen, P. J., 1995: A global three-dimensional study of the fate of HCFCs and HFC-134a in the troposphere, J. Geophys. Res. 100, 18,781-18,801.
Kaye, J. A., Douglass, A. R., Jackman, C. H., Stolarski, R. S., Zander, R., and Roland, G., 1991: Two-dimensional model calculation of fluorine-containing reservoir species in the stratosphere, J. Geophys. Res. 96, 12,865-12,881.
Ko, M. K. W., Sze, N. D., and Weistenstein, D. K., 1989: The roles of dynamical and chemical processes in determining the stratospheric concentration of ozone in one-dimensional and two-dimensional models, J. Geophys. Res. 94, 9889-9896.
Ko, M. K. W., Sze, N. D., Rodriguez, J. M., Weistenstein, D. K., Heisey, C. W., Wayne, R. P., Biggs, P., Canosa-Mas, C. E., Sidebottom, H. W., and Treacy, J., 1994: CF3 chemistry: potential implications for stratospheric ozone, Geophys. Res. Lett. 21, 101-104.
Notholt, J., Meier, A., and Peil, S., 1995: Total column densities of tropospheric and stratospheric trace gases in the undisturbed arctic summer atmosphere, J. Atmos. Chem. 20, 311-332.
Reisinger, A. R., Jones, N. B., Matthews, W. A., and Rinsland, C. P., 1994: Southern hemisphere ground based measurements of carbonyl fluoride (COF2) and hydrogen fluoride (HF): partitioning between fluoride reservoir species, Geophys. Res. Lett. 21, 797-800.
Rinsland, C. P., Zander, R., Brown, L. R., Farmer, C. B., Park, J. H., Norton, R. H., Russell, J. M. III, and Raper, O. F., 1986: Detection of carbonyl fluoride in the stratosphere, Geophys. Res. Lett. 13, 769-772.
Rinsland, C. P., Goldman, A., Murcray, F. J., Blatherwick, R. D., Kosters, J. J., Murcray, D. G., Sze, N. D., and Massie, S. T., 1990: Long-term trends in the concentrations of SF6, CHClF2, and COF2 in the lower stratosphere from analysis of high-resolution infrared solar occultation spectra, J. Geophys. Res. 95, 16,477-16,490.
Rinsland, C. P., Zander, R., and Demoulin, P., 1991a: Ground-based infrared measurements of HNO3 total column abundances: long-term trend and variability, J. Geophys. Res. 96, 9,379-9,389.
Rinsland, C. P., Levine, J. S., Goldman, A., Sze, N. D., Ko, M. K. W., and Johnson, D. W., 1991b: Infrared measurements of HF and HC1 total column abundances above Kitt Peak, 1977-1990: seasonal cycles, long-term increases, and comparisons with model calculations, J. Geophys. Res. 96, 15,523-15,540.
Rinsland, C. P., Goldman, A., and Flaud, J.-M., 1992: Infrared spectroscopic parameters of COF2, SF6, ClO, N2, and O2, J. Quant. Spectrosc. Radiat. Transfer 48, 693-699.
Rothman, L. S., Gamache, R. R., Tipping, R. H., Rinsland, C. P., Smith, M. A. H., Benner, D. C., Malathy Devi, V., Flaud, J.-M., Camy-Peyret, C., Perrin, A., Goldman, A., Massie, S. T., Brown, L. R., and Toth, R. A., 1992: The HITRAN molecular database: editions of 1991 and 1992, J. Quant. Spectrosc. Radiat. Transfer 48, 469-507.
Sen, B., Toon, G. C., Blavier, J.-F., Fleming, E. L., and Jackman, C. H., 1996: Balloon-borne observations of midlatitude fluorine abundance, J. Geophys. Res. 101, 9,045-9,054.
Tuazon, E. C. and Atkinson, R., 1993: Tropospheric transformation products of a series of hydrofluorocarbons and hydrochlorofluorocarbons, J. Atmos. Chem. 17, 179-199.
U.S. Standard Atmosphere Supplements, 1966: U.S. Government Printing Office, Washington, D.C., 20402.
U.S. Standard Atmosphere, 1976: U.S. Government Printing Office, Washington, D.C., 20402.
Weiss, W., Sittkus, A., Stockburger, H., and Sartorius, H., 1983: Large-scale atmospheric mixing derived from meridional profiles of krypton 85, J. Geophys. Res. 88, 8,574-8,578.
Wilson, S. R., Schuster, G., and Helas, G., 1989: Measurements of COFCl and CCl2O near the tropopause, in R. D. Bojkov and P. Fabian (eds), Ozone in the Atmosphere, A. Deepak Publisher, pp. 302-305.
Zander, R., Gunson, M. R., Farmer, C. B., Rinsland, C. P., Irion, F. W., and Mahieu, E., 1992: The 1985 chlorine and fluorine inventories in the stratosphere based on ATMOS observations at 30° north latitude, J. Atmos. Chem. 15, 171-186.
Zander, R., Rinsland, C. P., Mahieu, E., Gunson, M. R., Farmer, C. B., Abrams, M. C., and Ko, M. K. W., 1994: Increase of carbonyl fluoride (COF2) in the stratosphere and its contribution to the 1992 budget of inorganic fluorine in the upper stratosphere, J. Geophys. Res. 99, 16,737-16,743.
