Lidar study of the characteristics of gravity waves in the mesopause region at a southern low-latitude location
Lidar study of the characteristics of gravity waves in the mesopause region at a southern low-latitude location
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DOI：
10.1016/j.jastp.2008.01.013
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发表时间：
2008-05
影响因子：
1.9
通讯作者：
Guotao Yang;B. Clemesha;P. Batista;D. Simonich
中科院分区：
文献类型：
--
作者：
Guotao Yang;B. Clemesha;P. Batista;D. Simonich
使用Gardner和Voelz [1987.伊利诺斯州厄巴纳上空夜间钠层的激光雷达研究。引力波。Journal of Geophysical Research 92，4673-4693]和我们提出的一种新方法，从南方低纬地区11年的钠激光雷达观测资料中提取了两组重力波参数。给出了波的出现频率、波参数分布和波参数关系，并与其他激光雷达观测结果进行了比较。不同的激光雷达推导结果可以归因于不同的大气参数。我们还比较了这两组重力波的特征以及扩散滤波理论的预测结果，发现我们的方法得到的重力波关系与扩散滤波理论的预测结果吻合得更好。
Using the technique developed by Gardner and Voelz [1987. Lidar studies of the nighttime sodium layer over Urbana, Illinois, 2. Gravity waves. Journal of Geophysical Research 92, 4673–4693] and a new method proposed by us, two groups of gravity wave parameters are extracted from 11 years sodium lidar measurements made at a southern low-latitude location. The wave occurrence frequencies, wave parameter distributions, and wave parameter relationships are given and compared with other lidar observations. The different lidar derived results can be attributed to different atmospheric parameters. The characteristics of these two groups of gravity waves are also compared, as well as that predicted by diffusive filtering theory, and we find the gravity wave relationships derived from our method are in better agreement with diffusive filtering theory predictions.