Lidar Observations of Middle Atmospheric Density and Temperature Over Qingdao
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摘要: 介绍了中国电波传播研究所瑞利散射激光雷达系统的结构和性能, 阐述了激光雷达探测中层大气密度和温度的工作原理, 给出了青岛地区中层大气密度和温度的初步探测结果. 通过与卫星、探空气球和大气模式数据的结果对比, 验证了激光雷达探测大气温度的可靠性. 基于2008-2009两年的观测, 获得了青岛地区上空中层大气温度的季节变化和平均分布. 激光雷达观测结果表明, 青岛地区平流层温度比CIRA86模式结果高, 且二者偏差呈夏秋季小、冬春季大的特点, 中间层温度则正好相反.Abstract: The structure and performance of CRIRP (China Research Institute of Radiowave Propagation) Rayleigh backscattering lidar are introduced, the principles to derive middle atmospheric density and temperature are described, and the primary results observed over Qingdao are reported. The lidar observed temperatures are validated through comparison with a variety of observational and model data provided by satellite, radiosonde and CIRA86 respectively. The mean and seasonal variation of middle atmospheric temperature profiles is given, based on the observational data during 2008-2009. The lidar results show that stratospheric temperature over Qingdao is higher than the CIRA86 model, and that the difference is small in summer and autumn, and large in winter and spring, while the mesospheric temperature trend is opposite.
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Key words:
- Lidar /
- Rayleigh scattering /
- Middle atmosphere /
- Atmosphere density and temperature
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