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@ARTICLE{Gisinger:836825,
author = {Gisinger, Sonja and Dörnbrack, Andreas and Matthias,
Vivien and Doyle, James D. and Eckermann, Stephen D. and
Ehard, Benedikt and Hoffmann, Lars and Kaifler, Bernd and
Kruse, Christopher G. and Rapp, Markus},
title = {{A}tmospheric {C}onditions during the {D}eep {P}ropagating
{G}ravity {W}ave {E}xperiment ({DEEPWAVE})},
journal = {Monthly weather review},
volume = {145},
issn = {1520-0493},
address = {Washington, DC [u.a.]},
publisher = {AMS87486},
reportid = {FZJ-2017-05867},
pages = {MWR-D-16-0435.1},
year = {2017},
abstract = {This paper describes results of a comprehensive analysis of
the atmospheric conditions during the DEEPWAVE campaign in
austral winter 2014. Different datasets and diagnostics are
combined to characterize the background atmosphere from the
troposphere to the upper mesosphere. We report on how
weather regimes and the atmospheric state compare to
climatological conditions and also explore how they relate
to the airborne and ground-based gravity wave observations.
Key results of this study are the dominance of tropospheric
blocking situations and low-level southwesterly flows over
New Zealand during June, July, and August 2014. A varying
tropopause inversion layer was found to be connected to
varying vertical energy fluxes and is, therefore, an
important feature with respect to wave reflection. The
subtropical jet was frequently diverted south from its
climatological position at 30°S and was most often involved
in strong forcing events of mountain waves at the Southern
Alps. The polar front jet was typically responsible for
moderate and weak tropospheric forcing of mountain waves.
The stratospheric planetary wave activity amplified in July
leading to a displacement of the Antarctic polar vortex.
This reduced the stratospheric wind minimum by about 10 m
s-1 above New Zealand making breaking of large amplitude
gravity waves more likely. Satellite observations in the
upper stratosphere revealed that orographic gravity wave
variances for 2014 were largest in May, June and July, i.e.
the period of the DEEPWAVE field phase.},
cin = {JSC},
ddc = {550},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {511 - Computational Science and Mathematical Methods
(POF3-511)},
pid = {G:(DE-HGF)POF3-511},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000412896100018},
doi = {10.1175/MWR-D-16-0435.1},
url = {https://juser.fz-juelich.de/record/836825},
}