Poster (Scientific congresses and symposiums)
Long-term trends of NO above northern mid-latitudes as inferred from Jungfraujoch, HALOE and ACE-FTS solar observations
Demoulin, Philippe; Mahieu, Emmanuel; Servais, Christian et al.
2012Quadrennial Ozone Symposium
 

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Keywords :
atmosphere; total reactive nitrogen; FTIR
Abstract :
[en] Routine FTIR solar observations are performed by the University of Liège at the Jungfraujoch station (Swiss Alps, 3580 m altitude, NDACC station) since 1985. The analysis of the recorded spectra allows to derive total and partial columns of more than 20 different atmospheric gases. Among them, gases belonging to the total reactive nitrogen NOy (NO, NO2, HNO3 and ClONO2), to the total inorganic chlorine Cly (HCl and ClONO2) and to the total inorganic fluorine Fy (HF and COF2) families. In this communication, budgets of these gas families are investigated, and their short term, seasonal and inter-annual variations as well as their long-term trends are determined for the time period ranging from the mid-1980s up to the end of 2011. We also investigate the evolution of the same gases, when available, derived from ground-based UV-vis (1990-present) and from HALOE (1991-2004) and ACE-FTS (2004-present) satellite observations. We evaluate the consistency between the trends characterizing these various species, as deduced from the ground- and space-based time series.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Demoulin, Philippe ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Mahieu, Emmanuel  ;  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)
Lejeune, Bernard ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Bader, Whitney ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Roland, Ginette;  Université de Liège - ULiège > AGO > GIRPAS
Zander, Rodolphe ;  Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)
Walker, K;  Department of Chemistry, University of Waterloo, Canada & Department of Physics, University of Toronto, Canada
Bernath, P;  Old Dominion University, Norfolk, Virginia, USA
Van Roozendael, Michel;  Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium
Hendrick, François;  Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium
Language :
English
Title :
Long-term trends of NO above northern mid-latitudes as inferred from Jungfraujoch, HALOE and ACE-FTS solar observations
Publication date :
27 August 2012
Event name :
Quadrennial Ozone Symposium
Event place :
Toronto, Canada
Event date :
du 27 au 31 août 2012
Audience :
International
Available on ORBi :
since 29 March 2013

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