Global atmospheric particle formation from CERN CLOUD measurements

@article{Dunne2016GlobalAP,
  title={Global atmospheric particle formation from CERN CLOUD measurements},
  author={Eimear M. Dunne and Hamish Gordon and Andreas K{\"u}rten and Jo{\~a}o Almeida and Jonathan Duplissy and Christina J. Williamson and Ismael K. Ortega and Kirsty J. Pringle and Alexey Adamov and Urs Baltensperger and Peter Barmet and François Benduhn and Federico Bianchi and Martin Breitenlechner and Antony D. Clarke and Joachim Curtius and Josef Dommen and Neil M. Donahue and Sebastian Ehrhart and Richard C. Flagan and Alessandro Franchin and Roberto Guida and Jani P Hakala and Armin Hansel and Martin Heinritzi and Tuija Jokinen and Juha Kangasluoma and Jasper Kirkby and Markku Kulmala and Agnieszka Kupc and Michael J. Lawler and Katrianne Lehtipalo and Vladimir Makhmutov and Graham W. Mann and Serge Mathot and Joonas Merikanto and Pasi P.J. Miettinen and Athanasios Nenes and Antti Onnela and Alexandru Rap and Carly L. S. Reddington and Francesco Riccobono and Nigel A. D. Richards and Matti P. Rissanen and Linda Rondo and Nina Sarnela and Siegfried Schobesberger and Kamalika Sengupta and Mario Simon and Mikko Sipil{\"a} and James Norman Smith and Yu.I. Stozkhov and Ant{\'o}nio Tom{\'e} and Jasmin Tr{\"o}stl and Paul E. Wagner and Daniela Wimmer and Paul M. Winkler and Douglas R. Worsnop and Kenneth S. Carslaw},
  journal={Science},
  year={2016},
  volume={354},
  pages={1119 - 1124}
}
Observations made in the CLOUD chamber at CERN illuminate atmospheric particle formation. How new particles form New particle formation in the atmosphere produces around half of the cloud condensation nuclei that seed cloud droplets. Such particles have a pivotal role in determining the properties of clouds and the global radiation balance. Dunne et al. used the CLOUD (Cosmics Leaving Outdoor Droplets) chamber at CERN to construct a model of aerosol formation based on laboratory-measured… 
Ion-induced sulfuric acid–ammonia nucleation drives particle formation in coastal Antarctica
TLDR
It is shown that ion-induced nucleation is the dominant particle formation mechanism, implying that galactic cosmic radiation plays a key role in new particle formation in the pristine Antarctic atmosphere.
New Particle Formation in the Atmosphere: From Molecular Clusters to Global Climate
New particle formation (NPF) represents the first step in the complex processes leading to formation of cloud condensation nuclei. Newly formed nanoparticles affect human health, air quality,
Role of gas–molecular cluster–aerosol dynamics in atmospheric new-particle formation
New-particle formation from vapors through molecular cluster formation is a central process affecting atmospheric aerosol and cloud condensation nuclei numbers, and a significant source of
A large source of cloud condensation nuclei from new particle formation in the tropics
TLDR
It is found that NPF persists at all longitudes as a global-scale band in the tropical upper troposphere, covering about 40 per cent of Earth’s surface, and is a globally important source of cloud condensation nuclei in the lower tropospheric, affecting cloud properties.
New particle formation leads to cloud dimming
New particle formation (NPF), nucleation of condensable vapors to the solid or liquid phase, contributes significantly to atmospheric aerosol particle number concentrations. With sufficient growth,
Differing Mechanisms of New Particle Formation at Two Arctic Sites
New particle formation in the Arctic atmosphere is an important source of aerosol particles. Understanding the processes of Arctic secondary aerosol formation is crucial due to their significant
Aerosol characteristics and particle production in the upper troposphere over the Amazon Basin
<p>Particle production in the upper troposphere has been reported as an important source of aerosol particles and cloud condensation nuclei in pristine environment and tropical regions and exerts
Formation and growth of sub-3-nm aerosol particles in experimental chambers
TLDR
This protocol describes the instrumentation and analysis methods needed to quantify particles dynamics during new particle formation of sub-3-nm aerosol particles in chamber experiments and outlines methods to directly quantify particle dynamics for cluster sizes.
Experimental particle formation rates spanning tropospheric sulfuric acid and ammonia abundances, ion production rates, and temperatures
Binary nucleation of sulfuric acid and water as well as ternary nucleation involving ammonia are thought to be the dominant processes responsible for new particle formation (NPF) in the cold
Investigation of New Particle Formation mechanisms and aerosol processes at the Marambio Station, Antarctic Peninsula
Abstract. Understanding chemical processes leading to the formation of atmospheric aerosol particles is crucial to improve our capabilities in predicting the future climate. However, those mechanisms
...
...

References

SHOWING 1-10 OF 162 REFERENCES
Oxidation Products of Biogenic Emissions Contribute to Nucleation of Atmospheric Particles
TLDR
It is shown, in experiments performed with the CLOUD (Cosmics Leaving Outdoor Droplets) chamber at CERN, that sulfuric acid and oxidized organic vapors at atmospheric concentrations reproduce particle nucleation rates observed in the lower atmosphere.
Role of sulphuric acid, ammonia and galactic cosmic rays in atmospheric aerosol nucleation
TLDR
First results from the CLOUD experiment at CERN are presented, finding that atmospherically relevant ammonia mixing ratios of 100 parts per trillion by volume, or less, increase the nucleation rate of sulphuric acid particles more than 100–1,000-fold and ion-induced binary nucleation of H2SO4–H2O can occur in the mid-troposphere but is negligible in the boundary layer.
Aerosol nucleation and its role for clouds and Earth's radiative forcing in the aerosol-climate model ECHAM5-HAM
Abstract. Nucleation from the gas phase is an important source of aerosol particles in the Earth's atmosphere, contributing to the number of cloud condensation nuclei, which form cloud droplets. We
Molecular understanding of sulphuric acid–amine particle nucleation in the atmosphere
TLDR
The results show that, in regions of the atmosphere near amine sources, both amines and sulphur dioxide should be considered when assessing the impact of anthropogenic activities on particle formation.
Impact of nucleation on global CCN
Abstract. Cloud condensation nuclei (CCN) are derived from particles emitted directly into the atmosphere (primary emissions) or from the growth of nanometer-sized particles nucleated in the
Can cosmic rays affect cloud condensation nuclei by altering new particle formation rates?
Although controversial, many observations have suggested that low‐level cloud cover correlates with the cosmic ray flux. Because galactic cosmic rays have likely decreased in intensity over the last
Experimental particle formation rates spanning tropospheric sulfuric acid and ammonia abundances, ion production rates, and temperatures
Binary nucleation of sulfuric acid and water as well as ternary nucleation involving ammonia are thought to be the dominant processes responsible for new particle formation (NPF) in the cold
Simulation of particle size distribution with a global aerosol model: contribution of nucleation to aerosol and CCN number concentrations
Abstract. An advanced particle microphysics model with a number of computationally efficient schemes has been incorporated into a global chemistry transport model (GEOS-Chem) to simulate particle
On the composition of ammonia–sulfuric-acid ion clusters during aerosol particle formation
Abstract. The formation of particles from precursor vapors is an important source of atmospheric aerosol. Research at the Cosmics Leaving OUtdoor Droplets (CLOUD) facility at CERN tries to elucidate
Decreasing particle number concentrations in a warming atmosphere and implications
Abstract. New particle formation contributes significantly to the number concentration of condensation nuclei (CN) as well as cloud CN (CCN), a key factor determining aerosol indirect radiative
...
...