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Titel: Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016
Autor(en): Schneidereit, A.Peters, D.H.W.
Verlagsversion: https://doi.org/10.3390/atmos9120468
Erscheinungsjahr: 2018
Publiziert in: Atmosphere 9 (2018), 12
Verlag: Basel : MDPI AG
Abstract: Strong zonally asymmetric ozone (ZAO) changes are observed in the boreal extratropics for winter. During the TOMS (Total Ozone Mapping Spectrometer) period (1979-1992) the decrease of zonally asymmetric total ozone (ZATO) was twice as large as the observed zonal mean total ozone trend over Europe in January mainly caused by ultra-long wave transport. Recent studies have demonstrated that the ozone evolution reveals three different quasi-bidecadal trend stages: (i) Decline, (ii) leveling, and (ii) healing. This study focuses on the ZAO structure in boreal extratropics and on ozone transport changes by ultra-long waves during winter months. ERA-Interim data together with a linearized transport model are used. During the healing stage ZATO increases significantly over the North Atlantic/European region for January. The ZATO increase (healing stage) and ZATO decrease (decline stage) are caused by different monthly mean ozone transport characteristics of ultra-long planetary waves over the North Atlantic/European region. Furthermore, the vertical advection (ageostrophic transport) of ozone versus its horizontal component dominates in the lower and middle stratosphere during the healing stage. It is hypothesized that these ageostrophic wind changes are mainly caused by a wave train directed northeastwards which seems to be directly linked to the Arctic warming. © 2018 by the authors.
Schlagwörter: Ozone transport; Quasi-bidecadal trend; Total column ozone, zonally asymmetric ozone; Ultra-long planetary waves; Horizontal components; Ozone transport; Planetary Waves; Quasi-bidecadal trend; Total column ozone; Total ozone mapping spectrometer; Transport modeling; Vertical advection; Ozone; ageostrophic flow; atmospheric chemistry; atmospheric transport; extratropical environment; long range transport; ozone; planetary wave; stratosphere; temporal variation; trend analysis; winter; Atlantic Ocean; Atlantic Ocean (North); Europe
DDC: 550
Lizenz: CC BY 4.0 Unported
Link zur Lizenz: https://creativecommons.org/licenses/by/4.0/
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Schneidereit, A. and D.H.W. Peters, 2018. Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016. 2018. Basel : MDPI AG
Schneidereit, A. and Peters, D. H. W. (2018) “Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016.” Basel : MDPI AG. doi: https://doi.org/10.3390/atmos9120468.
Schneidereit A, Peters D H W. Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016. Vol. 9. Basel : MDPI AG; 2018.
Schneidereit, A., & Peters, D. H. W. (2018). Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016 (Version publishedVersion, Vol. 9). Version publishedVersion, Vol. 9. Basel : MDPI AG. https://doi.org/https://doi.org/10.3390/atmos9120468
Schneidereit A, Peters D H W. Long-term wintertime trend of zonally asymmetric ozone in boreal extratropics during 1979-2016. 2018;9(12). doi:https://doi.org/10.3390/atmos9120468


Diese Publikation wurde unter der folgenden Lizenz veröffentlicht: Creative-Commons-Lizenz Creative Commons