一次对流过程对气溶胶清除和再生过程的影响

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Abstract A squall line occurred during April 23~24, 2007 over Guangdong province, China has been simulated by using the Weather Research and Forecasting (WRF) model in order to investigate the impaction scavenging of aerosol particles by hydrometeors, aerosol regeneration due to complete evaporation of liquid drops, and effects of dynamical transport on the number concentration of aerosols. The results showed that there was a negative correlation between the precipitation and aerosol concentration near surface. By comparing the impaction scavenging rates by different types of hydrometeors and nucleation scavenging rates, it showed that droplet nucleation contributed most to the aerosol scavenging, followed by the impaction scavenging by rain drops at the lower troposphere and snow at the upper troposphere. Droplet nucleation scavenging and ice crystal nucleation scavenging were the dominant scavenging processes for hygroscopic and non-hygroscopic particles respectively. The variation of aerosol number concentration was the result of combined effects of cloud dynamical transport, wet scavenging and regeneration process due to the evaporation of liquid drops. The regeneration process mainly occurred from the surface to the 10km altitude. During the development of convection, the aerosol concentration near surface was significantly reduced whereas the heavy pollution area appeared around the non-precipitation area near the gust front due to the dynamical transport. At the upper troposphere, the number concentration of hygroscopic particles was reduced while that of non-hygroscopic particles was increased.

Key words： weather research and forecasting (WRF) model aerosol number concentration wet scavenging dynamical transport

Received: 08 July 2021

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X513

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	Articles by authors
	WEI Shao-han
	HU Rong
	LI Gu-dong-ze
	TANG Xian-bing
	XU Wen-hui
	CHEN Qian

Cite this article:

WEI Shao-han,HU Rong,LI Gu-dong-ze等. The impacts of convection on aerosols scavenging and regeneration processes[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(2): 539-549.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I2/539

[1]	江琪,孙业乐,王自发,等.应用颗粒物化学组分监测仪(ACSM)实时在线测定致霾细粒子无机和有机组分[J]. 科学通报, 2013, 58(36):3818-3828. Jiang Q, Sun Y L, Wang Z F, et al. Real-time online measurements of the inorganic and organic composition of haze fine particles with an Aerosol Chemical Speciation Monitor (ACSM)[J]. Chinese Science Bulletin, 2013,58(36):3818-3828.
[2]	Sun Z Q, Mu Y J, Liu Y J, et al. A comparison study on airborne particles during haze days and non-haze days in Beijing[J]. Science of the Total Environment, 2013,456-457:1-8.
[3]	Delfino R J, Sioutas C, Malik S. Potential role of ultrafine particles in associations between airborne particle mass and cardiovascular health[J]. Environmental Health Perspectives, 2005,113(8):934-946.
[4]	花艳,潘良宝,汤莉莉,等.南京霾天颗粒物数浓度特征及其受气象条件影响分析[J]. 气象科学, 2017,37(3):385-393. Hua Y, Pan L B, Tang L L, et al. Characteristics of the particulate number concentration and association with meteorological conditions during winter haze episode in Nanjing[J]. Journal of the Meteorological Sciences, 2017,37(3):385-393.
[5]	张瑜,银燕,石立新,等.河北地区秋季气溶胶飞机探测资料分析[J]. 气象科学, 2011,31(6):755-762. Zhang Y, Yin Y, Shi L X, et al. An observational study of the aerosol distributions over Hebei area during autumn[J]. Journal of the Meteorological Sciences, 2017,37(3):385-393.
[6]	郝囝,陈景华,濮梅娟,等.华东地区夏季云微物理结构的飞机观测分析[J]. 气象科学, 2019,39(4):524-531. Hao J, Chen J H, Pu M J, et al. Aircraft measurements of microphysical properties of clouds over eastern China in summer[J]. Journal of the Meteorological Sciences, 2019,39(4):524-531.
[7]	Yang Q, Easter R C, Campuzano-Jost P, et al. Aerosol transport and wet scavenging in deep convective clouds:A case study and model evaluation using a multiple passive tracer analysis approach[J]. Journal of Geophysical Research:Atmospheres, 2015,120(16):8448-8468.
[8]	Wang X, Zhang L, Moran M D. Uncertainty assessment of current size-resolved parameterizations for below-cloud particle scavenging by rain[J]. Atmospheric Chemistry and Physics, 2010,10(12):5685-5705.
[9]	史湘军,朱寿鹏,智协飞,等.三套冰晶核化参数化方案的对比分析[J]. 大气科学学报, 2017,40(2):181-192. Shi X J, Zhu S P, Zhi X F, et al. Sensitivity study on three ice nucleation parameterizations[J]. Transactions of Atmospheric Sciences, 2017,40(2):181-192.
[10]	秦瑜,赵春生.大气化学基础[M]. 北京:气象出版社, 2003:181-182. Qin Y, Zhao C S. Fundamentals of atmospheric chemistry[M]. Beijing:China Meteorological Press, 2003:181-182.
[11]	银燕,曹海宁,况祥,等.一次深对流过程对不同溶解度大气化学气体成分垂直再分布作用的模拟[J]. 大气科学学报, 2020,43(3):425-434. Yin Y, Cao H N, Kuang X, et al. Simulations of vertical redistribution of atmospheric chemical gases with different solubility in a deep convection process[J]. Transactions of Atmospheric Sciences, 2020, 43(3):425-434.
[12]	周彬,刘端阳,魏建苏,等.降水对气溶胶颗粒物清除作用的初步分析[J]. 长江流域资源与环境, 2015,24(S1):160-170. Zhou B, Liu D Y, Wei J S, et al. A preliminary analysis on scavenging effect of precipitation on aerosol particles[J]. Resources and Environment in the Yangtze Basin, 2015,24(S1):160-170.
[13]	董群,赵普生,陈一娜.降雨对不同粒径气溶胶粒子碰撞清除能力[J]. 环境科学, 2016,37(10):3686-3692. Dong Q, Zhao P S, Chen Y N. Impact of collision removal of rainfall on aerosol particles of different sizes[J]. Environmental Science, 2016,37(10):3686-3692.
[14]	Chate D M, Rao, P S P, Naik M S, et al. Scavenging of aerosols and their chemical species by rain[J]. Atmospheric Environment, 2003,37(18):2477-2484.
[15]	康汉青,朱彬,樊曙先.南京北郊冬季大气气溶胶及其湿清除特征研究[J]. 气候与环境研究, 2009,14(5):523-530. Kang H Q, Zhu B, Fan S X. Size distributions and wet scavenging properties of winter aerosol particles in north suburb of Nanjing[J]. Climatic and Environmental Research, 2009,14(5):523-530.
[16]	吴进,孙兆彬,翟亮,等.北京地区不同类型降水对气溶胶粒子的影响[J]. 中国环境科学, 2018,38(3):812-821. Wu J, Sun Z B, Zhai L, et al. Effects of different types of precipitation on aerosol particles in Beijing[J]. China Environmental Science, 2018,38(3):812-821.
[17]	Reid J S, Lagrosas N D, Jonsson H H, et al. Observations of the temporal variability in aerosol properties and their relationships to meteorology in the summer monsoonal South China Sea/East Sea:the scale-dependent role of monsoonal flows, the Madden-Julian Oscillation, tropical cyclones, squall lines and cold pools[J]. Atmospheric Chemistry and Physics, 2015,15(4):1745-1768.
[18]	董昊,徐海明,罗亚丽.云凝结核浓度对WRF模式模拟飑线降水的影响:不同云微物理参数化方案的对比研究[J]. 大气科学, 2012, 36(1):145-169. Dong H, Xu H M, Luo Y L. Effects of cloud condensation nuclei concentration on precipitation in convection permitting simulations of a squall line using WRF model:Sensitivity to cloud microphysical schemes[J]. Chinese Journal of Atmospheric Science, 2012,36(1):145-169.
[19]	吴多常,孟智勇.2007年4月23日广东飑线的移动和地面中尺度结构特征分析[J]. 北京大学学报(自然科学版), 2013,49(3):463-470. Wu D C, Meng Z Y. On the motion and mesoscale surface structure of a squall line on april 23, 2007 in guangdong[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2013,49(3):463-470.
[20]	刘小红,任传森,王明康.云下雨滴蒸发产生硫酸盐气溶胶速率的研究[J]. 大气科学, 1994,18(3):348-357. Liu X H, Ren C S, Wang M K. A study of the production rate of sulfate aerosol resulting from the evaporation of raindrops falling below the cloudbase[J]. Chinese Journal of Atmospheric Sciences, 1994,18(3):348-357.
[21]	Yin Y, Carslaw K S, Feingold G. Vertical transport and processing of aerosols in a mixed-phase convective cloud and the feedback on cloud development[J]. Quarterly Journal of the Royal Meteorological Society, 2005,131(605):221-245.
[22]	Skamarock W C, Klemp J B, Dudhia J, et al. A description of the advanced research WRF version 3[Z]. NCAR Technical Note NCAR/TN-475+STR. Boulder, CO:NCAR, 2008.
[23]	王晓君,马浩.新一代中尺度预报模式(WRF)国内应用进展[J]. 地球科学进展, 2011,26(11):1191-1199. Wang X J, Ma H. Progress of application of the Weather Research and Forecast (WRF) model in China[J]. Advances in Earth Science, 2011, 26(11):1191-1199.
[24]	Thompson G, Eidhammer T. A study of aerosol impacts on clouds and precipitation development in a large winter cyclone[J]. Journal of the Atmospheric Sciences, 2014,71(10):3636-3658.
[25]	Koop T, Luo B P, Tsias A, et al. Water activity as the determinant for homogeneous ice nucleation in aqueous solutions[J]. Nature, 2000,406(6796):611-614.
[26]	DeMott P J, Sassen K, Poellot M R, et al. African dust aerosols as atmospheric ice nuclei[J]. Geophysical Research Letters, 2003,30(14):1732.
[27]	Phillips V T J, DeMott P J, Andronache C. An empirical parameterization of heterogeneous ice nucleation for multiple chemical species of aerosol[J]. Journal of the Atmospheric Sciences, 2008,65(9):2757-2783.
[28]	Wang X, Zhang L, Moran M D. Uncertainty assessment of current size-resolved parameterizations for below-cloud particle scavenging by rain[J]. Atmospheric Chemistry and Physics, 2010,10(200):5685-5705.
[29]	Mlawer E J, Taubman S J, Brown P D, et al. Radiative transfer for inhomogeneous atmospheres:RRTM, a validated correlated-k model for the longwave[J]. Journal of Geophysical Research:Atmospheres, 1997,102(D14):16663-16682.
[30]	Dudhia J. Numerical study of convection observed during the winter monsoon experiment using a mesoscale two-dimensional model[J]. Journal of the Atmospheric Sciences, 1989,46(20):3077-3107.
[31]	Janjic Z I. Nonsingular implementation of the Mellor-Yamada Level 2.5 scheme in the NCEP Meso model[Z]. NOAA/NWS/NCEP Office Note, 2002,437:61.
[32]	Kain J S. The Kain-Fritsch convective parameterization:An update[J]. Journal of Applied Meteorology, 2004,43(1):170-181.
[33]	Dudhia J. A multi-layer soil temperature model for MM5[C]//The 6th PSU/NCAR Mesoscale Model Users Workshop. Boulder, CO:PSU/NCAR, 1996:49-50.
[34]	Guo L C, Zhang Y H, Lin H L, et al. The washout effects of rainfall on atmospheric particulate pollution in two Chinese cities[J]. Environmental Pollution, 2016,215:195-202.
[35]	Ikeuchi H, Murakami M, Watanabe S. Scavenging of PM2.5 by precipitation and the effects of precipitation pattern changes on health risks related to PM2.5 in Tokyo, Japan[J]. Water Science and Technology, 2015,72(8):1319-1326.
[36]	Garrett T J, Avey L, Palmer P I, et al. Quantifying wet scavenging processes in aircraft observations of nitric acid and cloud condensation nuclei[J]. Journal of Geophysical Research-Atmospheres, 2006,111(D23):D23S51.