In situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of IAGOS long-term routine observation
Despite several studies on temperature trends in the tropopause region, a comprehensive understanding of the evolution of temperatures in this climate-sensitive region of the atmosphere remains elusive. Here we present a unique global-scale, long-term data set of high-resolution in situ temperature...
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ftcopernicus:oai:publications.copernicus.org:acp59240 2023-05-15T17:33:43+02:00 In situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of IAGOS long-term routine observation Berkes, Florian Neis, Patrick Schultz, Martin G. Bundke, Ulrich Rohs, Susanne Smit, Herman G. J. Wahner, Andreas Konopka, Paul Boulanger, Damien Nédélec, Philippe Thouret, Valerie Petzold, Andreas 2018-09-07 application/pdf https://doi.org/10.5194/acp-17-12495-2017 https://www.atmos-chem-phys.net/17/12495/2017/ eng eng doi:10.5194/acp-17-12495-2017 https://www.atmos-chem-phys.net/17/12495/2017/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acp-17-12495-2017 2019-12-24T09:50:55Z Despite several studies on temperature trends in the tropopause region, a comprehensive understanding of the evolution of temperatures in this climate-sensitive region of the atmosphere remains elusive. Here we present a unique global-scale, long-term data set of high-resolution in situ temperature data measured aboard passenger aircraft within the European Research Infrastructure IAGOS (In-service Aircraft for a Global Observing System; http://www.iagos.org ). This data set is used to investigate temperature trends within the global upper troposphere and lowermost stratosphere (UTLS, < 13 km) for the period of 1995–2012 in different geographical regions and vertical layers of the UTLS. The largest number of observations is available over the North Atlantic. Here, a neutral temperature trend is found within the lowermost stratosphere. This contradicts the temperature trend in the European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim reanalysis, in which a significant (95 % confidence) temperature increase of +0.56 K decade −1 is found. Differences between trends derived from observations and reanalysis data can be traced back to changes in the temperature difference between observation and model data over the period studied. This study underpins the value of the IAGOS temperature observations as an anchor point for the evaluation of reanalyses and its suitability for independent trend analyses. Text North Atlantic Copernicus Publications: E-Journals Anchor Point ENVELOPE(-56.815,-56.815,51.233,51.233) Atmospheric Chemistry and Physics 17 20 12495 12508 |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
Despite several studies on temperature trends in the tropopause region, a comprehensive understanding of the evolution of temperatures in this climate-sensitive region of the atmosphere remains elusive. Here we present a unique global-scale, long-term data set of high-resolution in situ temperature data measured aboard passenger aircraft within the European Research Infrastructure IAGOS (In-service Aircraft for a Global Observing System; http://www.iagos.org ). This data set is used to investigate temperature trends within the global upper troposphere and lowermost stratosphere (UTLS, < 13 km) for the period of 1995–2012 in different geographical regions and vertical layers of the UTLS. The largest number of observations is available over the North Atlantic. Here, a neutral temperature trend is found within the lowermost stratosphere. This contradicts the temperature trend in the European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim reanalysis, in which a significant (95 % confidence) temperature increase of +0.56 K decade −1 is found. Differences between trends derived from observations and reanalysis data can be traced back to changes in the temperature difference between observation and model data over the period studied. This study underpins the value of the IAGOS temperature observations as an anchor point for the evaluation of reanalyses and its suitability for independent trend analyses. |
format |
Text |
author |
Berkes, Florian Neis, Patrick Schultz, Martin G. Bundke, Ulrich Rohs, Susanne Smit, Herman G. J. Wahner, Andreas Konopka, Paul Boulanger, Damien Nédélec, Philippe Thouret, Valerie Petzold, Andreas |
spellingShingle |
Berkes, Florian Neis, Patrick Schultz, Martin G. Bundke, Ulrich Rohs, Susanne Smit, Herman G. J. Wahner, Andreas Konopka, Paul Boulanger, Damien Nédélec, Philippe Thouret, Valerie Petzold, Andreas In situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of IAGOS long-term routine observation |
author_facet |
Berkes, Florian Neis, Patrick Schultz, Martin G. Bundke, Ulrich Rohs, Susanne Smit, Herman G. J. Wahner, Andreas Konopka, Paul Boulanger, Damien Nédélec, Philippe Thouret, Valerie Petzold, Andreas |
author_sort |
Berkes, Florian |
title |
In situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of IAGOS long-term routine observation |
title_short |
In situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of IAGOS long-term routine observation |
title_full |
In situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of IAGOS long-term routine observation |
title_fullStr |
In situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of IAGOS long-term routine observation |
title_full_unstemmed |
In situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of IAGOS long-term routine observation |
title_sort |
in situ temperature measurements in the upper troposphere and lowermost stratosphere from 2 decades of iagos long-term routine observation |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-17-12495-2017 https://www.atmos-chem-phys.net/17/12495/2017/ |
long_lat |
ENVELOPE(-56.815,-56.815,51.233,51.233) |
geographic |
Anchor Point |
geographic_facet |
Anchor Point |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-17-12495-2017 https://www.atmos-chem-phys.net/17/12495/2017/ |
op_doi |
https://doi.org/10.5194/acp-17-12495-2017 |
container_title |
Atmospheric Chemistry and Physics |
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17 |
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20 |
container_start_page |
12495 |
op_container_end_page |
12508 |
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1766132303277326336 |