武汉地区黑碳气溶胶气流输送轨迹的垂向变化分析  

Vertical variation analysis of black carbon aerosol transport trajectory over Wuhan

作　　者：孙莹莹 赵锦慧[1] 蒋涛涛 邓田田 黄智怡 唐瑞 SUN Yingying;ZHAO Jinhui;JIANG Taotao;DENG Tiantian;HUANG Zhiyi;TANG Rui(Faculty of Resources and Environmental Science,Hubei University,Wuhan 430062,China)

机构地区：[1]湖北大学资源环境学院,湖北武汉430062

出　　处：《湖北大学学报（自然科学版）》2023年第2期212-218,共7页Journal of Hubei University：Natural Science

基　　金：国家级大学生创新创业训练计划项目(201910512028);校级大学生创新创业训练计划项目(X202010512077)资助。

摘　　要：运用HYSPLIT多受点前向轨迹模型、潜在源贡献因子分析、WRF-CMAQ模式等方法,基于2015年6月至2016年5月的黑碳实测数据,对不同气团背景下武汉地区16个垂直高度层积聚黑碳气溶胶浓度的潜在源区进行定性分析.研究结果表明:武汉地区黑碳气溶胶的质量浓度表现为冬季高、夏季低,秋、春季节波动较为剧烈;在垂直方向16个高度层上,河南、安徽、江西、湖南是武汉黑碳质量浓度较高值分布最集中的地方,各个不同的高度层范围内都存在影响武汉黑碳质量浓度的潜在源区;需要注意的是,在距地面高度300、900、2000、5600、7600 m上,黑碳质量浓度值主要分布在低值水平范围内,并且在空间分布上比较分散;说明在这几个高度层上,武汉地区污染物的潜在源区不明显,各源区对污染物的贡献率较低.HYSPLIT multi-affected point forward trajectory model,potential source contribution factor analysis and WRF-CMAQ model were used,based on the measured data of black carbon from June 2015 to May 2016,the potential sources of black carbon aerosol concentration at 16 vertical altitudes in Wuhan under different air mass background were analyzed qualitatively.The results showed that the mass concentration of black carbon aerosol in Wuhan was high in winter and low in summer,and fluctuated sharply in autumn and spring.At 16 levels in the vertical direction,Henan,Anhui,Jiangxi and Hunan had the most concentrated distribution of high mass concentration of black carbon in Wuhan,and they were the main potential sources of black carbon in Wuhan.It should be noted that the height from the ground was 300,900,2000,5600,7600 meters,the mass concentration of black carbon was mainly distributed in the lower level range,and the spatial distribution was relatively scattered.It indicated that the potential source areas of pollutants in Wuhan were not obvious at these altitudes,and the contribution rate of each source area to pollutants was low.

关 键 词：武汉地区 轨迹聚类 黑碳气溶胶 垂向气流轨迹 WRF-CMAQ模式 

分 类 号：X703.1[环境科学与工程—环境工程]