WANG Chao1 ， XIAO Tiangui1 ， LUO Qin2 ， WU Libin2 ， LIU Yajing1 ， WEN Xiaohang1
（1. College of Atmospheric Sciences， Plateau Atmosphere and Environment Key Laboratory of Sichuan Province， Chengdu University of Information Technology， Chengdu 610225， China 2. Wenjiang Meteorological Bureau， Chengdu 610000， China）
Abstract：With the hourly data of land surface temperature (Ts) , air temperature (Ta) and aerosol mass concentration, the characteristics of the difference between surface temperature and air temperature (Ts-Ta) and its impacts on aerosol concentration were studied. The results show that the average air temprature is 2.01℃ and the distribution of average air temperature is 0.3~1.2℃. The maximum value of (Ts-Ta) appeares in April while the minimum in November. The annual change variations are fitted well by cubic curve fitting equation. Diurnal variation of (Ts-Ta) is significant. Although the variations in four seasons have similarly changing tendency, the extremum values are different. The aerosol pollution in Chengdu is serious. The effects of (Ts-Ta) on aerosol concentration is significant, the greater the (Ts-Ta) , aerosol concentration is low, otherwise, the reverse.
Keywords： basin city; differences between ground and air temperatures; aerosol
文章编号：1008-5548（2018）03-0076-06
DOI：10.13732/j.issn.1008-5548.2018.03.014
收稿日期：2017-12-26， 修回日期：2018-03-14，在线出版时间：2018-05-08。
基金项目：国家自然科学基金项目，编号：91337215；国家科技支撑计划项目：编号 2015BAC03B05；四川省教育厅项目：编号 2018SZ0287；成都信息工程大学科研基金项目：编号：CRF201606；成都市温江区科技局项目，编号：WJKJXM。
第一作者简介：王超（1986—），男，博士，讲师，研究方向为陆面过程、污染气象、数值模拟等 。E-mail：tony45@foxmail.com。
通信作者简介：肖天贵（1962—），男，博士，教授，研究方向为气候统计、数值模拟、城市大气污染等。E-mail：xiaotiangui@cuit.edu.cn。
