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  • Vigouroux, C.Belgian Institute for Space Aeronomy (BIRA-IASB) (författare)

Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations

  • Artikel/kapitelEngelska2008

Förlag, utgivningsår, omfång ...

  • 2008-12-01
  • Copernicus GmbH,2008
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:research.chalmers.se:15b90bcc-18c9-46de-bef9-cbce8d20ea1d
  • https://research.chalmers.se/publication/100639URI
  • https://doi.org/10.5194/acp-8-6865-2008DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • Within the European project UFTIR (Time series of Upper Free Troposphere observations from an European ground-based FTIR network), six ground-based stations in Western Europe, from 79 degrees N to 28 degrees N, all equipped with Fourier Transform infrared (FTIR) instruments and part of the Network for the Detection of Atmospheric Composition Change (NDACC), have joined their efforts to evaluate the trends of several direct and indirect greenhouse gases over the period 1995-2004. The retrievals of CO, CH4, C2H6, N2O, CHClF2, and O-3 have been optimized. Using the optimal estimation method, some vertical information can be obtained in addition to total column amounts. A bootstrap resampling method has been implemented to determine annual partial and total column trends for the target gases. The present work focuses on the ozone results. The retrieved time series of partial and total ozone columns are validated with ground-based correlative data (Brewer, Dobson, UV-Vis, ozonesondes, and Lidar). The observed total column ozone trends are in agreement with previous studies: 1) no total column ozone trend is seen at the lowest latitude station Izana (28 degrees N); 2) slightly positive total column trends are seen at the two mid-latitude stations Zugspitze and Jungfraujoch (47 degrees N), only one of them being significant; 3) the highest latitude stations Harestua (60 degrees N), Kiruna (68 degrees N) and Ny-Alesund (79 degrees N) show significant positive total column trends. Following the vertical information contained in the ozone FTIR retrievals, we provide partial columns trends for the layers: ground-10 km, 10-18 km, 18-27 km, and 27-42 km, which helps to distinguish the contributions from dynamical and chemical changes on the total column ozone trends. We obtain no statistically significant trends in the ground-10 km layer for five out of the six ground-based stations. We find significant positive trends for the lower-most stratosphere at the two mid-latitude stations, and at Ny-Alesund. We find smaller, but significant trends for the 18 27 km layer at Kiruna, Harestua, Jungfraujoch, and Izana. The results for the upper layer are quite contrasted: we find significant positive trends at Kiruna, Harestua, and Jungfraujoch, and significant negative trends at Zugspitze and Izana. These ozone partial columns trends are discussed and compared with previous studies.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • De Maziere, M.Belgian Institute for Space Aeronomy (BIRA-IASB) (författare)
  • Demoulin, P.Universite de Liège,University of Liège (författare)
  • Servais, C.Universite de Liège,University of Liège (författare)
  • Hase, F.Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT) (författare)
  • Blumenstock, T.Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT) (författare)
  • Kramer, I.Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT) (författare)
  • Schneider, M.Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT) (författare)
  • Mellqvist, Johan,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jome (författare)
  • Strandberg, Anders,1973Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)k95092 (författare)
  • Velazco, V.Universität Bremen (författare)
  • Notholt, J.Universität Bremen (författare)
  • Sussmann, R.Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT) (författare)
  • Stremme, W.Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT) (författare)
  • Rockmann, A.Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT) (författare)
  • Gardiner, T.National Physical Laboratory (NPL) (författare)
  • Coleman, M.National Physical Laboratory (NPL) (författare)
  • Woods, P.National Physical Laboratory (NPL) (författare)
  • Belgian Institute for Space Aeronomy (BIRA-IASB)Universite de Liège (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Atmospheric Chemistry and Physics: Copernicus GmbH8:23, s. 6865-68861680-73161680-7324

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