| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.5194/acp-18-10039-2018 |
| Advancing global aerosol simulations with size-segregated anthropogenic particle number emissions. | |
| Xausa F; Paasonen P; Makkonen R; Arshinov M; Ding A; Denier Van Der Gon H; Kerminen V-M; Kulmala M | |
| 发表日期 | 2018 |
| 出处 | Atmospheric Chemistry and Physics 18 (13): 10039-10054 |
| 出版年 | 2018 |
| 语种 | 英语 |
| 摘要 | Climate models are important tools that are used for generating climate change projections, in which aerosol–climate interactions are one of the main sources of uncertainties. In order to quantify aerosol–radiation and aerosol–cloud interactions, detailed input of anthropogenic aerosol number emissions is necessary. However, the anthropogenic aerosol number emissions are usually converted from the corresponding mass emissions in pre-compiled emission inventories through a very simplistic method depending uniquely on chemical composition, particle size and density, which are defined for a few, very wide main source sectors. In this work, the anthropogenic particle number emissions converted from the AeroCom mass in the ECHAM-HAM climate model were replaced with the recently formulated number emissions from the Greenhouse Gas and Air Pollution Interactions and Synergies (GAINS) model. In the GAINS model the emission number size distributions vary, for example, with respect to the fuel and technology. Special attention was paid to accumulation mode particles (particle diameter dp > 100nm) because of (i) their capability of acting as cloud condensation nuclei (CCN), thus forming cloud droplets and affecting Earth's radiation budget, and (ii) their dominant role in forming the coagulation sink and thus limiting the concentration of sub-100nm particles. In addition, the estimates of anthropogenic CCN formation, and thus the forcing from aerosol–climate interactions, are expected to be affected. Analysis of global particle number concentrations and size distributions reveals that GAINS implementation increases CCN concentration compared with AeroCom, with regional enhancement factors reaching values as high as 10. A comparison between modeled and observed concentrations shows that the increase in number concentration for accumulation mode particles agrees well with measurements, but it leads to a consistent underestimation of both nucleation mode and Aitken mode (dp < 100nm) particle number concentrations. This suggests that revisions are needed in the new particle formation and growth schemes currently applied in global modeling frameworks. |
| 主题 | Air Quality & ; Greenhouse Gases (AIR) ; Mitigation of Air Pollution (MAG) |
| URL | http://pure.iiasa.ac.at/id/eprint/15391/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/131216 |
| 推荐引用方式 GB/T 7714 | Xausa F,Paasonen P,Makkonen R,et al. Advancing global aerosol simulations with size-segregated anthropogenic particle number emissions.. 2018. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| acp-18-10039-2018.pd（8072KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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