SSH-Aerosol v1.1: A Modular Box Model to Simulate the Evolution of Primary and Secondary Aerosols

Atmosphere

Cédric Flageul¹  Youngseob Kim¹  Karine Sartelet¹  Zhizhao Wang¹  Florian Couvidat² 

[1] CEREA, Joint laboratory École des Ponts ParisTech and EdF R&D, 77 455 Marne la Vallée, France;Institut National de l’Environnement Industriel et des Risques, INERIS, 60 550 Verneuil en Halatte, France;

关键词: secondary aerosols;    viscosity;    ultra-fine particles;    mixing state;    partitioning;   

DOI  :  10.3390/atmos11050525

来源: DOAJ

【 摘 要 】

Particles are emitted by different sources and are also formed in the atmosphere. Despite the large impact of atmospheric particles on health and climate, large uncertainties remain concerning their representation in models. To reduce these uncertainties as much as possible, a representation of the main processes involved in aerosol dynamics and chemistry is necessary. For that purpose, SSH-aerosol was developed to represent the evolution of the mass and number concentrations of primary and secondary particles, across different scales, using state-of-the-art modules, taking into account processes that are usually not considered in air-quality or climate modelling. For example, the particle mixing state and the growth of ultra-fine particles are taken into account in the aerosol dynamics, the affinity of semi-volatile organic compounds with water and viscosity are taken into account in the partitioning between the gas and particle phases of organics and the formation of extremely low-volatility organic compounds from biogenic precursors is represented. SSH-aerosol is modular and can be used with different levels of complexity. It may be used as standalone to analyse chamber measurements. It is also designed to be easily coupled to 3D models, adapting the level of complexity to the spatial scale studied.

【 授权许可】

Unknown