Thomas Leisner
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View article: A novel aerosol filter sampler for measuring the vertical distribution of ice-nucleating particles via fixed-wing uncrewed aerial vehicles
A novel aerosol filter sampler for measuring the vertical distribution of ice-nucleating particles via fixed-wing uncrewed aerial vehicles Open
A mobile sampler for collecting aerosol particles on an uncrewed aerial vehicle (UAV) was developed and tested during three consecutive Pallas cloud experiment campaigns in the vicinity of the Sammaltunturi Global Atmosphere Watch site (67…
View article: Key Gaps in Models' Physical Representation of Climate Intervention and Its Impacts
Key Gaps in Models' Physical Representation of Climate Intervention and Its Impacts Open
Solar radiation modification (SRM) is increasingly discussed as a potential method to ameliorate some negative effects of climate change. However, unquantified uncertainties in physical and environmental impacts of SRM impede informed deba…
View article: Measurement of the ice-nucleating particle concentration using a mobile filter-based sampler on-board of a fixed-wing uncrewed aerial vehicle during the Pallas Cloud Experiment 2022
Measurement of the ice-nucleating particle concentration using a mobile filter-based sampler on-board of a fixed-wing uncrewed aerial vehicle during the Pallas Cloud Experiment 2022 Open
A novel filter-based sampler was deployed during the Pallas Cloud Experiment (PaCE) 2022 for a one-month period in September and October 2022 in Finnish Lapland around 5 km north of the Sammaltunturi station. This area frequently features …
View article: Measurement report: Brown carbon aerosol in rural Germany – sources, chemistry, and diurnal variations
Measurement report: Brown carbon aerosol in rural Germany – sources, chemistry, and diurnal variations Open
Brown carbon aerosol (BrC) is a major contributor to atmospheric air pollution in Europe, especially in winter. Therefore, we studied the chemical composition, diurnal variation, and sources of BrC from 17 February to 16 March 2021 at a ru…
View article: Characterization of biogenic volatile organic compounds and their oxidation products in a stressed spruce-dominated forest close to a biogas power plant
Characterization of biogenic volatile organic compounds and their oxidation products in a stressed spruce-dominated forest close to a biogas power plant Open
Biogenic volatile organic compounds (BVOCs) are key components of the atmosphere, playing a significant role in the formation of organic aerosols (OAs). However, only a few studies have simultaneously examined the characteristics of BVOCs …
View article: Aerosol composition, air quality, and boundary layer dynamics in the urban background of Stuttgart in winter
Aerosol composition, air quality, and boundary layer dynamics in the urban background of Stuttgart in winter Open
Aerosol distributions are of great relevance for air quality, especially for cities like Stuttgart, which has limited air exchange due to its location in a basin. We collected a comprehensive set of data from remote sensing and in situ met…
View article: A novel aerosol filter sampler for measuring the vertical distribution of ice-nucleating particles via fixed-wing uncrewed aerial vehicles
A novel aerosol filter sampler for measuring the vertical distribution of ice-nucleating particles via fixed-wing uncrewed aerial vehicles Open
A mobile sampler for the collection of aerosol particles on an uncrewed aerial vehicle (UAV) was developed and deployed during three consecutive Pallas Cloud Experiment campaigns in the vicinity of the Sammaltunturi Global Atmosphere Watch…
View article: CIB1: a small protein with big ambitions
CIB1: a small protein with big ambitions Open
Calcium- and integrin-binding protein 1 (CIB1) is a small, ubiquitously expressed protein that was first identified as an intracellular binding partner of a platelet-specific α-integrin cytoplasmic tail. Although early studies revealed a r…
View article: Comment on egusphere-2024-1848
Comment on egusphere-2024-1848 Open
Abstract. Brown carbon aerosol (BrC) is one major contributor to atmospheric air pollution in Europe, especially in winter. Therefore, we studied the chemical composition, diurnal variation, and sources of BrC from 17th February to 16th Ma…
View article: In silico fragment-based discovery of CIB1-directed anti-tumor agents by FRASE-bot
In silico fragment-based discovery of CIB1-directed anti-tumor agents by FRASE-bot Open
Chemical probes are an indispensable tool for translating biological discoveries into new therapies, though are increasingly difficult to identify since novel therapeutic targets are often hard-to-drug proteins. We introduce FRASE-based hi…
View article: Characterization of biogenic volatile organic compounds and their oxidation products at a stressed pine forest close to a biogas power plant
Characterization of biogenic volatile organic compounds and their oxidation products at a stressed pine forest close to a biogas power plant Open
In this study, we present real-time measurements of organic aerosol (OA) and biogenic volatile organic compounds (BVOCs) at a pine forest stressed by bark beetles and previous droughts close to a biogas power plant (BPP) in western Germany…
View article: Brown carbon aerosol in rural Germany: sources, chemistry, and diurnal variations
Brown carbon aerosol in rural Germany: sources, chemistry, and diurnal variations Open
Brown carbon aerosol (BrC) is one major contributor to atmospheric air pollution in Europe, especially in winter. Therefore, we studied the chemical composition, diurnal variation, and sources of BrC from 17th February to 16th March at a r…
View article: Sources of organic gases and aerosol particles and their roles in nighttime particle growth at a rural forested site in southwest Germany
Sources of organic gases and aerosol particles and their roles in nighttime particle growth at a rural forested site in southwest Germany Open
The composition, sources and chemical transformation of volatile organic compounds (VOCs) and organic aerosol (OA) particles were investigated during July–August 2021 at a rural forested site in southwest Germany, 10 km north of the city o…
View article: Comparison of scanning aerosol lidar and in situ measurements of aerosol physical properties and boundary layer heights
Comparison of scanning aerosol lidar and in situ measurements of aerosol physical properties and boundary layer heights Open
The spatiotemporal distribution of aerosol particles in the atmosphere has a great impact on radiative transfer, clouds, and air quality. Modern remote sensing methods, as well as airborne in situ measurements by unpiloted aerial vehicles …
View article: Secondary ice production – no evidence of efficient rime-splintering mechanism
Secondary ice production – no evidence of efficient rime-splintering mechanism Open
Mixed-phase clouds are essential for Earth’s weather and climate system. Ice multiplication via secondary ice production (SIP) is thought to be responsible for the observed strong increase in ice particle number concentration in mixed-phas…
View article: Using cloud chamber experiments and numerical simulations to investigate the complexities of cirrus cloud thinning effectiveness
Using cloud chamber experiments and numerical simulations to investigate the complexities of cirrus cloud thinning effectiveness Open
In this study, we present a series of systematic AIDA cloud chamber experiments investigating the cloud microphysics governing cirrus cloud thinning effectiveness (i.e., the competition between heterogeneous and homogeneous ice nucleation)…
View article: Comment on egusphere-2024-90
Comment on egusphere-2024-90 Open
Abstract. Aerosol distribution is of great relevance for air quality especially for the cities like Stuttgart which is located in a basin. To understand the impact of boundary layer mixing processes on local air quality and to validate the…
View article: Molecular analysis of secondary organic aerosol and brown carbon from the oxidation of indole
Molecular analysis of secondary organic aerosol and brown carbon from the oxidation of indole Open
Indole (ind) is a nitrogen-containing heterocyclic volatile organic compound commonly emitted from animal husbandry and from different plants like maize with global emissions of 0.1 Tg yr−1. The chemical composition and optical properties …
View article: Comment on ar-2024-3
Comment on ar-2024-3 Open
Abstract. The spatial-temporal distribution of aerosol particles in the atmosphere has a great impact on radiative transfer, clouds, and air quality. Modern remote sensing methods as well as airborne in-situ measurements by unmanned aerial…
View article: Comment on ar-2024-3
Comment on ar-2024-3 Open
Abstract. The spatial-temporal distribution of aerosol particles in the atmosphere has a great impact on radiative transfer, clouds, and air quality. Modern remote sensing methods as well as airborne in-situ measurements by unmanned aerial…
View article: Breakup of liquid jets: Thermodynamic perspectives
Breakup of liquid jets: Thermodynamic perspectives Open
Breakup of a liquid jet into a chain of droplets is common in nature and industry. Previous researchers developed profound mathematic and fluid dynamic models to address this breakup phenomenon starting from tiny perturbations. However, th…
View article: Comparison of scanning aerosol LIDAR and in-situ measurements of aerosol physical properties and boundary layer heights
Comparison of scanning aerosol LIDAR and in-situ measurements of aerosol physical properties and boundary layer heights Open
The spatial-temporal distribution of aerosol particles in the atmosphere has a great impact on radiative transfer, clouds, and air quality. Modern remote sensing methods as well as airborne in-situ measurements by unmanned aerial vehicles …
View article: Aerosol composition, air quality, and boundary layer dynamics in the urban background of Stuttgart in winter
Aerosol composition, air quality, and boundary layer dynamics in the urban background of Stuttgart in winter Open
Aerosol distribution is of great relevance for air quality especially for the cities like Stuttgart which is located in a basin. To understand the impact of boundary layer mixing processes on local air quality and to validate the large edd…