El Niño Southern Oscillation influence on the Asian summer monsoon anticyclone [PDF]
We analyse the influence of the El Niño Southern Oscillation (ENSO) on the atmospheric circulation and the mean ozone distribution in the tropical and subtropical UTLS region.
X. Yan +9 more
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Superposition of gravity waves with different propagation characteristics observed by airborne and space-borne infrared sounders [PDF]
Many gravity wave analyses, based on either observations or model simulations, assume the presence of only a single dominant wave. This paper shows that there are much more complex cases with gravity waves from multiple sources crossing each others ...
I. Krisch +9 more
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Typhoons play a key role in causing low ozone concentrations in the upper troposphere and lower stratosphere (UTLS) over the western Pacific. In this study, 18 years records (2000–2017) of balloon‐borne ozone measurements in Hong Kong (22.3°N, 114.2°E ...
Dan Li +5 more
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Transport timescales and tracer properties in the extratropical UTLS [PDF]
A comprehensive evaluation of seasonal backward trajectories initialized in the Northern Hemisphere lowermost stratosphere (LMS) has been performed to investigate the origin of air parcels and the main mechanisms determining characteristic structures in ...
Hegglin, Michaela I. +2 more
core +1 more source
Solar influences on dynamical coupling between the stratosphere and troposphere [PDF]
We use a simplified atmospheric general circulation model (AGCM) to investigate the response of the lower atmosphere to thermal perturbations in the lower stratosphere.
Blackburn, M., Haigh, J. D.
core +1 more source
Observations of filamentary structures near the vortex edge in the Arctic winter lower stratosphere [PDF]
The CRISTA-NF (Cryogenic Infrared Spectrometers and Telescope for the Atmosphere – New Frontiers) instrument is an airborne infrared limb sounder operated aboard the Russian research aircraft M55-Geophysica. The instrument successfully participated
C. Kalicinsky +11 more
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Orographically induced spontaneous imbalance within the jet causing a large-scale gravity wave event [PDF]
To better understand the impact of gravity waves (GWs) on the middle atmosphere in the current and future climate, it is essential to understand their excitation mechanisms and to quantify their basic properties.
M. Geldenhuys +9 more
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Fast transport from Southeast Asia boundary layer sources to northern Europe: rapid uplift in typhoons and eastward eddy shedding of the Asian monsoon anticyclone [PDF]
Enhanced tropospheric trace gases such as CO, CH4 and H2O and reduced stratospheric O3 were measured in situ in the lowermost stratosphere over northern Europe on 26 September 2012 during the TACTS aircraft campaign.
B. Vogel +8 more
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How can Brewer–Dobson circulation trends be estimated from changes in stratospheric water vapour and methane? [PDF]
The stratospheric meridional overturning circulation, also referred to as the Brewer–Dobson circulation (BDC), controls the composition of the stratosphere, which, in turn, affects radiation and climate. As the BDC cannot be directly measured, one has to
L. Poshyvailo-Strube +11 more
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Retrieving the age of air spectrum from tracers: principle and method [PDF]
Surface-emitted tracers with different dependencies on transit time (e.g., due to chemical loss or time-dependent boundary conditions) carry independent pieces of information on the age of air spectrum (the distribution of transit times from the surface).
A. Podglajen, F. Ploeger
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