| 长沙市负氧离子浓度变化特征与气象因子相关初探 |
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| 引用本文： | 马晶昊,董子舟,杨云芸,朱歆炜,张永锋.长沙市负氧离子浓度变化特征与气象因子相关初探[J].安徽农业科学,2014(28):9872-9874. |
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| 作者姓名： | 马晶昊 董子舟 杨云芸 朱歆炜 张永锋 |
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| 作者单位： | 1. 湖南省气象服务中心,湖南长沙,410118
2. 湖南省气象局,湖南长沙,410118 |
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| 摘 要： | 利用2013年1 ～12月长沙市负氧离子观测资料,分析了长沙市空气负氧离子的季、月和日变化特征,以及空气负氧离子与气象因子的相关关系.结果表明,长沙市年平均负氧离子浓度为806个/cm3,其中秋季平均负氧离子浓度最大,为1 072个/cm3,春季平均负氧离子浓度最小,为551个/cm3.四季中负氧离子的日变化特征存在明显差异,冬季1月和秋季9月,负氧离子浓度日变化均基本呈现双峰分布,只是冬季1月极大值出现在04：00和15：00,而秋季9月极大值出现在05：00和17：00;春季4月,负氧离子浓度日变化基本呈现三峰分布,极大值出现在03：00、12：00和15：00;夏季7月,负氧离子浓度日变化呈现单峰型,极大值出现在06：00.负氧离子浓度与气象因子密切相关,其中与温度、湿度均呈正相关系.
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| 关 键 词： | 负氧离子 浓度变化 气象因子 相关关系 |
Variation Features of Negative Ion Concentration and Its Correlation with Meteorological Factors in Changsha |
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| Institution: | MA Jing-hao, DONG Zi-zhou, YANG Yun-yun et al (1. Meteorological Service Center in Hunan Province, Changsha, Hunan 410118 ; 2. Meteorological Bureau of Hunan, Changsha, Hunan 410118 ) |
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| Abstract: | Using observation data of negative oxygen ions in Changsha from January to December in 2013,the seasonal,monthly and daily variation characteristics of negative oxygen ions in Changesha were analyzed,as well as the correlation between air negative oxygen ion and meteorological factors.The results showed that the annual average concentration of negative oxygen ions is 806/cm3 in Changsha City,the average autumn of negative oxygen ions concentration is 1 072/cm3,the maximum,minimum the average concentration of negative oxygen ions in the spring is 551/cm3.There are obvious differences in the diurnal variation of negative oxygen ions in the four seasons,January in winter and September in autumn negative oxygen ions concentration changes are basically shows two peak distribution,just January in winter maximum value appeared 04：00 and 15：00.September in autumn maximum value appeared in 05：00 and 17：00; spring April,negative oxygen ions concentration day changes basic rendering three peak distribution,maximum value appeared in 03：00,12：00 and 15：00; summer July,negative oxygen ions concentration day changes one peak distribution,maximum value appeared in 06：00.Negative oxygen ions concentrations and meteorological factors are closely related,which was positively correlated with temperature and humidity. |
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| Keywords: | Negative oxygen ion Concentration variation Meteorological factors Correlation |
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