Representativeness of Single Lidar Stations for Zonally Averaged Ozone Profiles, Their Trends and Attribution to Proxies
The paper is focusing on the representativeness of single lidar stations for zonally averaged ozone profile variations over the middle and upper stratosphere. From the lower to the upper stratosphere, ozone profiles from single or grouped lidar stations correlate well with zonal means calculated fro...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20190025780 2023-05-15T13:33:01+02:00 Representativeness of Single Lidar Stations for Zonally Averaged Ozone Profiles, Their Trends and Attribution to Proxies Steinbrecht, Wolfgang Hubert, Daan Eleftheratos, Kostas Frith, Stacey Kapsomenakis, John Godin-Beekmann, Sophie Petropavlovskikh, Irina Hassler, Birgit Tourpali, Kleareti Zerefos, Christos Sofieva, Viktoria Unclassified, Unlimited, Publicly available May 7, 2018 application/pdf http://hdl.handle.net/2060/20190025780 unknown Document ID: 20190025780 http://hdl.handle.net/2060/20190025780 Copyright, Use by or on behalf of the U.S. Government permitted CASI Geophysics GSFC-E-DAA-TN69076 Atmospheric Chemistry and Physics (ISSN 1680-7316) (e-ISSN 1680-7324); 18; 9; 6427-6440 2018 ftnasantrs 2019-07-21T12:30:14Z The paper is focusing on the representativeness of single lidar stations for zonally averaged ozone profile variations over the middle and upper stratosphere. From the lower to the upper stratosphere, ozone profiles from single or grouped lidar stations correlate well with zonal means calculated from Solar Backscatter Ultraviolet Radiometer (SBUV) satellite overpasses. The best representativeness with significant correlation coefficients is found within 15 degrees of latitude circles north or south of any lidar station. The paper includes also a multiple linear regression analysis on the relative importance of proxy time series for explaining variations in the vertical ozone profiles. Studied proxies represent variability due to influences outside of the earth system (solar cycle), as well as within the earth system i.e. dynamic processes (the Quasi Biennial Oscillation (QBO), the Arctic Oscillation (AO), the Antarctic Oscillation (AAO), the El Nio Southern Oscillation (ENSO)), those due to volcanic aerosol (Aerosol Optical Depth (AOD)), and to the tropopause height changes (including global warming) and those due to manmade contributions to chemistry (Equivalent Effective Stratospheric Chlorine (EESC)). Ozone trends are estimated, with and without removal of proxies, from the total available 1980 to 2015 SBUV record. Except for the chemistry related proxy (EESC) and its orthogonal function, the removal of the other proxies does not alter the significance of the estimated long-term trends. At heights above 15 hPa an inflection point between 1997 and 1999 marks the end of significant negative ozone trends, followed by a recent period between 1998-2015 with positive ozone trends. At heights between 15 hPa and 40 hPa the pre-1998 negative ozone trends tend to become less significant as we move towards 2015, below which the lower stratosphere ozone decline continues in agreement with findings of recent literature. Other/Unknown Material Antarc* Antarctic Arctic Global warming NASA Technical Reports Server (NTRS) Antarctic Arctic The Antarctic |
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NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
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unknown |
topic |
Geophysics |
spellingShingle |
Geophysics Steinbrecht, Wolfgang Hubert, Daan Eleftheratos, Kostas Frith, Stacey Kapsomenakis, John Godin-Beekmann, Sophie Petropavlovskikh, Irina Hassler, Birgit Tourpali, Kleareti Zerefos, Christos Sofieva, Viktoria Representativeness of Single Lidar Stations for Zonally Averaged Ozone Profiles, Their Trends and Attribution to Proxies |
topic_facet |
Geophysics |
description |
The paper is focusing on the representativeness of single lidar stations for zonally averaged ozone profile variations over the middle and upper stratosphere. From the lower to the upper stratosphere, ozone profiles from single or grouped lidar stations correlate well with zonal means calculated from Solar Backscatter Ultraviolet Radiometer (SBUV) satellite overpasses. The best representativeness with significant correlation coefficients is found within 15 degrees of latitude circles north or south of any lidar station. The paper includes also a multiple linear regression analysis on the relative importance of proxy time series for explaining variations in the vertical ozone profiles. Studied proxies represent variability due to influences outside of the earth system (solar cycle), as well as within the earth system i.e. dynamic processes (the Quasi Biennial Oscillation (QBO), the Arctic Oscillation (AO), the Antarctic Oscillation (AAO), the El Nio Southern Oscillation (ENSO)), those due to volcanic aerosol (Aerosol Optical Depth (AOD)), and to the tropopause height changes (including global warming) and those due to manmade contributions to chemistry (Equivalent Effective Stratospheric Chlorine (EESC)). Ozone trends are estimated, with and without removal of proxies, from the total available 1980 to 2015 SBUV record. Except for the chemistry related proxy (EESC) and its orthogonal function, the removal of the other proxies does not alter the significance of the estimated long-term trends. At heights above 15 hPa an inflection point between 1997 and 1999 marks the end of significant negative ozone trends, followed by a recent period between 1998-2015 with positive ozone trends. At heights between 15 hPa and 40 hPa the pre-1998 negative ozone trends tend to become less significant as we move towards 2015, below which the lower stratosphere ozone decline continues in agreement with findings of recent literature. |
format |
Other/Unknown Material |
author |
Steinbrecht, Wolfgang Hubert, Daan Eleftheratos, Kostas Frith, Stacey Kapsomenakis, John Godin-Beekmann, Sophie Petropavlovskikh, Irina Hassler, Birgit Tourpali, Kleareti Zerefos, Christos Sofieva, Viktoria |
author_facet |
Steinbrecht, Wolfgang Hubert, Daan Eleftheratos, Kostas Frith, Stacey Kapsomenakis, John Godin-Beekmann, Sophie Petropavlovskikh, Irina Hassler, Birgit Tourpali, Kleareti Zerefos, Christos Sofieva, Viktoria |
author_sort |
Steinbrecht, Wolfgang |
title |
Representativeness of Single Lidar Stations for Zonally Averaged Ozone Profiles, Their Trends and Attribution to Proxies |
title_short |
Representativeness of Single Lidar Stations for Zonally Averaged Ozone Profiles, Their Trends and Attribution to Proxies |
title_full |
Representativeness of Single Lidar Stations for Zonally Averaged Ozone Profiles, Their Trends and Attribution to Proxies |
title_fullStr |
Representativeness of Single Lidar Stations for Zonally Averaged Ozone Profiles, Their Trends and Attribution to Proxies |
title_full_unstemmed |
Representativeness of Single Lidar Stations for Zonally Averaged Ozone Profiles, Their Trends and Attribution to Proxies |
title_sort |
representativeness of single lidar stations for zonally averaged ozone profiles, their trends and attribution to proxies |
publishDate |
2018 |
url |
http://hdl.handle.net/2060/20190025780 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic Global warming |
genre_facet |
Antarc* Antarctic Arctic Global warming |
op_source |
CASI |
op_relation |
Document ID: 20190025780 http://hdl.handle.net/2060/20190025780 |
op_rights |
Copyright, Use by or on behalf of the U.S. Government permitted |
_version_ |
1766037872562929664 |