Forecast, observation and modelling of a deep stratospheric intrusion event over Europe

Zanis, P; Trickl, T; Stohl, A; Wernli, H; Cooper, O; Zerefos, C; Gaeggeler, H; Schnabel, C; Tobler, L; Kubik, W; Priller, A; Scheel, HE; Kanter, HJ; Cristofanelli, P; Forster, C; James, P; Gerasopoulos, E; Delcloo, A; Papayannis, A; Claude, H

dc.contributor.author	Zanis, P	en
dc.contributor.author	Trickl, T	en
dc.contributor.author	Stohl, A	en
dc.contributor.author	Wernli, H	en
dc.contributor.author	Cooper, O	en
dc.contributor.author	Zerefos, C	en
dc.contributor.author	Gaeggeler, H	en
dc.contributor.author	Schnabel, C	en
dc.contributor.author	Tobler, L	en
dc.contributor.author	Kubik, W	en
dc.contributor.author	Priller, A	en
dc.contributor.author	Scheel, HE	en
dc.contributor.author	Kanter, HJ	en
dc.contributor.author	Cristofanelli, P	en
dc.contributor.author	Forster, C	en
dc.contributor.author	James, P	en
dc.contributor.author	Gerasopoulos, E	en
dc.contributor.author	Delcloo, A	en
dc.contributor.author	Papayannis, A	en
dc.contributor.author	Claude, H	en
dc.date.accessioned	2014-03-01T01:19:00Z
dc.date.available	2014-03-01T01:19:00Z
dc.date.issued	2003	en
dc.identifier.issn	1680-7324	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15310
dc.subject.classification	Meteorology & Atmospheric Sciences	en
dc.subject.other	CROSS-TROPOPAUSE EXCHANGE	en
dc.subject.other	TROPOSPHERIC OZONE	en
dc.subject.other	ATMOSPHERIC TRANSPORT	en
dc.subject.other	NORTHERN-HEMISPHERE	en
dc.subject.other	POTENTIAL VORTICITY	en
dc.subject.other	CLIMATOLOGY	en
dc.subject.other	MAXIMUM	en
dc.subject.other	LIDAR	en
dc.subject.other	ALPS	en
dc.subject.other	CYCLONES	en
dc.title	Forecast, observation and modelling of a deep stratospheric intrusion event over Europe	en
heal.type	journalArticle	en
heal.identifier.primary	10.5194/acpd-3-1109-2003	en
heal.identifier.secondary	http://dx.doi.org/10.5194/acpd-3-1109-2003	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	A wide range of measurements was carried out in central and southeastern Europe within the framework of the EU project STACCATO (Influence of Stratosphere-Troposphere Exchange in a Changing Climate on Atmospheric Transport and Oxidation Capacity) with the principle goal to create a comprehensive data set on stratospheric air intrusions into the troposphere along a rather frequently observed pathway over central Europe from the North Sea to the Mediterranean Sea. The measurements were based on predictions by suitable quasi-operational trajectory calculations using ECMWF forecast data. A predicted deep Stratosphere to Troposphere Transport (STT) event, encountered during the STACCATO period on 20-21 June 2001, was followed by the measurements network almost from its inception. Observations provide evidence that the intrusion affected large parts of central and southeastern Europe. Especially, the ozone lidar observations on 20-21 June 2001 at Garmisch-Partenkirchen, Germany captured the evolution of two marked tongues of high ozone with the first one descending to nearly 2 km, thus providing an excellent data set for model intercomparisons and validation. In addition, for the first time to our knowledge concurrent surface measurements of the cosmogenic radionuclides10Be and7Be and their ratio10Be/7Be are presented together as stratospheric tracers in a case study of a stratospheric intrusion. The ozone tracer columns calculated with the FLEXPART model were found to be in good agreement with water vapour satellite images, capturing the evolution of the observed dry streamers of stratospheric origin. Furthermore, the time-height cross section of ozone tracer simulated with FLEXPART over Garmisch-Partenkirchen captures many details of the evolution of the two observed high-ozone filaments measured with the IFU lidar, thus demonstrating the considerable progress in model simulations. Finally, the modelled ozone (operationally available since October 1999) from the ECMWF (European Centre for Medium-Range Weather Forecasts) atmospheric model is shown to be in very good agreement with the observations during this case study, which provides the first successful validation of a chemical tracer that is derived operationally from a weather forecast model. This suggests that coupling chemistry and weather forecast models may significantly improve both weather and chemical forecasts in the future. © 2003 European Geosciences Union.	en
heal.publisher	EUROPEAN GEOPHYSICAL SOC	en
heal.journalName	Atmospheric Chemistry and Physics	en
dc.identifier.doi	10.5194/acpd-3-1109-2003	en
dc.identifier.isi	ISI:000183612900002	en
dc.identifier.volume	3	en
dc.identifier.issue	3	en
dc.identifier.spage	763	en
dc.identifier.epage	777	en