| 京津冀一次空气重污染过程激光雷达走航观测分析 |
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| 引用本文： | 王威,杨楠,师耀龙,张震,程麟钧,柴文轩,楚宝临,付强,李健军.京津冀一次空气重污染过程激光雷达走航观测分析[J].中国环境监测,2017,33(1):7-13. |
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| 作者姓名： | 王威 杨楠 师耀龙 张震 程麟钧 柴文轩 楚宝临 付强 李健军 |
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| 作者单位： | 中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012,中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012 |
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| 基金项目： | 2014年国家科技支撑计划“基于物联网的区域空气质量预警及决策支撑技术及应用”（201409009） |
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| 摘 要： | 针对2016年国庆期间一次污染消散过程,开展了激光雷达定点与走航观测,并综合运用中国环境监测总站国家预报平台数值模型预报结果和国控站点PM_(2.5)监测数据,对污染团的移动和分布进行了分析。结果表明,雷达定点观测的消光系数突变,主要由北京西部累积污染团在夜间弱西北气流作用下的回流所引起。受此西北气流影响移出北京的污染气团在天津至沧州一带滞留。北京至保定沿线颗粒物污染消散现象,被雷达走航观测所捕捉。
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| 关 键 词： | 京津冀 激光雷达 消光系数 PM2.5 |
| 收稿时间： | 2016/10/24 0:00:00 |
| 修稿时间： | 2016/11/5 0:00:00 |
Application of Mobile Lidar in Analyzing Regional Pollutants Transportation During a Haze Episode over Beijing-Tianjin-Hebei Area |
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| WANG Wei,YANG Nan,SHI Yaolong,ZHANG Zhen,CHENG Linjun,CHAI Wenxuan,CHU Baolin,FU Qiang and LI Jianjun.Application of Mobile Lidar in Analyzing Regional Pollutants Transportation During a Haze Episode over Beijing-Tianjin-Hebei Area[J].Environmental Monitoring in China,2017,33(1):7-13. |
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| Authors: | WANG Wei YANG Nan SHI Yaolong ZHANG Zhen CHENG Linjun CHAI Wenxuan CHU Baolin FU Qiang and LI Jianjun |
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| Institution: | State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China,State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China and State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China |
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| Abstract: | Mobile lidar was used to investigate the distribution of PM2.5 and its regional transportation during a particulate matter pollution casehappened on 2nd and 3rd October 2016. Data from numerical model and ground-based observations were also used. Results show that the variety in the extinction coefficient was caused by the backflow of accumulated polluted masses, which was driven by northwest wind during the night in the western Beijing. The transportation and dispersion process were then captured by mobile lidar. By doing the comprehensive analysis using the data from the lidar, numerical model and ground-based observations, the accumulation and transportation of polluted mass under specific terrain and different atmospheric circulation was investigated in depth. |
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| Keywords: | Beijing-Tianjin-Hebei area lidar extinction coefficient PM2 5 |
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