NAQPMS+APM模式对北京冬季细粒子谱分布演变特征的数值模拟

doi:10.3878/j.issn.1006-9585.2015.15095

CORC > 北京大学 > 环境科学与工程学院

	NAQPMS+APM模式对北京冬季细粒子谱分布演变特征的数值模拟; Simulation of Particle Number Size Distribution in Beijing in Winter Using NAQPMS+APM Model
	陈学舜 ; 王自发 ; 李杰 ; 余方群 ; 胡敏
刊名	气候与环境研究
	2015
关键词	NAQPMS+APM模式粒子谱分布一次粒子二次粒子 NAQPMS+APM model Particle number size distribution Primary particle Secondary particle
DOI	10.3878/j.issn.1006-9585.2015.15095
英文摘要	利用包含详细微物理动力学机制的NAQPMS+APM (Nested Air Quality Prediction Modeling System with Advanced Particle Microphysics)模式，对北京城市大气2006年1月15日至2月13日期间的粒子数浓度谱分布进行了模拟，模式模拟结果合理，能够很好地再现北京城市大气细粒子的数浓度谱分布演变特征。分析表明，北京冬季大气新粒子形成事件频发，核化作用使核模态粒子数浓度急剧升高；污染累积时，积聚模态粒子数浓度显著增大，而核模态粒子数浓度很小，粒子谱分布向大粒子端移动；重污染期间，粒子微物理混合作用强烈，二次成分在一次粒子上的附着使一次粒子粒径显著增大，二次成分可使一次粒子粒径增大50%以上，积聚模态的二次粒子与一次粒子共同促进了污染的形成。在北京及其近周边区域，北京南部和河北南部一次粒子数量多，占据主导地位，而在河北北部二次粒子则占主导地位。; Particle number size distribution in Beijing was simulated during the period 15 January to 13 March 2006 using NAQPMS+APM (Nested Air Quality Prediction Modeling System with Advanced Particle Microphysics). The simulated number size distribution of fine particles agreed well with observations. The simulation results showed that new particle formation occurred frequently. The nucleation-mode particle number concentration increased drastically due to the nucleation process during new particle formation. In pollution periods, the number concentration of accumulation-mode particles increased, while the nucleation-mode particle number concentration deceased obviously. Moreover, the particle number size distribution shifted towards larger diameters. In heavy pollution episodes, the particle size increased significantly due to intense mixing through microphysical processes. The sizes of primary particles could be 50%larger than their core size due to secondary species coating on them. Accumulation-mode secondary and primary particles together contributed to pollution formation. For Beijing and surrounding areas, the simulation results showed that primary particles dominated particle numbers in the south of Beijing and Hebei, while secondary particles were dominant in the northern part of Hebei.; 中国科学院战略性先导科技专项XDB05030201，国家自然科学基金41225019; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 6; 611-619; 20
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/432385]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	陈学舜,王自发,李杰,等. NAQPMS+APM模式对北京冬季细粒子谱分布演变特征的数值模拟, Simulation of Particle Number Size Distribution in Beijing in Winter Using NAQPMS+APM Model[J]. 气候与环境研究,2015.
APA	陈学舜,王自发,李杰,余方群,&胡敏.(2015).NAQPMS+APM模式对北京冬季细粒子谱分布演变特征的数值模拟.气候与环境研究.
MLA	陈学舜,et al."NAQPMS+APM模式对北京冬季细粒子谱分布演变特征的数值模拟".气候与环境研究 (2015).