南京大学学报（自然科学版）Issue(6)：800-809,10.DOI:10.13232/j.cnki.jnju.2014.06.008
长三角城市群区大气污染对气象要素及地表能量平衡的影响研究
A study of the impacts of aerosols on micrometeorological characteristics and energy budget in the western Yangtze River Delta
摘要
Abstract
Aerosols contribute substantially to radiative forcing,which inevitably influences the land surface process and then exerts a perturbation on climate.The interaction of meteorological characteristics,energy budget and aerosols over Yangtze River Delta has been investigated,by analyzing the concentration of fine particles collected from the Xianlin ‘flagship’central site of the Stations for Observing Regional Processes of the Earth System (SORPES)and meteorological parameters,radiation fluxes obtained from the Lishui subsidiary site of SORPES from April to June 2012.The results indicate that air pollution in this area is associated with southerly wind characterized by low speed.Heavy load of aerosols resulted in a decrease in the solar radiation by 64.8 W·m-2 and a decrease in the net radiation by 46.3 W·m-2 in the daytime.Weakened latent fluxes and sensible fluxes are observed combined with a changed Bowen ratio.It is speculated that aerosols reduce the net radiation and cause a decrease in air temperature near surface,which depresses the land surface turbulent fluxes and leads to an increase in aerosol con-centration in turn.关键词
城市群区/气溶胶/气象要素/地表能量收支Key words
city cluster yangtze river delta/aerosol/micrometeorological/energy budget引用本文复制引用
刘丽霞,凌肖露,郭维栋..长三角城市群区大气污染对气象要素及地表能量平衡的影响研究[J].南京大学学报（自然科学版）,2014,(6):800-809,10.基金项目
973项目(2010CB428503),教育部“新世纪优秀人才支持计划”,江苏省博士生创新项目以及国家人才培养基金(J1103410) （2010CB428503）
