Results 41 to 50 of about 34,894 (282)

Superposition of gravity waves with different propagation characteristics observed by airborne and space-borne infrared sounders [PDF]

Atmospheric Chemistry and Physics, 2020
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, I. Krisch, M. Ern, L. Hoffmann, P. Preusse, C. Strube, J. Ungermann, J. Ungermann, W. Woiwode, M. Riese   +9 more
doaj   +1 more source

Residual circulation trajectories and transit times into the extratropical lowermost stratosphere [PDF]

, 2010
Transport into the extratropical lowermost stratosphere (LMS) can be divided into a slow part (time-scale of several months to years) associated with the global-scale stratospheric residual circulation and a fast part (time-scale of days to a few months)
Bönisch, Harald, H. Bönisch, Birner, Thomas, T. Birner   +3 more
core   +2 more sources

Observations of filamentary structures near the vortex edge in the Arctic winter lower stratosphere [PDF]

Atmospheric Chemistry and Physics, 2013
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, J.-U. Grooß, G. Günther, J. Ungermann, J. Blank, S. Höfer, L. Hoffmann, P. Knieling, F. Olschewski, R. Spang, F. Stroh, M. Riese   +11 more
doaj   +1 more source

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]

Atmospheric Chemistry and Physics, 2014
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, G. Günther, R. Müller, J.-U. Grooß, P. Hoor, M. Krämer, S. Müller, A. Zahn, M. Riese   +8 more
doaj   +1 more source

Orographically induced spontaneous imbalance within the jet causing a large-scale gravity wave event [PDF]

Atmospheric Chemistry and Physics, 2021
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, M. Geldenhuys, P. Preusse, I. Krisch, C. Zülicke, J. Ungermann, J. Ungermann, M. Ern, F. Friedl-Vallon, M. Riese   +9 more
doaj   +1 more source

How can Brewer–Dobson circulation trends be estimated from changes in stratospheric water vapour and methane? [PDF]

Atmospheric Chemistry and Physics, 2022
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, L. Poshyvailo-Strube, L. Poshyvailo-Strube, R. Müller, S. Fueglistaler, S. Fueglistaler, M. I. Hegglin, M. I. Hegglin, J. C. Laube, C. M. Volk, F. Ploeger, F. Ploeger   +11 more
doaj   +1 more source

Morphology of the tropopause layer and lower stratosphere above a tropical cyclone : a case study on cyclone Davina (1999) [PDF]

, 2007
During the APE-THESEO mission in the Indian Ocean the Myasishchev Design Bureau stratospheric research aircraft M55 Geophysica performed a flight over and within the inner core region of tropical cyclone Davina. Measurements of total water, water vapour,
Yushkov, V, Adriani, A., Snels, M, M. Snels, V. Yushkov, C. Cagnazzo, Di Donfrancesco, Guido, Cagnazzo, C, Schiller, C, Schiller, C., Yushkov, Vladimir, MacKenzie, Robert A., Snels, Marcel, A. Oulanovsky, Cairo, F., Buontempo, C, Buontempo, Carlo, Volk, M., R. Matthey, Rudakov, S., Mitev, V, Mackenzie, Angus; id_orcid, Snels, M., Matthey, R., C. Schiller, Mitev, V., Qulanovsky, A., Volk, CM, A. R. MacKenzie, Volk, C.-Michael, Di Donfrancesco, G., Schiller, Cornelius, C. M. Volk, Cagnazzo, C., Di Donfrancesco, G, F. Cairo, C. Buontempo, Oulanovsky, A., Stefanutti, Leopoldo, Cairo, Francesco, Cagnazzo, Chiara, A. Adriani, Buontempo, C., Ravegnani, F, Matthey, R, Oulanovsky, Alexey, V. Mitev, MacKenzie, A. R., Yushkov, V., Ravegnani, F., Stefanutti, L, F. Ravegnani, Volk, C. M., Adriani, A, Ravegnani, Fabrizio, L. Stefanutti, Oulanovsky, A, Adriani, Alberto, Stefanutti, L., Matthey-De-L'Endroit, Renaud, Cairo, F, Matthey, Renaud, G. Di Donfrancesco, Mitev, Valentin   +63 more
core   +2 more sources

Stratospheric ozone depletion [PDF]

Philosophical Transactions of the Royal Society B: Biological Sciences, 1991
Solar ultraviolet radiation creates an ozone layer in the atmosphere which in turn completely absorbs the most energetic fraction of this radiation. This process both warms the air, creating the stratosphere between 15 and 50 km altitude, and protects the biological activities at the Earth's surface from this damaging radiation. In
openaire   +2 more sources

Quantifying transport into the lowermost stratosphere using simultaneous in-situ measurements of SF₆ and CO₂ [PDF]

, 2008
The seasonality of transport and mixing of air into the lowermost stratosphere (LMS) is studied using distributions of mean age of air and a mass balance approach, based on in-situ observations of SF6 and CO2 during the SPURT (Spurenstofftransport in der
Bönisch, Harald, Curtius, Joachim, Birner, Thomas, Engel, Andreas, Hoor, Peter   +4 more
core   +1 more source

Retrieving the age of air spectrum from tracers: principle and method [PDF]

Atmospheric Chemistry and Physics, 2019
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
doaj   +1 more source