Concept
Noyau de condensation
Publications associées (245)
New Particle Formation Events Can Reduce Cloud Droplets in Boundary Layer Clouds at the Continental Scale
Athanasios Nenes, Spyros Pandis
New particle formation (NPF) substantially contributes to global cloud condensation nuclei (CCN), and their climate impacts. Individual NPF events are also thought to increase local CCN, cloud droplet number (CDN), and cloud albedo. High resolution simulat ...
Washington2024Characteristics and sources of fluorescent aerosols in the central Arctic Ocean
Julia Schmale, Ivo Fabio Beck, Benjamin Jérémy Laurent Heutte, Jakob Boyd Pernov, Nora Bergner, Oliver Müller, Alireza Moallemi, Hélène Paule Angot, Markus Frey, Margarida Teles Nogueira Rolo
The Arctic is sensitive to cloud radiative forcing. Due to the limited number of aerosols present throughout much of the year, cloud formation is susceptible to the presence of cloud condensation nuclei and ice nucleating particles (INPs). Primary biologic ...
2024Highly Hygroscopic Aerosols Facilitate Summer and Early‐Autumn Cloud Formation at Extremely Low Concentrations Over the Central Arctic Ocean
Julia Schmale, Andrea Baccarini
Arctic clouds are sensitive to atmospheric particles since these are sometimes in such low concentrations that clouds cannot always form under supersaturated water vapor conditions. This is especially true in the late summer, when aerosol concentrations ar ...
2024Simulations of primary and secondary ice production during an Arctic mixed-phase cloud case from the Ny-Ålesund Aerosol Cloud Experiment (NASCENT) campaign
Georgia Sotiropoulou, Paraskevi Georgakaki
The representation of Arctic clouds and their phase distributions, i.e., the amount of ice and supercooled water, influences predictions of future Arctic warming. Therefore, it is essential that cloud phase is correctly captured by models in order to accur ...
Copernicus Gesellschaft Mbh2024Glucose Enhances Salinity-Driven Sea Spray Aerosol Production in Eastern Arctic Waters
Athanasios Nenes, Julia Schmale, André Welti, Guangyu Li
Sea spray aerosols (SSA) greatly affect the climate system by scattering solar radiation and acting as seeds for cloud droplet formation. The ecosystems in the Arctic Ocean are rapidly changing due to global warming, and the effects these changes have on t ...
2024The Influence of the Planetary Boundary Layer on the Atmospheric State at an Orographic Site at the Eastern Mediterranean
Athanasios Nenes, Romanos Foskinis, Kunfeng Gao
We studied the influence of the Planetary Boundary Layer (PBL) on the air masses sampled at the mountaintop Hellenic Atmospheric Aerosol and Climate Change station ((HAC) 2 ) at Mount Helmos (Greece) during the Cloud-AerosoL InteractionS in the Helmos back ...
Stockholm Univ Press2024Parity in bacterial communities and resistomes: Microplastic and natural organic particles in the Tyrrhenian Sea
Florian Frédéric Vincent Breider, Sylvain Coudret
Petroleum-based microplastic particles (MPs) are carriers of antimicrobial resistance genes (ARGs) in aquatic environments, influencing the selection and spread of antimicrobial resistance. This research characterized MP and natural organic particle (NOP) ...
2024The molecular scale mechanism of deposition ice nucleation on silver iodide
Athanasios Nenes, Mária Lbadaoui-Darvas, André Welti
Heterogeneous ice nucleation is a ubiquitous process in the natural and built environment. Deposition ice nucleation, i.e. heterogeneous ice nucleation that - according to the traditional view - occurs in a subsaturated water vapor environment and in the a ...
Royal Soc Chemistry2024Measurement report: High Arctic aerosol hygroscopicity at sub- and supersaturated conditions during spring and summer
Aerosol hygroscopic growth and cloud droplet formation influence the radiation transfer budget of the atmosphere and thereby the climate. In the Arctic, these aerosol properties may have a more pronounced effect on the climate compared to the midlatitudes. ...
2023Arctic warming by abundant fine sea salt aerosols from blowing snow
Jian Wang, Julia Schmale, Nora Bergner, Xin Yang, Markus Frey
The Arctic warms nearly four times faster than the global average, and aerosols play an increasingly important role in Arctic climate change. In the Arctic, sea salt is a major aerosol component in terms of mass concentration during winter and spring. Howe ...
2023