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H2O retrievals from Jungfraujoch infrared spectra: some spectroscopic problems.
Demoulin, Philippe; Trabelsi, Samy; Mahieu, Emmanuel et al.
2008In Proceedings of the 8th Atmospheric Spectroscopy Applications Meeting
 

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Keywords :
water vapor; Jungfraujoch; FTIR spectroscopy; infrared atmospheric spectra
Abstract :
[en] Since 1949, solar absorption spectra have been acquired at the Jungfraujoch observatory (Swiss Alps, 46.5°N, 8.0°E, 3580 m a.s.l.), first with grating spectrometers, then with Fourier transform infrared (FTIR) spectrometers. Most observations collected with these instruments encompass water vapor absorptions, even the narrow spectral domains regularly recorded with the grating instruments to monitor the evolution of important atmospheric constituents. The aim of this work is to analyze all available spectra containing usable H2O absorption lines, to derive a long-term record of its total column in the atmosphere above the Jungfraujoch. In addition, more recent FTIR broadband spectra, with better signal-to-noise ratio and resolution, will be analyzed with state of the art algorithm, in order to derive information on the vertical distribution of H2O.
Research center :
GIRPAS
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)
Trabelsi, Samy;  Université de Liège - ULiège > Institut d'Astrophysique et de Géophysique
Mahieu, Emmanuel  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Duchatelet, Pierre ;  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)
Roland, Ginette;  Université de Liège - ULiège > Institut d'Astrophysique et de Géophysique
Language :
English
Title :
H2O retrievals from Jungfraujoch infrared spectra: some spectroscopic problems.
Publication date :
2008
Event name :
8th Atmospheric Spectroscopy Applications Meeting
Event place :
Reims, France
Event date :
27-30 August 2008
By request :
Yes
Audience :
International
Main work title :
Proceedings of the 8th Atmospheric Spectroscopy Applications Meeting
Available on ORBi :
since 27 October 2011

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