基于激光雷达技术的局域TSP特性分析  

The analysis of local TSP characteristics based on lidar technology

作　　者：陈柯蓓 何梦迪 张琦 冯俊 董昊 倪晓昌[1] 芦宇 CHEN Kebei;HE Mengdi;ZHANG Qi;FENG Jun;DONG Hao;NI Xiaochang;LU Yu(School of Electronic Engineering,Tianjin University of Technology and Education,Tianjin 300222,China)

机构地区：[1]天津职业技术师范大学电子工程学院

出　　处：《智能计算机与应用》2019年第4期258-262,共5页Intelligent Computer and Applications

基　　金：天津市科技特派员项目(16JCTPJC52500);大学生创新训练计划项目(201710066046);教育部产教协同育人项目(XJJW0804);天津市十三五专业建设项目

摘　　要：基于美国国家航空航天局云—气溶胶激光雷达与红外探测卫星搭载的激光雷达CALIPSO卫星系统二级数据,选取了华北地区(纬度范围:38°N^40°N,经度范围:115°E^117°E)3种不同天气特征,与经纬度地理位置相结合,通过后向散射系数不同高度色度显示选取的总悬浮颗粒物(TSP)浓度垂直分布廓线,并利用该分布轮廓线进行了不同特征天气对比分析.结果表明:空气质量优良、轻度雾霾、重度雾霾3种情况下绘制出的二维色度图存在明显颜色和分布的差异,并给出了二维色度图平均值与当天气象局提供的大气悬浮颗粒物浓度的对比关系曲线,表明不同天气TSP浓度垂直分布存在很大差异,对直观分析天气状况具有重要意义.Based on the secondary level data of the lidar CALIPSO satellite system carried by the NASA cloud-aerosol lidar and infrared detector satellites,the North China region was selected(latitude range:38°N^40°N,longitude range:115°E^117°E)by three different characteristic weathers,the vertical distribution profile of the selected total suspended particulate matter(tsp)is displayed by the different height chromaticity of the backscattering coefficient,which is combined with the geographical position of the latitude and longitude,and the two-dimensional chromaticity diagrams is used to analyze the different weather characteristics.The results show that there are obvious differences in the two-dimensional chromaticity diagrams drawn under the three air quality:good weather、light haze、heavy haze.And the local average of the 2D chromaticity is given and compared with the atmosphere provided by the weather bureau.The contrast curve of suspended particulate matter concentration indicates that the vertical distribution of TSP concentration in different weathers is different obviously,which is of great significance for the intuitive analysis of weather conditions.

关 键 词：大气总悬浮颗粒物(TSP) CALIPSO 背散射系数 二维色度图 

分 类 号：TN911[电子电信—通信与信息系统]