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.
出处
《量子电子学报》
CAS
CSCD
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)
关键词
激光雷达
瑞利散射
大气密度
温度
平流层
lidar, Rayleigh scattering, air density and temperature, stratosphere
