【作者】 李伟； 王柏林； 李书严；

【Author】 Li Wei[1] Li Shuyan[2] Wang Bolin[1] (1. Atmospheric Observation Technology Centre of CMA, Beijing 100081) (2.Beijing Meteorological Bureau, Beijing 100089)

【机构】 中国气象局大气探测技术中心； 北京市气象局；

【摘要】 空气中负离子浓度是空气质量好坏的标志之一。本文利用大气负离子自动测报仪春夏秋冬四个季节的观测数据,分别取4月代表春季,8月代表夏季,11月代表秋季,1月代表冬季,分析了空气负离子浓度的时间变化规律,以空气负离子与湿度、温度、两分钟风速之间的相关性。分析结果表明:大气负离子浓度具有明显的日变化规律;空气负离子浓度在春季、夏季、冬季与空气湿度呈正相关,秋季则呈负相关;与空气温度呈负相关,与两分钟风速呈负相关。更多还原

【Abstract】 The concentration of air negative ions can indicate air quality. The observation data of air negative ions in four seasons are utilized in order to analyze its temporal change trend, correlation between air negative ions and humidity, temperature, mean wind speed of two minute. We use April to represent spring, August to summer, November to fall, January to winter. The results show that the concentration of air negative ions has obvious daily change trend, positive correlation with humidity in spring, summer and winter, negative correlation with humidity in fall, negative correlation with temperature and mean wind speed of two minute.更多还原