%0 Journal Article
%A Plöger, F.
%A Konopka, P.
%A Müller, R.
%A Günther, G.
%A Grooss, J.-U.
%A Schiller, C.
%A Ravegnani, F.
%A Ulanovski, A.
%A Riese, M.
%T Backtrajectory reconstruction of water vapour and ozone in-situ observations in the TTL
%J Meteorologische Zeitschrift
%V 21
%@ 0941-2948
%C Stuttgart
%I E. Schweizerbart Science Publishers
%M PreJuSER-22110
%P 239 - 244
%D 2012
%Z We thank the ECMWF for providing the reanalysis data, COST for funding a Short Term Scientific Mission for F. PLOEGER, and in particular N. THOMAS for programming support.
%X Water vapour and ozone in-situ observations in the tropical tropopause layer (TTL) during the three tropical campaigns SCOUT-O3, AMMA and TroCCiNOx are reconstructed from diabatic and kinematic backtrajectories, with the reconstruction method for the tracer fields based on freeze-drying and photochemichal ozone production. The results using diabatic trajectories show that both water vapour and ozone in-situ observations can be well reconstructed from trajectories. Consequentially, in-situ observations agree with the assumption of freeze-drying due to the large-scale temperature field as the main control mechanism for water vapour and photochemical production and transport as main control mechanisms for tropical ozone. The kinematic ozone reconstruction, however, shows a large high-bias during SCOUT-O3 and a too strong variability during all campaigns, due to excessive transport of stratospheric ozone into the TTL. We conclude that kinematic reconstructions of in-situ observations are less reliable than diabatic, due to unrealistic inhomogeneities in the velocity field.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000306436800004
%R 10.1127/0941-2948/2012/0314
%U https://juser.fz-juelich.de/record/22110