山东师范大学学报(自然科学版)

2019, v.34;No.148(04) 443-449

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基于车载颗粒物激光雷达的合肥市典型污染过程立体监测
STEREO MONITORING OF TYPICAL POLLUTION PROCESS IN HEFEI CITY BASED ON VEHICLE-BORNE PARTICULATE MATTER LIDAR

王旭;赵曰峰;高静;
Wang Xu;Zhao Yuefeng;Gao Jing;School of Physics and Electronics,Shandong Normal University;

摘要(Abstract):

2018年2月7日至11日,受不利气象条件影响,合肥市及周边地区出现了一次大气污染过程,市辖区均出现不同程度污染.选取4个固定观测点进行全天候环境组网监测,同时安排1辆"大气环境污染移动监测车"进行全天候走航观测,实时监测合肥市区污染物空间分布、立体空间传输及空间沉降与扩散状态.本次合肥市环境组网监测使用了RaySound系列便携式高能高频激光雷达,采用了固定垂直监测、平面扫描监测和移动走航监测"地空天三位一体"的模式,获得了垂直空间边界层特征,污染物容量和污染物输入等特征,分析了城区空间颗粒分布情况,得出了精准污染来源和走势,验证了激光雷达监测污染源排放的可行性以及准确性.
Due to unfavorable meteorological conditions, a process of air pollution occurred in Hefei and its surrounding areas,from February 7 to 11, 2018,and there were varying degrees of pollution in the municipal districts. In response to this pollution process, under the leadership of Hefei environmental protection bureau and with the support of Hefei environmental protection sub-bureau, four fixed observation sites were selected to carry out all-weather environmental monitoring projects in Hefei municipal jurisdiction area. At the same time, a "mobile monitoring vehicle of atmospheric environmental pollution" was arranged to conduct all-weather mobile monitoring,and to real-time monitor the spatial distribution of pollutant,stereoscopic spatial exchange and particulate deposition and diffusion in Hefei urban area. The RaySound series portable high-energy and high-frequency lidar was used in the environmental networking monitoring. By using the mode of fixed vertical monitoring,plane scanning monitoring and mobile walking monitoring,the air quality in the observation area was evaluated comprehensively,and the characteristics of vertical spatial boundary layer,pollutant capacity and pollutant input were obtained. The spatial particle distribution in urban area was analyzed, and the precise pollution sources and trends were obtained. The feasibility and accuracy of lidar monitoring pollution source emissions were verified.

关键词(KeyWords): 大气污染;移动监测;污染物;激光雷达
air pollution;mobile monitoring;pollutants;lidar

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作者(Author): 王旭;赵曰峰;高静;
Wang Xu;Zhao Yuefeng;Gao Jing;School of Physics and Electronics,Shandong Normal University;

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