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Influences of source conditions on mountain wave penetration into the stratosphere and mesosphere

Kaifler, Bernd and Kaifler, Natalie and Ehard, Benedikt and Dörnbrack, Andreas and Rapp, Markus and Fritts, David C. (2015) Influences of source conditions on mountain wave penetration into the stratosphere and mesosphere. Geophysical Research Letters, pp. 1-7. Wiley. DOI: 10.1002/2015GL066465 ISSN 0094-8276

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/2015GL066465/full

Abstract

We present atmospheric gravity wave (GW) measurements obtained by a Rayleigh/Raman lidar at Lauder, New Zealand (45∘ S, 170∘ E) during and after the DEEPWAVE campaign. GW activity and characteristics are derived from 557 hours of high-resolution lidar data recorded between June and November 2014 in an altitude range between 28 and 76 km. In this period, strong GW activity occurred in sporadic intervals lasting a few days. Enhanced stratospheric GW potential energy density is detected during periods with high tropospheric wind speeds perpendicular to New Zealand's Southern Alps. These enhancements are associated with the occurrence of quasi-stationary GW (mountain waves). Surprisingly, the largest response in the mesosphere is observed for conditions with low to moderate lower tropospheric wind speeds (2–12 m/s). On the other hand, large-amplitude mountain waves excited by strong tropospheric forcings often do not reach mesospheric altitudes, either due to wave breaking and dissipation in the stratosphere or refraction away from New Zealand.

Item URL in elib:https://elib.dlr.de/99003/
Document Type:Article
Title:Influences of source conditions on mountain wave penetration into the stratosphere and mesosphere
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kaifler, BerndDLR, IPAUNSPECIFIED
Kaifler, NatalieDLR, IPAUNSPECIFIED
Ehard, BenediktDLR, IPAUNSPECIFIED
Dörnbrack, AndreasDLR, IPAUNSPECIFIED
Rapp, MarkusDLR, IPAUNSPECIFIED
Fritts, David C.GATS Inc./BoulderUNSPECIFIED
Date:22 October 2015
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1002/2015GL066465
Page Range:pp. 1-7
Publisher:Wiley
ISSN:0094-8276
Status:Published
Keywords:Deepwave, gravity waves, middle atmosphere, lidar
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Institute of Atmospheric Physics > Lidar
Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Kaifler, Dr. Natalie
Deposited On:02 Nov 2015 11:23
Last Modified:31 Jul 2019 19:55

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