Characterization of Atmospheric Aerosols and Their Effects, from Observation to Model Studies

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Aerosols".

Deadline for manuscript submissions: closed (15 June 2023) | Viewed by 2413

Special Issue Editors

Department of Geophysics, Tel Aviv University, Tel-Aviv 6997801, Israel
Interests: aerosol physical properties; cloud; aerosol-cloud interactions; climate
Special Issues, Collections and Topics in MDPI journals
Department of Geophysics, Tel Aviv University, Tel-Aviv 6997801, Israel
Interests: aerosols optical properties; radiation; climate

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Guest Editor
NASA Ames Research Center, Moffett Field, CA 94035, USA
Interests: aerosols, microscopy, spectroscopy
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
College of Meteorology and Oceanography, National University of Defense Technology, Changsha 410073, China
Interests: aerosol data assimilation; atmospheric chemistry simulation; AOD inversion
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Atmospheric aerosols are composed of solid and liquid particles of varying composition and mixing states. The World Health Organization (WHO) estimates that air pollution from fine aerosols is responsible for 4.2 million fatalities per year, highlighting their impact on human health. Aerosols affect regional and global climate by scattering and absorbing incoming solar radiation. They can also affect clouds by acting as cloud condensation nuclei (CCN) and ice nuclei (IN), impacting the number and size of cloud droplets, cloud lifetimes, precipitation, and ultimately climate. The latest IPCC report shows that aerosols contributed to global temperature reductions in 2010–2019 compared to pre-industrial levels. However, the magnitude of the cooling due to aerosols is highly uncertain, ranging from 0 to 0.8 °C, reflecting the important yet uncertain role of aerosols on climate. As aerosols have numerous sources and different mechanisms, their chemical composition, mixing state, particle size, and optical characteristics are highly variable, resulting in large challenges in understanding how they impact human health and climate. To address these issues, it is essential to integrate field, laboratory, and modeling studies to provide us with a better understanding of aerosol characteristics and global impact.

The aim of this Special Issue is to provide recent advances in the field of broadly understood aerosol characteristics and their impacts. The Special Issue is highly relevant to laboratory experiments, field observations, remote sensing, and model simulations regarding aerosol studies that include but are not limited to the following topics:

  • Arrosol source attribution, secondary formation;
  • Characterization of aerosol chemical, physical, and optical properties;
  • The role of aerosols in air pollution, and interaction with meteorological conditions;
  • Aerosol–cloud–radiation interaction studies;
  • Assimilation and simulation of aerosols.

Dr. Haochi Che
Dr. Lu Zhang
Dr. Caroline Dang
Dr. Zengliang Zang
Guest Editors

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Keywords

  • aerosols
  • air pollution
  • in-situ observations
  • remote sensing
  • modeling simulations
  • aerosol-radiation interactions
  • aerosol-cloud interactions

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Published Papers (1 paper)

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Research

13 pages, 7181 KiB  
Article
Physicochemical Characterization of Aerosols in the Coastal Zone: Evidence of Persistent Carbon Soot in the Marine Atmospheric Boundary Layer (MABL) Background
by Philippe Parent, Carine Laffon, Victor Trillaud, Olivier Grauby, Daniel Ferry, Alix Limoges, Tathy Missamou and Jacques Piazzola
Atmosphere 2023, 14(2), 291; https://doi.org/10.3390/atmos14020291 - 1 Feb 2023
Cited by 4 | Viewed by 1898
Abstract
Aerosol particles in coastal areas result from a complex mixing between sea-spray aerosols locally generated at the sea surface by breaking waves and a continental component issued from natural and/or anthropogenic sources. The aim of this paper is to study how the aerosols [...] Read more.
Aerosol particles in coastal areas result from a complex mixing between sea-spray aerosols locally generated at the sea surface by breaking waves and a continental component issued from natural and/or anthropogenic sources. The aim of this paper is to study how the aerosols mix in the coastal marine atmosphere to evaluate the impact of the background pollution on the atmospheric aerosols. To this end, we have carried out a qualitative analysis of particulate matter sampled at two French coastal areas using a non-destructive methodology combining scanning electron microscopy (SEM)/X-ray fluorescence, transmission electron microscopy (TEM), X-ray diffraction, and Raman spectroscopy. Our analysis shows a dominant contribution of anthropogenic aerosols through strong levels of submicronic carbon soot and sulfate particles, even observed when the aerosol is sampled during pure maritime-air mass episodes. Our results also evidence the non-mixing between sea-spray, mainly composed of coarse aerosol particles, and this anthropogenic particulate matter of smaller sizes. Full article
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