Search Results - "Keber, Timo"

Characterization and operation of a multi-channel Condensation Particle Counter (mc-CPC) for aircraft-based measurements.

Authors: Richter, Sarah Keber, Timo Heinritzi, Martin et al.

Source: Atmospheric Measurement Techniques. 2026, Vol. 19 Issue 3, p1093-1116. 24p.

Organic aerosols mixing across the tropopause and its implication for anthropogenic pollution of the UTLS.

Authors: Breuninger, Anna Joppe, Philipp Wilsch, Jonas et al.

Source: Atmospheric Chemistry & Physics. 2025, Vol. 25 Issue 22, p16533-16551. 19p.

The extratropical tropopause – trace gas perspective on tropopause definition choice.

Authors: Bauchinger, Sophie Engel, Andreas Jesswein, Markus et al.

Source: Atmospheric Chemistry & Physics. 2025, Vol. 25 Issue 21, p14167-14186. 20p.

Vertical distribution of halogenated trace gases in the summer Arctic stratosphere based on two independent air sampling methods.

Authors: Laube, Johannes C. Schuck, Tanja J. Baartman, Sophie et al.

Source: Atmospheric Measurement Techniques. 2025, Vol. 18 Issue 16, p4087-4102. 16p.

Tracing elevated abundance of CH2Cl2 in the subarctic upper troposphere to the Asian Summer Monsoon.

Authors: Jesswein, Markus Lauther, Valentin Emig, Nicolas et al.

Source: Atmospheric Chemistry & Physics. 2025, Vol. 25 Issue 14, p8107-8126. 20p.

Measurement report: Greenhouse gas profiles and age of air from the 2021 HEMERA-TWIN balloon launch.

Authors: Schuck, Tanja J. Degen, Johannes Keber, Timo et al.

Source: Atmospheric Chemistry & Physics. 2025, Vol. 25 Issue 7, p4333-4348. 16p.

The interhemispheric gradient of SF6 in the upper troposphere.

Authors: Schuck, Tanja J. Degen, Johannes Hintsa, Eric et al.

Source: EGUsphere; 8/24/2023, p1-25, 25p

The interhemispheric gradient of SF6 in the upper troposphere.

Authors: Schuck, Tanja J. Degen, Johannes Hintsa, Eric et al.

Source: Atmospheric Chemistry & Physics Discussions. 8/24/2023, p1-25. 25p.

Bromine from short-lived source gases in the extratropical northern hemispheric upper troposphere and lower stratosphere (UTLS).

Authors: Keber, Timo Bönisch, Harald Hartick, Carl et al.

Source: Atmospheric Chemistry & Physics. 4/1/2020, Vol. 20 Issue 7, p4105-4132. 28p. 5 Charts, 13 Graphs, 2 Maps.

The interhemispheric gradient of SF6 in the upper troposphere.

Authors: Schuck, Tanja J. Degen, Johannes Hintsa, Eric et al.

Source: Atmospheric Chemistry & Physics. 2024, Vol. 24 Issue 1, p689-705. 17p.

Mass spectrometric measurements of ambient ions and estimation of gaseous sulfuric acid in the free troposphere and lowermost stratosphere during the CAFE-EU/BLUESKY campaign.

Authors: Zauner-Wieczorek, Marcel Heinritzi, Martin Granzin, Manuel et al.

Source: Atmospheric Chemistry & Physics Discussions. 4/21/2022, p1-23. 23p.

Mean age from observations in the lowermost stratosphere: an improved method and interhemispheric differences.

Authors: Wagenhäuser, Thomas Jesswein, Markus Keber, Timo et al.

Source: Atmospheric Chemistry & Physics. 2023, Vol. 23 Issue 7, p3887-3903. 17p.

A versatile, refrigerant- and cryogen-free cryofocusing–thermodesorption unit for preconcentration of traces gases in air.

Authors: Obersteiner, Florian Keber, Timo Engel, Andreas et al.

Source: Atmospheric Measurement Techniques. 2016, Vol. 9 Issue 11, p5265-5279. 15p. 2 Color Photographs, 4 Charts, 6 Graphs.

Global seasonal distribution of CH2Br2 and CHBr3 in the upper troposphere and lower stratosphere.

Authors: Jesswein, Markus Fernandez, Rafael P. Berná, Lucas et al.

Source: Atmospheric Chemistry & Physics Discussions. 7/19/2022, p1-36. 36p.

Comparison of inorganic chlorine in the Antarctic and Arctic lowermost stratosphere by separate late winter aircraft measurements.

Authors: Jesswein, Markus Bozem, Heiko Lachnitt, Hans-Christoph et al.

Source: Atmospheric Chemistry & Physics. 2021, Vol. 21 Issue 23, p17225-17241. 17p.

Cloud-scale modelling of the impact of deep convection on the fate of oceanic bromoform in the troposphere: a case study over the west coast of Borneo.

Authors: Hamer, Paul D. Marécal, Virginie Hossaini, Ryan et al.

Source: Atmospheric Chemistry & Physics. 2021, Vol. 21 Issue 22, p16955-16984. 30p.

Organic and inorganic bromine measurements around the extratropical tropopause and lowermost stratosphere: insights into the transport pathways and total bromine.

Authors: Rotermund, Meike K. Bense, Vera Chipperfield, Martyn P. et al.

Source: Atmospheric Chemistry & Physics. 2021, Vol. 21 Issue 20, p15375-15407. 33p.

Comparison of Inorganic Chlorine in the Southern Hemispheric lowermost stratosphere during Late Winter 2019.

Authors: Jesswein, Markus Bozem, Heiko Lachnitt, Hans-Christoph et al.

Source: Atmospheric Chemistry & Physics Discussions. 5/28/2021, p1-27. 27p.

A convolution of observational and model data to estimate age of air spectra in the northern hemispheric lower stratosphere.

Authors: Hauck, Marius Bönisch, Harald Hoor, Peter et al.

Source: Atmospheric Chemistry & Physics. 2020, Vol. 20 Issue 14, p8763-8785. 23p. 1 Diagram, 2 Charts, 6 Graphs, 1 Map.

Mixing and ageing in the polar lower stratosphere in winter 2015-2016.

Authors: Krause, Jens Hoor, Peter Engel, Andreas et al.

Source: Atmospheric Chemistry & Physics. 2018, Vol. 18 Issue 8, p6057-6073. 17p. 1 Color Photograph, 13 Graphs.