TY  - JOUR
AU  - Plöger, F.
AU  - Konopka, P.
AU  - Müller, R.
AU  - Günther, G.
AU  - Grooss, J.-U.
AU  - Schiller, C.
AU  - Ravegnani, F.
AU  - Ulanovski, A.
AU  - Riese, M.
TI  - Backtrajectory reconstruction of water vapour and ozone in-situ observations in the TTL
JO  - Meteorologische Zeitschrift
VL  - 21
SN  - 0941-2948
CY  - Stuttgart
PB  - E. Schweizerbart Science Publishers
M1  - PreJuSER-22110
SP  - 239 - 244
PY  - 2012
N1  - 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.
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000306436800004
DO  - DOI:10.1127/0941-2948/2012/0314
UR  - https://juser.fz-juelich.de/record/22110
ER  -