Valentin Lauther

Transport of anthropogenic CH 2 Cl 2 -rich air from Asia across the North Pacific

Wolfgang Woiwode, Bärbel Vogel, Valentin Lauther, Jens‐Uwe Grooß et autres

Abstract. Dichloromethane (CH2Cl2) is emitted mainly anthropogenically and suspected to delay stratospheric ozone recovery. We present in detail the first retrievals of mesoscale 2D distributions of CH2Cl2 from infrared limb observations. The airborne remote sensing instrument GLORIA-AB (Gimballed Limb Observer for Radiance …

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Aerosol from the Asian monsoon ubiquitous throughout the extratropical stratosphere

Franziska Köllner, Matthias Kohl, Fatih Ekinci, Oliver Eppers et autres

Asian summer monsoon (ASM) convection efficiently transports surface emissions into the upper troposphere, leading to the formation of the Asian tropopause aerosol layer (ATAL).The ATAL can affect Earth's climate directly by scattering solar radiation and indirectly by cloud formation.Little is known about …

Continental and marine source regions contributing to the outflow of the Asian summer monsoon anticyclone during the PHILEAS campaign in summer 2023

Bärbel Vogel, Valentin Lauther, Franziska Köllner, Fatih Ekinci et autres

Abstract. During the PHILEAS aircraft campaign, which probed the export of air from the Asian summer monsoon anticyclone (ASMA), observations were carried out from Germany and Alaska during August and September 2023. The flights from Germany sampled the western part of the …

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Empirical air mass budgets in the winter-spring lower stratosphere from in-situ measurements during ASCCI, SouthTRAC and POLSTRACC missions

Peter Hoor, Franziska Weyland, Vera Bense, Heiko Bozem et autres

The composition of the UTLS plays a critical role in shaping Earth’s radiation budget, large-scale dynamics, and not least surface weather and air quality. Yet, its high spatiotemporal variability - driven by diverse transport and mixing pathways on different time scales - …

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Transport and mixing of pollutants into the Arctic LMS derived from HAGAR-V in situ observations of a wide range of trace gases during the HALO ASCCI mission

Johannes Strobel, Ronja van Luijt, Valentin Lauther, Franziska Weyland et autres

Transport and mixing strongly determine the trace gas composition of the Arctic upper troposphere / lower stratosphere (UTLS), but spatial and temporal variability of the relevant processes are still not well quantified. The Arctic lowermost stratosphere (LMS) is fed via, and thus …

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Aerosol from the Asian monsoon ubiquitous throughout the extratropical stratosphere

Franziska Köllner, Matthias Kohl, Fatih Ekinci, Oliver Eppers et autres

Asian summer monsoon (ASM) convection efficiently transports surface emissions into the upper troposphere, leading to the formation of the Asian tropopause aerosol layer (ATAL). The ATAL can affect Earth’s climate directly by scattering solar radiation and indirectly by cloud formation. Little is …

de (code pays fourni par la source)

Review of Vogel et al.: Continental and marine source regions contributing to the outflow of the Asian summer monsoon anticyclone during the PHILEAS campaign in summer 2023

Bärbel Vogel, Valentin Lauther, Franziska Köllner, Fatih Ekinci et autres

Abstract. During the PHILEAS aircraft campaign, which probed the export of air from the Asian summer monsoon anticyclone (ASMA), observations were carried out from Germany and Alaska during August and September 2023. The flights from Germany sampled the western part of the …

de (code pays fourni par la source)

Comment on egusphere-2025-5609

Bärbel Vogel, Valentin Lauther, Franziska Köllner, Fatih Ekinci et autres

Abstract. During the PHILEAS aircraft campaign, which probed the export of air from the Asian summer monsoon anticyclone (ASMA), observations were carried out from Germany and Alaska during August and September 2023. The flights from Germany sampled the western part of the …

de (code pays fourni par la source)

Tracing elevated abundance of CH 2 Cl 2 in the subarctic upper troposphere to the Asian Summer Monsoon

Markus Jesswein, Valentin Lauther, Nicolas Emig, Peter Michael Hoor et autres

The Asian Summer Monsoon (ASM) is a seasonal weather pattern characterized by heavy rains and winds, mainly affecting South and Southeast Asia during the summer months. The deep convection within the ASM is an important transport process for pollutants from the planetary …

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Long-Range Transport of Polluted Asian Summer Monsoon Air to High Latitudes during the PHILEAS Campaign in the Boreal Summer 2023

Martin Riese, Peter Michael Hoor, Christian Rolf, Daniel Kunkel et autres

Abstract The Asian summer monsoon establishes a strong connection between near-surface pollution in Southeast Asia and the global atmosphere by linking local emission sources with the large-scale circulation. There is a strong impact on the extratropical lower stratosphere, which is thought to …

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Two-dimensional observations of dichloromethane-rich air masses transported from the Asian summer monsoon region across the North Pacific

Wolfgang Woiwode, Jens‐Uwe Grooß, Valentin Lauther, Sören Johansson et autres

Dichloromethane (CH2Cl2) is known to be emitted by industrial processes and suspected to be capable of delaying the recovery of the stratospheric ozone layer significantly. A rapid rise of its global emissions over the last decades, with the majority being located in …

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Enhanced inorganic iodine in the upper troposphere potentially driven by elevated emission and/or fast vertical transport by tropical cyclone

Karolin Voss, Benjamin Weyland, André Butz, Valentin Lauther et autres

Halogens are known to deplete ozone both in the troposphere and stratosphere. As the source distribution and thus the local contribution of chlorine and bromine containing species to atmospheric ozone depletion is reasonably well known, the respective role of iodine containing species …

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