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  Tropopause Folds Over the Eastern Mediterranean and the Middle East in EMAC Simulations: Implications for Summertime Tropospheric Ozone

Akritidis, D., Pozzer, A., Zanis, P., Tyrlis, E., Skerlak, B., Sprenger, M., et al. (2017). Tropopause Folds Over the Eastern Mediterranean and the Middle East in EMAC Simulations: Implications for Summertime Tropospheric Ozone. In T. Karacostas (Ed.), Perspectives on Atmospheric Sciences. Proceedings of the 13th International Conference of Meteorology, Climatology and Atmospheric Physics (COMECAP 2016) that is held in Thessaloniki from 19 to 21 September 2016 (pp. 975-981).

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-9598-0 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-95A4-3
Genre: Conference Paper

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 Creators:
Akritidis, D.1, Author
Pozzer, A.2, Author           
Zanis, P.1, Author
Tyrlis, E.1, Author
Skerlak, B.1, Author
Sprenger, M.1, Author
Lelieveld, J.2, Author           
Affiliations:
1external, ou_persistent22              
2Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826285              

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 Abstract: A 35 year climatological analysis (1979–2013) of tropopause fold frequency has been performed over the eastern Mediterranean and the Middle East, focusing on the implications for tropospheric ozone. The analysis is based on simulations with the EMAC (ECHAM5-MESSy) atmospheric chemistry climate model using a T42L90MA resolution, nudged tropospheric meteorology towards ERA-Interim reanalysis data and a tracer for stratospheric ozone (O3s). We implement a 3-D labeling algorithm, in order to detect tropopause folding events in EMAC simulations as areas of multiple crossings of the dynamical tropopause. A clear hot spot of tropopause folds occurs over the broader eastern Mediterranean and Middle East region during the summer season. A significant contribution of tropopause folds to the summertime pool of high tropospheric ozone over the eastern Mediterranean is identified during the selected fold events. Finally, a year-to-year analysis indicates a significant positive correlation between the observed near surface ozone and EMAC simulated middle/lower tropospheric ozone over the eastern Mediterranean.

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 Dates: 2017
 Publication Status: Issued
 Pages: -
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 Rev. Type: -
 Identifiers: ISI: 000392385800139
DOI: 10.1007/978-3-319-35095-0_139
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Title: Perspectives on Atmospheric Sciences. Proceedings of the 13th International Conference of Meteorology, Climatology and Atmospheric Physics (COMECAP 2016) that is held in Thessaloniki from 19 to 21 September 2016
Source Genre: Proceedings
 Creator(s):
Karacostas, T., Editor
Affiliations:
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Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 975 - 981 Identifier: ISSN: 2194-5217
ISBN: 978-3-319-35095-0; 978-3-319-35094-3

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Title: Springer Atmospheric Sciences
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 2194-5217