Articles | Volume 23, issue 13
https://doi.org/10.5194/acp-23-7521-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-7521-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Jul 2023
Research article |
| 11 Jul 2023
| 11 Jul 2023
The variation in the particle number size distribution during the rainfall: wet scavenging and air mass changing
Guangdong Niu
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Ximeng Qi
CORRESPONDING AUTHOR
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Collaborative Innovation Center for Climate Change, Nanjing, Jiangsu Province, China
Liangduo Chen
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Collaborative Innovation Center for Climate Change, Nanjing, Jiangsu Province, China
Shiyi Lai
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Xin Huang
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Collaborative Innovation Center for Climate Change, Nanjing, Jiangsu Province, China
Jiaping Wang
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Collaborative Innovation Center for Climate Change, Nanjing, Jiangsu Province, China
Xuguang Chi
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Collaborative Innovation Center for Climate Change, Nanjing, Jiangsu Province, China
Wei Nie
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Collaborative Innovation Center for Climate Change, Nanjing, Jiangsu Province, China
Veli-Matti Kerminen
Institute for Atmospheric and Earth Systems Research, Faculty
of Science, University of Helsinki, Helsinki, Finland
Tuukka Petäjä
Institute for Atmospheric and Earth Systems Research, Faculty
of Science, University of Helsinki, Helsinki, Finland
Markku Kulmala
Institute for Atmospheric and Earth Systems Research, Faculty
of Science, University of Helsinki, Helsinki, Finland
Aijun Ding
Joint International Research Laboratory of Atmospheric and Earth
System Sciences, School of Atmospheric Sciences, Nanjing University,
Nanjing, China
Collaborative Innovation Center for Climate Change, Nanjing, Jiangsu Province, China
Data sets
ERA5 hourly data on pressure levels from 1940 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.bd0915c6
TRMM (TMPA) Rainfall Estimate L3 3 hour 0.25 degree x 0.25 degree V7 Tropical Rainfall Measuring Mission (TRMM) https://doi.org/10.5067/TRMM/TMPA/3H/7
Short summary
The reported below-cloud wet-scavenging coefficients (BWSCs) are much higher than theoretical data, but the reason remains unclear. Based on long-term observation, we find that air mass changing during rainfall events causes the overestimation of BWSCs. Thus, the discrepancy in BWSCs between observation and theory is not as large as currently believed. To obtain reasonable BWSCs and parameterizations from field observations, the effect of air mass changes needs to be considered.
The reported below-cloud wet-scavenging coefficients (BWSCs) are much higher than theoretical...
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