| 一种基于激光雷达和卫星资料估算地面颗粒物浓度的方法 |
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| 引用本文： | 严国梁,韩永翔,张祥志.一种基于激光雷达和卫星资料估算地面颗粒物浓度的方法[J].科学技术与工程,2016,16(9). |
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| 作者姓名： | 严国梁 韩永翔 张祥志 |
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| 作者单位： | 海南省气象局,南京信息工程大学气象灾害预报预警与评估协同创新中心;中国气象局气溶胶与与降水重点开放实验室,江苏省环境监测中心 |
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| 摘 要： | 从2013年5月至11月中筛选激光雷达和MODIS大气光学厚度(AOD)资料,提出一种基于激光雷达反演大气气溶胶消光系数廓线,结合MODIS大气光学厚度资料,估算地面颗粒物质量浓度的方法;将该方法与AOD/大气边界层高度(ABLH)方法进行对比,最后将估算的颗粒物浓度与实测值进行比较。研究表明,该方法估算地面颗粒物浓度效果好于AOD/ABLH方法,与实测PM_(2.5)和PM_(10)浓度相关系数分别达到0.8和0.62。两种方法估算得到的地面颗粒物浓度与实测值比较,新方法估算的结果准确性更好。
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| 关 键 词： | 微脉冲激光雷达 颗粒物浓度 消光系数 大气边界层 |
| 收稿时间： | 2015/11/12 0:00:00 |
| 修稿时间： | 2015/12/17 0:00:00 |
Method to estimate concentration of surface-level particulate matter from micro pulse lidar and satellite data |
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| yan guo liang,han yong xiang and zhang xiang zhi.Method to estimate concentration of surface-level particulate matter from micro pulse lidar and satellite data[J].Science Technology and Engineering,2016,16(9). |
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| Authors: | yan guo liang han yong xiang and zhang xiang zhi |
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| Institution: | Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster,Key Laboratory for Aerosol -Cloud-Precipitation of China Meteorological Administration,Nanjing University of Information Science and Technology,Jiangsu Environmental Monitoring Center |
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| Abstract: | We filtrated the Lidar data and Atmopheric Optical Depth (AOD) of MODIS from April to November,2011,put forward a method to estimate PM-concentrations base on vertical aerosol extinction profiles by MPL and AOD from MODIS,Then used the method compare to the method by AOD/ABLH.Finally,compared the estimated PM-concentrations with measured value.The results show ,compared to the method by AOD/ABLH ,the result of estimate PM-concentrations by new method was better. Correlation coefficient between surface extinction by new method with measured PM2.5 and PM10 concentrations is 0.8 and 0.62 respectively. compared the estimated PM-concentrations by the two kind of methods with measured value, degree of accuracy of the new method is better. |
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| Keywords: | micro pulse lidar PM-concentrations extinction coefficient atmospheric boundary layer height |
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