Comprehensive modelling study on observed new particle formation at the SORPES station in Nanjing, China
Item
Title (Dublin Core)
Comprehensive modelling study on observed new particle formation at the SORPES station in Nanjing, China
Description (Dublin Core)
New particle formation (NPF) has been investigated intensively during the last 2 decades because of its influence on aerosol population and the possible contribution to cloud condensation nuclei. However, intensive measurements and modelling activities on this topic in urban metropolitan areas in China with frequent high-pollution episodes are still very limited. This study provides results from a comprehensive modelling study on the occurrence of NPF events in the western part of the Yangtze River Delta (YRD) region, China. The comprehensive modelling system, which combines the WRF-Chem (the Weather Research and Forecasting model coupled with Chemistry) regional chemical transport model and the MALTE-BOX sectional box model (the model to predict new aerosol formation in the lower troposphere), was shown to be capable of simulating atmospheric nucleation and subsequent growth. Here we present a detailed discussion of three typical NPF days, during which the measured air masses were notably influenced by either anthropogenic activities, biogenic emissions, or mixed ocean and continental sources. Overall, simulated NPF events were generally in good agreement with the corresponding measurements, enabling us to get further insights into NPF processes in the YRD region. Based on the simulations, we conclude that biogenic organic compounds, particularly monoterpenes, play an essential role in the initial condensational growth of newly formed clusters through their low-volatility oxidation products. Although some uncertainties remain in this modelling system, this method provides a possibility to better understand particle formation and growth processes.
Creator (Dublin Core)
Huang, Xin
Zhou, Luxi
Ding, Aijun
Qi, Ximeng
Nie, Wei
Wang, Minghuai
Chi, Xuguang
Petäjä, Tuukka
Kerminen, Veli-Matti
Roldin, Pontus
Rusanen, Anton
Kulmala, Markku
Boy, Michael
Date (Dublin Core)
2018-09-09
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-16-2477-2016
https://acp.copernicus.org/articles/16/2477/2016/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
