南京浦口区大气负离子的时空特征及其与气象条件的关系

发布时间：2018-11-27 19:38

【摘要】：利用南京市浦口区境内老山森林、农庄、珍珠泉、石桥万诚4个观测点2014年10月~2015年10月大气负(氧)离子观测资料,分析了浦口区大气负(氧)离子浓度的时空变化特征及其与气象因子的关系。结果表明:(1)浦口区日平均大气负(氧)离子浓度为688个/cm~3,最大值约在21:00,为986个/cm~3,最小值约在12:00,为610个cm~3;(2)浦口区年平均大气负(氧)离子浓度为675个/cm~3,其中夏季最高,为728个/cm~3;冬季最低,为538个/cm~3;(3)浦口区大气负(氧)离子空间分布规律为:农庄珍珠泉老山森林石桥万诚;(4)不同天气条件下大气负离子与气象因子的相关性不同,如雨日,大气负离子与降水量、气温、相对湿度显著相关(P0.01);无雨天,大气负离子与日照显著相关(P0.05)。
[Abstract]:From October 2014 to October 2015, four observation sites of Laoshan forest, farm, Zhenzhu Spring and Shiqiao Wancheng in Pukou District, Nanjing City, were used to observe the negative (oxygen) ions in the atmosphere. The temporal and spatial variation of atmospheric negative (oxygen) ion concentration in Pukou area and its relationship with meteorological factors are analyzed. The results show that: (1) the daily average atmospheric negative (oxygen) ion concentration in Pukou area is 688 / cm~3, the maximum value is about 21: 00, the minimum value is about 12: 00 and 610 cm~3; / cm~3,. (2) the annual average atmospheric negative (oxygen) ion concentration in Pukou is 675 / cm~3, the highest in summer, 728 / cm~3; in winter, and 538 / cm~3; in winter. (3) the spatial distribution of negative (oxygen) ions in the atmosphere of Pukou area is as follows: Zhuzhou-Laoshan Forest Shiqiao Wancheng; (4) the correlation between atmospheric negative ions and meteorological factors is different under different weather conditions, such as rain day, atmospheric negative ion and precipitation, air temperature, relative humidity (P0.01); There was a significant correlation between atmospheric negative ions and sunshine on rainy days (P0.05).
【作者单位】：南京信息工程大学环境科学与工程学院;南京信息工程大学江苏省大气环境与装备技术协同创新中心;南京市浦口区气象局;
【基金】：中国清洁发展机制基金赠款项目(2013013) 国家科技支撑计划(2012BAD16B0305;2012BAC23B01)~~
【分类号】：X16

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