武汉上空平流层气溶胶的激光雷达探测结果的初步分析
PRELIMINARY ANALYSIS ON LIDAR OBSERVATIONS OF STRATOSPHERIC AEROSOL OVER WUHAN
-
摘要: 采用武汉大学双波长激光雷达工作于589 nm波长的观测数据,对2001年3月到2002年1月期间武汉上空平流层气溶胶的消光系数和积分体后向散射系数等光学特性进行初步分析.结果表明,武汉上空平流层气溶胶在16—20 km间存在一气溶胶层,其厚度及散射峰值随季节有一定变化,并且气溶胶积分体后向散射系数在2.2×10-5—7.0×10-4sr-1之间变化,呈现了夏季大冬季小的分布倾向.Abstract: By using the observations obtained by Wuhan University Lidar system at 589 nm wavelength, vertical profile of aerosol extinction coefficient and temporal behavior of the integrated aerosol backscattering coefficient in the low stratosphere are preliminarily analyzed from March 2001 to January 2002. The analysis results show that there is an aerosol layer between 16 km to 20 km in the lower stratosphere over Wuhan (30.5°N, 114.4°E), and aerosol layer width and maximum scattering ratio shows a seasonal variations. Temporal behavior of the integrated backscattering coefficient of stratospheric aerosol shows a seasonal variations trend, also. The variation range is between 2.2 × 10-5sr-1 to 7.0 × 10-4sr-1. They reach their maximum value in summer and minimum value in winter, respectively.
-
Key words:
- Lidar /
- Stratosphere /
- Aerosol
点击查看大图
计量
- 文章访问数: 3025
- HTML全文浏览量: 47
- PDF下载量: 1054
- 被引次数: 0