Results 21 to 30 of about 617,235 (290)

Effects of pre-existing ice crystals on cirrus clouds and comparison between different ice nucleation parameterizations with the Community Atmosphere Model (CAM5) [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
In order to improve the treatment of ice nucleation in a more realistic manner in the Community Atmosphere Model version 5.3 (CAM5.3), the effects of pre-existing ice crystals on ice nucleation in cirrus clouds are considered. In addition, by considering
X. Shi, X. Liu, K. Zhang
doaj   +1 more source

Heterogeneous ice nucleation on dust particles sourced from nine deserts worldwide – Part 1: Immersion freezing [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
Desert dust is one of the most abundant ice nucleating particle types in the atmosphere. Traditionally, clay minerals were assumed to determine the ice nucleation ability of desert dust and constituted the focus of ice nucleation studies over several ...
Y. Boose   +11 more
doaj   +1 more source

Anthropogenic Aerosols Effects on Ice Clouds: A Review

open access: yesAtmosphere, 2022
Since the ability of anthropogenic aerosols to act as ice nucleation particles has been recognized, the effect of anthropogenic aerosols on ice clouds has attracted increasing attentions.
Yang Yang, Run Liu
doaj   +1 more source

Ice nucleation ability of ammonium sulfate aerosol particles internally mixed with secondary organics [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
The abundance of aerosol particles and their ability to catalyze ice nucleation are key parameters to correctly understand and describe the aerosol indirect effect on the climate.
B. Bertozzi   +7 more
doaj   +1 more source

Homogeneous ice nucleation in adsorbed water films: a theoretical approach [PDF]

open access: yesAtmospheric Chemistry and Physics
Ice nucleation plays a critical role in cloud formation and atmospheric processes, influencing precipitation and climate. In this study, we present a theoretical approach for describing homogeneous ice nucleation within adsorbed water films on insoluble ...
A. Laaksonen   +4 more
doaj   +1 more source

Perspectives on the Future of Ice Nucleation Research: Research Needs and Unanswered Questions Identified from Two International Workshops

open access: yesAtmosphere, 2017
There has been increasing interest in ice nucleation research in the last decade. To identify important gaps in our knowledge of ice nucleation processes and their impacts, two international workshops on ice nucleation were held in Vienna, Austria in ...
Ivan Coluzza   +23 more
doaj   +1 more source

Homogeneous and heterogeneous ice nucleation at LACIS: operating principle and theoretical studies [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
At the Leipzig Aerosol Cloud Interaction Simulator (LACIS) experiments investigating homogeneous and heterogeneous nucleation of ice (particularly immersion freezing in the latter case) have been carried out.
S. Hartmann   +7 more
doaj   +1 more source

SPIN modification for low-temperature experiments [PDF]

open access: yesAtmospheric Measurement Techniques, 2020
The SPectrometer for Ice Nuclei (SPIN) has been modified to access ice nucleation at low temperatures. The modification consists of a reconfiguration of components from SPIN's cooling system to provide refrigerant with a low boiling point to the chamber.
A. Welti   +7 more
doaj   +1 more source

Deposition freezing, pore condensation freezing and adsorption: three processes, one description? [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Heterogeneous ice nucleation impacts the hydrological cycle and climate through affecting cloud microphysical state and radiative properties. Despite decades of research, a quantitative description and understanding of heterogeneous ice nucleation ...
M. Lbadaoui-Darvas   +4 more
doaj   +1 more source

Cirrus parameterisation and the role of ice nuclei. [PDF]

open access: yes, 2005
A parametrization of cirrus clouds formed by homogeneous nucleation is improved so that it can be used more easily in general-circulation models (GCMs) and climate models.
Ren, C., MacKenzie, Rob
core   +4 more sources

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