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Improved ozone monitoring by ground-based FTIR spectrometry
Título : Improved ozone monitoring by ground-based FTIR spectrometry
Autor : García Rodríguez, Omaira Elena ORCID RESEARCHERID Autor AEMETSanromá, Esther ORCID RESEARCHERID Schneider, Matthias RESEARCHERID Hase, FrankLeón-Luis, Sergio FabiánAutor AEMETBlumenstock, ThomasSepúlveda Hernández, EliezerRedondas, Alberto ORCID RESEARCHERID Autor AEMETCarreño Corbella, VirgilioAutor AEMETTorres, Carlos ORCID RESEARCHERID Autor AEMETPrats Porta, Natalia ORCID RESEARCHERID Autor AEMET
Palabras clave : Atmospheric ozone; Spectrometer; Brewer; Ozone observations
Fecha de publicación : 2022
Editor: European Geosciences Union
Citación : Atmospheric Measurement Techniques. 2022, 15(8), p. 2557–2577
Versión del editor: https://doi.org/10.5194/amt-15-2557-2022
Resumen : Accurate observations of atmospheric ozone (O3) are essential to monitor in detail its key role in atmospheric chemistry. The present paper examines the performance of different O3 retrieval strategies from FTIR (Fourier transform infrared) spectrometry by using the 20-year time series of the high-resolution solar spectra acquired from 1999 to 2018 at the subtropical Izaña Observatory (IZO, Spain) within NDACC (Network for the Detection of Atmospheric Composition Change). In particular, the effects of two of the most influential factors have been investigated: the inclusion of a simultaneous atmospheric temperature profile fit and the spectral O3 absorption lines used for the retrievals (the broad spectral region of 1000–1005 cm−1 and single microwindows between 991 and 1014 cm−1 ). Additionally, the water vapour (H2O) interference in O3 retrievals has been evaluated, with the aim of providing an improved O3 strategy that minimises its impact and, therefore, could be applied at any NDACC FTIR station under different humidity conditions. The theoretical and experimental quality assessments of the different FTIR O3 products (total column (TC) amounts and volume mixing ratio (VMR) profiles) provide consistent results.
Patrocinador: This research research has been supported by the European Research Council under FP7/(2007–2013)/ERC grant agreement no. 256961 (project MUSICA), by the Deutsche Forschungsgemeinschaft for the project MOTIV (Geschäftszeichen SCHN 1126/2-1), by the Ministerio de Economía y Competitividad of Spain through the projects CGL2012-37505 (project NOVIA) and CGL2016-80688- P (project INMENSE), and by EUMETSAT under its fellowship programme (project VALIASI).
URI : http://hdl.handle.net/20.500.11765/13655
ISSN : 1867-1381
1867-8548
Colecciones: Artículos científicos 2019-2022


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