Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations
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° N to 28° N, all equipped with Fourier Transform infrared (FTIR) instruments and part of the Network for the Detecti...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2008
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-8-6865-2008 https://noa.gwlb.de/receive/cop_mods_00047988 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047608/acp-8-6865-2008.pdf https://acp.copernicus.org/articles/8/6865/2008/acp-8-6865-2008.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00047988 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00047988 2023-05-15T17:04:11+02:00 Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations Vigouroux, C. De Mazière, M. Demoulin, P. Servais, C. Hase, F. Blumenstock, T. Kramer, I. Schneider, M. Mellqvist, J. Strandberg, A. Velazco, V. Notholt, J. Sussmann, R. Stremme, W. Rockmann, A. Gardiner, T. Coleman, M. Woods, P. 2008-12 electronic https://doi.org/10.5194/acp-8-6865-2008 https://noa.gwlb.de/receive/cop_mods_00047988 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047608/acp-8-6865-2008.pdf https://acp.copernicus.org/articles/8/6865/2008/acp-8-6865-2008.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-8-6865-2008 https://noa.gwlb.de/receive/cop_mods_00047988 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047608/acp-8-6865-2008.pdf https://acp.copernicus.org/articles/8/6865/2008/acp-8-6865-2008.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2008 ftnonlinearchiv https://doi.org/10.5194/acp-8-6865-2008 2022-02-08T22:38:12Z 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° N to 28° 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 O3 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 Izaña (28° N); 2) slightly positive total column trends are seen at the two mid-latitude stations Zugspitze and Jungfraujoch (47° N), only one of them being significant; 3) the highest latitude stations Harestua (60° N), Kiruna (68° N) and Ny-Ålesund (79° 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 lowermost stratosphere at the two mid-latitude stations, and at Ny-Ålesund. We find smaller, but significant trends for the 18–27 km layer at Kiruna, Harestua, Jungfraujoch, and Izaña. 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 Izaña. These ozone partial columns trends are discussed and compared with previous studies. Article in Journal/Newspaper Kiruna Ny Ålesund Ny-Ålesund Niedersächsisches Online-Archiv NOA Kiruna Ny-Ålesund Atmospheric Chemistry and Physics 8 23 6865 6886 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Vigouroux, C. De Mazière, M. Demoulin, P. Servais, C. Hase, F. Blumenstock, T. Kramer, I. Schneider, M. Mellqvist, J. Strandberg, A. Velazco, V. Notholt, J. Sussmann, R. Stremme, W. Rockmann, A. Gardiner, T. Coleman, M. Woods, P. Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations |
topic_facet |
article Verlagsveröffentlichung |
description |
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° N to 28° 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 O3 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 Izaña (28° N); 2) slightly positive total column trends are seen at the two mid-latitude stations Zugspitze and Jungfraujoch (47° N), only one of them being significant; 3) the highest latitude stations Harestua (60° N), Kiruna (68° N) and Ny-Ålesund (79° 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 lowermost stratosphere at the two mid-latitude stations, and at Ny-Ålesund. We find smaller, but significant trends for the 18–27 km layer at Kiruna, Harestua, Jungfraujoch, and Izaña. 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 Izaña. These ozone partial columns trends are discussed and compared with previous studies. |
format |
Article in Journal/Newspaper |
author |
Vigouroux, C. De Mazière, M. Demoulin, P. Servais, C. Hase, F. Blumenstock, T. Kramer, I. Schneider, M. Mellqvist, J. Strandberg, A. Velazco, V. Notholt, J. Sussmann, R. Stremme, W. Rockmann, A. Gardiner, T. Coleman, M. Woods, P. |
author_facet |
Vigouroux, C. De Mazière, M. Demoulin, P. Servais, C. Hase, F. Blumenstock, T. Kramer, I. Schneider, M. Mellqvist, J. Strandberg, A. Velazco, V. Notholt, J. Sussmann, R. Stremme, W. Rockmann, A. Gardiner, T. Coleman, M. Woods, P. |
author_sort |
Vigouroux, C. |
title |
Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations |
title_short |
Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations |
title_full |
Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations |
title_fullStr |
Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations |
title_full_unstemmed |
Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations |
title_sort |
evaluation of tropospheric and stratospheric ozone trends over western europe from ground-based ftir network observations |
publisher |
Copernicus Publications |
publishDate |
2008 |
url |
https://doi.org/10.5194/acp-8-6865-2008 https://noa.gwlb.de/receive/cop_mods_00047988 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047608/acp-8-6865-2008.pdf https://acp.copernicus.org/articles/8/6865/2008/acp-8-6865-2008.pdf |
geographic |
Kiruna Ny-Ålesund |
geographic_facet |
Kiruna Ny-Ålesund |
genre |
Kiruna Ny Ålesund Ny-Ålesund |
genre_facet |
Kiruna Ny Ålesund Ny-Ålesund |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-8-6865-2008 https://noa.gwlb.de/receive/cop_mods_00047988 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00047608/acp-8-6865-2008.pdf https://acp.copernicus.org/articles/8/6865/2008/acp-8-6865-2008.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-8-6865-2008 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
8 |
container_issue |
23 |
container_start_page |
6865 |
op_container_end_page |
6886 |
_version_ |
1766058224424845312 |