Determining the parameters of wave disturbances of the middle atmosphere from lidar measurements

被引：2
|
作者：
Korshunov V.A. [1 ]
Zubachev D.S. [1 ]
机构：
[1] Research and Production Association Taifun, ul. Pobedy 4, Obninsk
来源：
Atmospheric and Oceanic Optics | 2016年 / 29卷 / 2期
关键词：
gravity waves; lidar; middle atmosphere; wavelet analysis;
D O I：
10.1134/S1024856016020081
中图分类号：
学科分类号：
摘要：
Altitude profiles of temperature of the middle atmosphere (30–60 km) are determined from data of lidar sensing at wavelengths of 355 and 532 nm using a modified Rayleigh method. Temperature disturbances are discriminated against the background of average profiles, using a smoothing spline. The altitude profiles of the potential energy density of gravity waves are calculated directly according to temperature fluctuations. A continuous wavelet analysis is used to determine the spectral characteristics of wave disturbances, including local power spectra of temperature fluctuations and potential energy, as well as vertical phase velocity and period for extracted wavelengths. The developed software tools make it possible to determine the characteristics of the wave disturbances localized in time and identified with respect to wavelengths of wave disturbances (wave packets). Lidar measurements in Obninsk are described. © 2016, Pleiades Publishing, Ltd.
引用
收藏
页码：152 / 161
页数：9
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