Trends of ozone total columns and vertical distribution from FTIR observations at 8 NDACC stations around the globe [Discussion paper]

• Main Authors: Vigouroux, Corinne, Blumenstock, Thomas, Coffey, M., Errera, Quentin, García Rodríguez, Omaira Elena, Jones, Nicholas, Hannigan, James W., Hase, Frank, Liley, Ben, Mahieu, Emmanuel, Mellqvist, Johan, Notholt, Justus, Palm, Mathias, Persson, Glenn, Schneider, Matthias, Servais, Christian, Smale, Dan, Thölix, Laura, De Mazière, Martine
• Format: Article in Journal/Newspaper
• Language: English
• Published: European Geosciences Union 2014
• Subjects: Espectrometría de transformada de Fourier; Ozono; Gases de efecto invernadero; Greenhouse gases; Ozone; Fourier transform spectroscopy; Ny-Ålesund; Kiruna; Ny Ålesund
• Online Access: https://hdl.handle.net/20.500.11765/6623

Ground-based Fourier transform infrared (FTIR) measurements of solar absorption spectra can provide ozone total columns with a precision of 2% but also independent partial column amounts in about four vertical layers, one in the troposphere and three in the stratosphere up to about 45km, with a precision of 5–6%. We use eight of the Network for the Detection of Atmospheric Composition Change (NDACC) stations having a long-term time series of FTIR ozone measurements to study the total and vertical ozone trends and variability, namely, Ny-Ålesund (79° N), Thule (77° N), Kiruna (68° N), Harestua (60° N), Jungfraujoch (47° N), Izaña (28° N), Wollongong (34° S) and Lauder (45° S). This study has been supported by the EU FP7 project NORS, the ESA PRODEX project A3C, as well as the AGACC-II project within the Science for a Sustainable Development research program funded by the Belgian Science Policy Office.