Lidar observations of atmospheric internal waves in the boundary layer of
the atmosphere on the coast of Lake Baikal
-
Published:2016-10-27
Issue:10
Volume:9
Page:5239-5248
-
ISSN:1867-8548
-
Container-title:Atmospheric Measurement Techniques
-
language:en
-
Short-container-title:Atmos. Meas. Tech.
Author:
Banakh Viktor A.,Smalikho Igor N.
Abstract
Abstract. Atmospheric internal waves (AIWs) in the boundary layer of atmosphere have been studied experimentally with the use of Halo Photonics pulsed coherent Doppler wind lidar Stream Line. The measurements were carried out over 14–28 August 2015 on the western coast of Lake Baikal (51°50′47.17′′ N, 104°53′31.21′′ E), Russia. The lidar was placed at a distance of 340 m from Lake Baikal at a height of 180 m above the lake level.A total of six AIW occurrences have been revealed. This always happened in the presence of one or two (in five out of six cases) narrow jet streams at heights of approximately 200 and 700 m above ground level at the lidar location. The period of oscillations of the wave addend of the wind velocity components in four AIW events was 9 min, and in the other two it was approximately 18 and 6.5 min. The amplitude of oscillations of the horizontal wind velocity component was about 1 m s−1, while the amplitude of oscillations of the vertical velocity was 3 times smaller. In most cases, internal waves were observed for 45 min (5 wave oscillations with a period of 9 min). Only once the AIW lifetime was about 4 h.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference33 articles.
1. Banakh, V. A., Brewer, V. A., Pichugina, E. L., and Smalikho, I. N.: Measurements of wind velocity and direction with coherent Doppler lidar in conditions of a weak echo signal, Atmos. Oceanic Optics, 23, 381–388, https://doi.org/10.1134/S1024856010050076, 2010. 2. Banakh, V. and Smalikho, I.: Coherent Doppler Wind Lidars in a Turbulent Atmosphere, Artech House Publishers, ISBN-13: 978-1-60807-667-3, 2013. 3. Banakh, V. A., Smalikho, I. N., Falits, A. V., Belan, B. D., Arshinov, M. Y., and Antokhin, P. N.: Joint radiosonde and Doppler lidar measurements of wind in the boundary layer of the atmosphere, Atmos. Oceanic Optics, 28, 185–191, https://doi.org/10.1134/S1024856015020025, 2015. 4. Baumgarten, G., Fiedler, J., Hildebrand, J., and Lübken, F.-J.: Inertia gravity wave in the stratosphere and mesosphere observed by Doppler wind and temperature lidar, Geophys. Res. Lett., 42, 10929–10936, https://doi.org/10.1002/2015GL066991, 2015. 5. Benediktov, E. A., Belikovich, V. V., Bakhmet'eva, N. V., and Tolmacheva, A. V.: Seasonal and daily variations of the velocity of vertical motions at altitudes of the mesosphere and lower thermosphere near Nizhny Novgorod, Geomagn. Aeron., 37, 88–94, 1997.
Cited by
48 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|