Reference : The 1994 northern midlatitude budget of stratospheric chlorine derived from ATMOS/ATL...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/14566
The 1994 northern midlatitude budget of stratospheric chlorine derived from ATMOS/ATLAS-3 observations
English
Zander, Rodolphe mailto [Université de Liège - ULg > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
Mahieu, Emmanuel mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS) >]
Gunson, M. R. [> > > >]
Abrams, M. C. [> > > >]
Chang, A. Y. [> > > >]
Abbas, M. [> > > >]
Aellig, C. [> > > >]
Engel, A. [> > > >]
Goldman, A. [> > > >]
Irion, F. W. [> > > >]
Kämpfer [> >]
Michelsen, H. A. [> > > >]
Newchurch, M. J. [> > > >]
Rinsland, C. P. [> > > >]
Salawitch, R. J. [> > > >]
Stiller, G. P. [> > > >]
Toon, G. C. [> > > >]
15-Aug-1996
Geophysical Research Letters
American Geophysical Union
23
17
2357-2360
Yes (verified by ORBi)
International
0094-8276
Washington
DC
[en] atmospheric composition ; chlorine budget ; Montreal Protocol ; ATMOS instrument ; remote sensing ; infrared spectroscopy
[en] Volume mixing ratio (VMR) profiles of the chlorine-bearing gases HCl, ClONO2, CCl3F, CCl2F2, CHClF2, CCl4, and CH3Cl have been measured between 3 and 49 degrees northern- and 65 to 72 degrees southern latitudes with the Atmospheric Trace MOlecule Spectroscopy (ATMOS) instrument during the ATmospheric Laboratory for Applications and Science (ATLAS)-3 shuttle mission of 3 to 12 November 1994. A subset of these profiles obtained between 20 and 49 degrees N at sunset, combined with ClO profiles measured by the Millimeter-wave Atmospheric Sounder (MAS) also from aboard ATLAS-3, measurements by balloon for HOCl, CH3CCl3 and C2Cl3F3, and model calculations for COClF indicates that the mean burden of chlorine, Cl-TOT, was equal to (3.53 +/- 0.10) ppbv (parts per billion by volume), 1-sigma, throughout the stratosphere at the time of the ATLAS 3 mission. This is some 37% larger than the mean 2.58 ppbv value measured by ATMOS within the same latitude zone during the Spacelab 3 flight of 29 April to 6 May 1985, consitent with an exponential growth rate of the chlorine loading in the stratosphere equal to 3.3%/yr or a linear increase of 0.10 ppbv/yr over the Spring-1985 to Fall-1994 time period. These findings are in agreement with both the burden and increase of the main anthropogenic Cl-bearing source gases at the surface during the 1980s, confirming that the stratospheric chlorine loading is primarily of anthropogenic origin.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/14566
http://www.agu.org/pubs/crossref/1996/96GL01792.shtml

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