Lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of Lake Baikal

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′...

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Main Authors: V. A. Banakh, I. N. Smalikho
Format: Article
Language:English
Published: Copernicus Publications 2016-10-01
Series:Atmospheric Measurement Techniques
Online Access:http://www.atmos-meas-tech.net/9/5239/2016/amt-9-5239-2016.pdf
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author V. A. Banakh
I. N. Smalikho
author_facet V. A. Banakh
I. N. Smalikho
author_sort V. A. Banakh
collection DOAJ
description 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.</p><p class="p">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<sup>−1</sup>, 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.
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spelling doaj.art-719e40113b4642c79e34ee0ec0118d272022-12-21T22:33:02ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482016-10-019105239524810.5194/amt-9-5239-2016Lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of Lake BaikalV. A. Banakh0I. N. Smalikho1V.E. Zuev Institute of Atmospheric Optics SB RAS, Tomsk, RussiaV.E. Zuev Institute of Atmospheric Optics SB RAS, Tomsk, RussiaAtmospheric 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.</p><p class="p">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<sup>−1</sup>, 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.http://www.atmos-meas-tech.net/9/5239/2016/amt-9-5239-2016.pdf
spellingShingle V. A. Banakh
I. N. Smalikho
Lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of Lake Baikal
Atmospheric Measurement Techniques
title Lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of Lake Baikal
title_full Lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of Lake Baikal
title_fullStr Lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of Lake Baikal
title_full_unstemmed Lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of Lake Baikal
title_short Lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of Lake Baikal
title_sort lidar observations of atmospheric internal waves in the boundary layer of the atmosphere on the coast of lake baikal
url http://www.atmos-meas-tech.net/9/5239/2016/amt-9-5239-2016.pdf
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