激光雷达探测平流层中上部大气密度和温度  

Atmospheric Density and Temperature Measurement with Lidar in the Middle and Upper Stratosphere

作　　者：吴永华[1] 胡欢陵[1] 胡顺星[1] 周军[1] 张民 

机构地区：[1]中国科学院安徽光学精密机械研究所

出　　处：《量子电子学报》2000年第5期426-431,共6页Chinese Journal of Quantum Electronics

基　　金：国家863计划激光技术领域和国家自然科学基金!(49775258)

摘　　要：用 Ｌ６２５ ３５５ ｎｍ　和 ５３２ ｎｍ　双通道瑞利（Ｒａｙｌｅｉｇｈ）散射激光富达，分别观 测合肥（３１．９°Ｎ／１１７．１７°Ｅ）地区 ３０～４３ ｋｍ高度范围内的大气密度和温度分布．这些结果与 ＮＯＡＡ／ＮＭＣ和 ＮＡＳＡ／ＨＡＬＯＥ相邻地点的密度和温度表现了较好的一致性．一般情况下，在 ３４—４３ ｋｍ 高度范围内激光雷达获得的大气密度与 ＮＯＡＡ／ＮＭＣ和 ＮＡＳＡ／ＨＡＬＯＥ 密度的偏 差大约为 １０％，温度差别小于 ２ Ｋ，而 ３４ ｋｍ以下温度偏差稍大．L625 Rayleigh scattering lidar made the measurements of air density and temperature over the altitudes of 30-43 km at Hefei (31.9'N/117.17'E), two laser beams with 355 nm and 532 nm were employed, respectively. The results of lidar agreed well with ones of NOAA/NMC and NASA/HALOE. Generally, the differences of density.were about 10%, and temperature biases were less than 2 K between the altitude 34 km and 43 km, but a little larger below 34 km.

关 键 词：激光雷达 瑞利散射 大气密度 温度 平流层 

分 类 号：TN958.98[电子电信—信号与信息处理]