| 2007年冬季大连市区气溶胶垂直剖面特征 |
| |
| 引用本文： | 黄艇,宋煜,肖韶荣,盖晓波.2007年冬季大连市区气溶胶垂直剖面特征[J].气象与环境学报,2009,25(4):31-35. |
| |
| 作者姓名： | 黄艇 宋煜 肖韶荣 盖晓波 |
| |
| 作者单位： | （1大连市气象局，辽宁 大连 116001;2.南京信息工程大学，江苏 南京 210044） |
| |
| 基金项目： | 大连市气象局2006-2007年重点气象科研课题"大气成分资料业务研究"项目资助 |
| |
| 摘 要： | 选用2007年1月8—30日期间8个无云天的激光雷达资料进行分析。基于Fernald方法反演得到气溶胶消光系数廓线，结合无线电探空资料分析了边界层内气溶胶时空分布，并将反演的激光雷达最低观测高度处(180 m)的气溶胶消光系数与地面PM10、能见度资料进行对比分析。结果表明：冬季大连市区气溶胶主要分布在2 km以下区域，早晨和夜间在0.5 km以下区域经常存在一个气溶胶层；气溶胶消光系数廓线与探空资料较吻合；反演激光雷达最低观测高度处(180 m)的气溶胶消光系数与地面的PM10浓度呈正相关，与能见度呈负相关，相关性较好。
|
| 关 键 词： | 米散射激光雷达资料 大气边界层 消光系数 PM 能见度 大连市 |
| 收稿时间： | 2008-12-4 |
| 修稿时间： | 2009-3-17 |
Vertical section characteristics of aerosol in winter of 2007 over Dalian,Liaoning province |
| |
| HUNAG Ting,SONG Yu,XIAO Shao-rong,GAI Xiao-bo.Vertical section characteristics of aerosol in winter of 2007 over Dalian,Liaoning province[J].Journal of Meteorology and Environment,2009,25(4):31-35. |
| |
| Authors: | HUNAG Ting SONG Yu XIAO Shao-rong GAI Xiao-bo |
| |
| Institution: | (1.Dalian Meteorological Bureau, Dalian 116001, China; 2. Nanjing University of Information Science & Technology, Nanjing 210044, China) |
| |
| Abstract: | Lidar data of 8 clear weather days selecting from January 8 to 30 in 2007 were analyzed in Dalian. Aerosol extinction coefficient profiles were retrieved based on Fernald method. The temporal-spatial distributions of aerosol in boundary layer were discussed in terms of the wireless sounding data. At the same time, aerosol extinction coefficient at 180 m height (the lowest observation height) was contrasted with PM10 and visibility on the ground. The results show that aerosol mainly distributes within the height of 2 km in winter over Dalian. There exists an aerosol layer within the height of 0.5 km in the morning and at night. Aerosol extinction coefficient profiles accord with the sounding data. Aerosol extinction coefficient at 180 m height is a positive relation with PM10 concentration on the ground, and it is negative with visibility. |
| |
| Keywords: | Mie lidar data Atmospheric boundary layer Extinction coefficient PM10 Visibility Dalian city |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《气象与环境学报》浏览原始摘要信息 |
| 点击此处可从《气象与环境学报》下载免费的PDF全文 |
