沙漠与绿洲气象2024，Vol.18Issue(3)：150-157,8.DOI:10.12057/j.issn.1002-0799.2024.03.020
金华市不同区域负氧离子浓度特征与气象环境因素相关分析
Characteristics of Negative Air Ion Concentration in Different Regions and Correlation with Meteorological Environmental Factors of Jinhua City
摘要
Abstract
Using the negative air ion concentration(NAIC)and meteorological and environmental data of Jinhua city from 2019 to 2021,the spatial and temporal characteristics of NAIC in different regions(plain urban area,plain park,waterside scenic spot,mountain forest scenic spot)were analyzed in this paper.Besides,focusing on the urban areas with human activities,the correlation between the NAIC and meteorological environmental factors at different time scales,as well as the differences in different weather conditions were also provided.The results showed that the distribution characteristics of NAIC were low in plain areas and high in mountain areas.Dense vegetation and dynamic water flow could increase the NAIC and improve the concentration level.The NAIC was higher before sunrise and after sunrise in mountain forest scenic spots,higher in the small hours than that afternoon in waterside scenic spots,while reached its peak in the afternoon in plain areas.The diurnal variation trend of the four seasons in different regions was generally consistent,but there were differences in the peak value,daily range and peak moment of NAIC in different seasons.The seasonal difference of NAIC in different functional zones could be seen in this research,with the maximum value in the summer from June to September,especially in August in mountain forest scenic spots.The correlation between NAIC and meteorological environmental factors was quite different on different time scales.On the hourly time scale,it was significantly positively correlated with temperature,wind speed,rainfall and O3,while it was significantly negatively correlated with PM2.5;In terms of seasons,spring had the highest correlation with wind speed,temperature in summer,O3 in autumn and PM2.5 in winter;On the day scale,it had a significant positive correlation with relative humidity,wind speed and rainfall,and a significant negative correlation with PM2.5 and O3.In addition,the NAIC on rainy days was significantly higher than other weather conditions,with the difference reaching its maximum value in winter.关键词
负氧离子/时空分布/气象环境因素/金华市Key words
negative air ion/spatial and temporal distribution/meteorological environmental factors/Jinhua city分类
天文与地球科学引用本文复制引用
冯晓钰,张云惠,王智楷,楼俊伟,张鑫..金华市不同区域负氧离子浓度特征与气象环境因素相关分析[J].沙漠与绿洲气象,2024,18(3):150-157,8.基金项目
金华公共气象服务创新团队项目 （）
金华市气象局一般项目(2020-01) （2020-01）
