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          Institute: MPI für Meteorologie     Collection: Atmosphere in the Earth System     Display Documents

ID: 174074.0, MPI für Meteorologie / Atmosphere in the Earth System
Stratosphere-troposphere exchange: A model and method intercomparison
Authors:Meloen, J.; Siegmund, P.; van Velthoven, P.; Kelder, H.; Sprenger, M.; Wernli, H.; Kentarchos, A.; Roelofs, G.; Feichter, Johann; Land, Christine; Forster, C.; James, P.; Stohl, A.; Collins, W.; Cristofanelli, P.
Date of Publication (YYYY-MM-DD):2003-04-19
Title of Journal:Journal of Geophysical Research-Atmospheres
Journal Abbrev.:J. Geophys. Res.-Atmos.
Issue / Number:D12
Sequence Number of Article:8526
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:This paper presents one of the first extensive intercomparisons of models and methods used for estimating stratosphere-troposphere exchange (STE). The study is part of the European Union project Influence of Stratosphere Troposphere Exchange in a Changing Climate on Atmospheric Transport and Oxidation Capacity (STACCATO). Nine different models and methods, including three trajectory methods, one Eulerian method, two Lagrangian and one Eulerian transport model, and two general circulation models applied the same initialization. Stratospheric and tropospheric tracers have been simulated, and the tracer mass fluxes have been calculated through the tropopause and the 700 hPa surface. For a 12-day case study over Europe and the northeast Atlantic the simulated tracer mass fluxes have been intercompared. For this case the STE simulations show the same temporal evolution and the same geographical pattern of STE for most models and methods, but with generally different amplitudes (up to a factor of 4). On the other hand, for some simulations also the amplitudes are very similar.
Comment of the Author/Creator:Date: 2003, APR 19
External Publication Status:published
Document Type:Article
Communicated by:Carola Kauhs
Affiliations:MPI für Meteorologie/The Atmosphere in the Earth System
External Affiliations:Royal Netherlands Meteorol Inst, Div Atmospher Composit, NL-3730 AE De Bilt, Netherlands.; Meteorol Off, Bracknell RG12 2SZ, Berks, England.; CNR, Inst Atmosphere & Climate Sci, I-40129 Bologna, Italy.; Max Planck Inst Meteorol, D-20146 Hamburg, Germany.; Tech Univ Munich, Lehrstuhl Bioklimatol & Immiss Forsch, D-85354 Freising Weihenstephan, Germany.; Univ Utrecht, Inst Marine & Atmospher Res, NL-3584 CC Utrecht, Netherlands.; ETH Zentrum, Inst Atmospher & Climate Sci, CH-8093 Zurich, Switzerland.; Tech Univ Eindhoven, NL-5600 MB Eindhoven, Netherlands.
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