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Long-term evolution of the loading of CH4, N2O, CO, CCl2F2, CHClF2 and SF6 above Central Europe during the last 15 years
Zander, Rodolphe; Mahieu, Emmanuel; Demoulin, Philippe et al.
2000In J. van Ham (Ed.) Non-CO2 greenhouse gases: scientific understanding, control and implementation
Peer reviewed
 

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Keywords :
greenhouse gases; atmospheric composition; long-term trends
Abstract :
[en] Long-term monitoring activities of some 20 atmospheric constituents are continuing at the International Scientific Station of the Jungfraujoch, Switzerland, based on remote infra-red solar observations with high spectral resolution Fourier transform spectrometers. As a contribution to non-CO2 greenhouse gas investigations, we report the trends observed in the vertical column abundances measured regularly since the mid-1980s for CH4, N2O, CO, CCl2F2, CHClF2 and SF6. With the exception of CO, all species show positive rates of change in their near past atmospheric loading, those of CH4, N2O and CCl2F2 having slowed significantly during the more recent years. The derived rates of change will be compared to findings resulting from ground-level in situ investigations at latitudes similar to that of the Jungfraujoch, and be interpreted in terms of resulting global loading changes.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Zander, Rodolphe ;  Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)
Mahieu, Emmanuel  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Demoulin, Philippe ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Servais, Christian ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Mélen, Francine
Language :
English
Title :
Long-term evolution of the loading of CH4, N2O, CO, CCl2F2, CHClF2 and SF6 above Central Europe during the last 15 years
Publication date :
2000
Event name :
Second international symposium on non-CO2 greenhouse gases: scientific understanding, control options and policy aspects
Event place :
Noordwijkerhout, Netherlands
Event date :
September 8-10, 1999
Audience :
International
Main work title :
Non-CO2 greenhouse gases: scientific understanding, control and implementation
Editor :
J. van Ham
Publisher :
Kluwer Academic Publishers, Netherlands
Collection name :
Sp. Vol. Environmental Monitoring and Assessment
Pages :
211-216
Peer reviewed :
Peer reviewed
Available on ORBi :
since 19 June 2009

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