【作者】 吕萍； 黄建平； 董治宝；

【Author】 Lu Ping①②,Huang Jian-ping①,Dong Zhi-bao② ①College of Atmospheric Sciences, Lanzhou University ②Key Laboratory of Desert and Desertification, Chinese Academy of Sciences, Lanzhou, Gansu 730000, PR China

【机构】 兰州大学大气科学学院； 中国科学院沙漠与沙漠化重点实验室；

【摘要】 黑碳气溶胶和有机碳气溶胶是大气气溶胶的重要组成成分,对区域和全球气候有重大影响,是近几年研究热点。本文利用区域气候模式RegCM3模拟了2000年夏季7月份中国黑碳气溶胶和有机碳气溶胶的辐射强迫,分析了这两种气溶胶气溶胶对大气温度的影响。结果发现:黑碳气溶胶在模式顶产生正的辐射强迫,而有机碳气溶胶在模式顶层产生的辐射强迫并非全为正值,在地表两种气溶胶都产生负的辐射强迫;黑碳气溶胶和有机碳气溶胶的辐射强迫引起的温度反馈表现在:7月份这两种气溶胶的加入使得28°N到30°N之间的地区的气温显著升高,35°N到36.2°N区域气温降低。黑碳气溶胶的升温效应在研究区域强于有机碳气溶胶。更多还原

【Abstract】 The research of black carbon and organic carbon aerosols become a focus point as they playing an important role in the changing of regional and global climate and main components of atmospheric aerosols. The Regional Climate Model version 3 (RegCM3) is used to investigate the radiative forcing of black carbon (BC) and organic carbon (OC) aerosols on regional climate in China, the influences of BC and OC aerosols on the air temperature are analyzed. The simulation result shows that BC aerosol produces a positive radiative forcing at the atmosphere top, and a negative forcing at the surface in the region for both aerosols; Adding of BC and OC aerosols causes distinct increase in air temperature between 28°N and 30°N ranges, and decrease in the area of 35°N and 36.2°N. The calefactive effect of BC is stronger than OC.更多还原