Results 41 to 50 of about 315,278 (352)

Global–regional nested simulation of particle number concentration by combing microphysical processes with an evolving organic aerosol module [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
Aerosol microphysical processes are essential for the next generation of global and regional climate and air quality models to determine particle size distribution.
X. Chen   +25 more
doaj   +1 more source

Measurement report: Impact of cloud processes on secondary organic aerosols at a forested mountain site in southeastern China [PDF]

open access: yesAtmospheric Chemistry and Physics
Aerosol particles play critical roles in climate and human health. However, aerosol composition and evolution, particularly secondary organic aerosol (SOA), and aerosol interactions with clouds in high-altitude background areas in China remain less ...
Z. Zhang   +22 more
doaj   +1 more source

Interaction Between Planetary Boundary Layer and PM2.5 Pollution in Megacities in China: a Review

open access: yesCurrent Pollution Reports, 2019
During the past decades, the number and size of megacities have been growing dramatically in China. Most of Chinese megacities are suffering from heavy PM2.5 pollution.
Y. Miao   +7 more
semanticscholar   +1 more source

Relationships between the planetary boundary layer height and surface pollutants derived from lidar observations over China: regional pattern and influencing factors

open access: yesAtmospheric Chemistry and Physics, 2018
. The frequent occurrence of severe air pollution episodes in China has been a great concern and thus the focus of intensive studies. Planetary boundary layer height (PBLH) is a key factor in the vertical mixing and dilution of near-surface pollutants ...
T. Su, Zhanqing Li, R. Kahn
semanticscholar   +1 more source

Simulated phase state and viscosity of secondary organic aerosols over China [PDF]

open access: yesAtmospheric Chemistry and Physics
Secondary organic aerosols (SOAs) can exist in liquid, semi-solid, or amorphous solid states. Chemical transport models (CTMs), however, usually assume that SOA particles are homogeneous and well-mixed liquids, with rapid establishment of gas–particle ...
Z. Zhang   +19 more
doaj   +1 more source

Estimation of particulate organic nitrates from thermodenuder–aerosol mass spectrometer measurements in the North China Plain [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
Particulate organic nitrates (pON) are an important component of secondary organic aerosol in biogenic-emission-dominant environments and play a critical role in NOx cycles.
W. Xu   +17 more
doaj   +1 more source

Investigating the importance of sub-grid particle formation in point source plumes over eastern China using IAP-AACM v1.0 with a sub-grid parameterization [PDF]

open access: yesGeoscientific Model Development, 2021
The influence of sub-grid particle formation (SGPF) in point source plumes on aerosol particles over eastern China was firstly illustrated by implementing an SGPF scheme into a global–regional nested chemical transport model with an aerosol microphysics ...
Y. Wei   +18 more
doaj   +1 more source

Efficient Vertical Transport of Black Carbon in the Planetary Boundary Layer

open access: yesGeophysical Research Letters, 2020
Vertical distribution of black carbon (BC) determines the layer where its heating impacts exert. This study presents continuous and simultaneous measurements at surface and on a mountain site above the wintertime planetary boundary layer influenced by ...
Dantong Liu   +17 more
semanticscholar   +1 more source

Determination of Planetary Boundary Layer height with Lidar Signals Using Maximum Limited Height Initialization and Range Restriction (MLHI-RR)

open access: yesRemote Sensing, 2020
The planetary boundary layer height (PBLH) is a vital parameter to characterize the surface convection, which determines the diffusion of air pollutants.
T. Zhong   +5 more
semanticscholar   +1 more source

Multi-method determination of the below-cloud wet scavenging coefficients of aerosols in Beijing, China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
Wet scavenging is one of the most efficient processes for removing aerosols from the atmosphere. This process is not well constrained in chemical transport models (CTMs) due to a paucity of localized parameterization regarding the below-cloud wet ...
D. Xu   +14 more
doaj   +1 more source

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