% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Konopka:7675, author = {Konopka, P. and Grooß, J.-U. and Günther, G. and Plöger, F. and Pommrich, R. and Müller, R. and Livesey, N.}, title = {{A}nnual cycle of ozone at and above the tropical tropopause: observations versus simulations with the {C}hemical {M}odel of the {S}tratosphere ({CL}a{MS})}, journal = {Atmospheric chemistry and physics}, volume = {10}, issn = {1680-7316}, address = {Katlenburg-Lindau}, publisher = {EGU}, reportid = {PreJuSER-7675}, pages = {121 - 132}, year = {2010}, note = {Record converted from VDB: 12.11.2012}, abstract = {Multi-annual simulations with the Chemical Lagrangian Model of the Stratosphere (CLaMS) were conducted to study the seasonality of O-3 within the stratospheric part of the tropical tropopause layer (TTL), i.e. above theta = 360K potential temperature level. In agreement with satellite (HALOE) and in-situ observations (SHADOZ), CLaMS simulations show a pronounced annual cycle in O-3, at and above theta = 380 K, with the highest mixing ratios in the late boreal summer. Within the model, this cycle is driven by the seasonality of both upwelling and in-mixing. The latter process occurs through enhanced horizontal transport from the extratropics into the TTL that is mainly driven by the meridional, isentropic winds. The strongest in-mixing occurs during the late boreal summer from the Northern Hemisphere in the potential temperature range between 370 and 420 K. Complementary, the strongest upwelling occurs in winter reducing O-3 to the lowest values in early spring. Both CLaMS simulations and Aura MLS O-3 observations consistently show that enhanced in-mixing in summer is mainly driven by the Asian monsoon anticyclone.}, keywords = {J (WoSType)}, cin = {ICG-1}, ddc = {550}, cid = {I:(DE-Juel1)VDB790}, pnm = {Atmosphäre und Klima}, pid = {G:(DE-Juel1)FUEK406}, shelfmark = {Meteorology $\&$ Atmospheric Sciences}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000274224600011}, doi = {10.5194/acp-10-121-2010}, url = {https://juser.fz-juelich.de/record/7675}, }