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Case study of wave breaking with high-resolution turbulence measurements with LITOS and WRF simulations

Schneider, Andreas and Wagner, Johannes and Söder, Jens and Gerding, Michael and Lübken, Franz-Josef (2017) Case study of wave breaking with high-resolution turbulence measurements with LITOS and WRF simulations. Atmospheric Chemistry and Physics, 17 (12), pp. 7941-7954. Copernicus Publications. DOI: doi:10.5194/acp-17-7941-2017 ISSN 1680-7316

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Official URL: https://www.atmos-chem-phys.net/17/7941/2017/

Abstract

Measurements of turbulent energy dissipation rates obtained from wind fluctuations observed with the balloon-borne instrument LITOS (Leibniz-Institute Turbulence Observations in the Stratosphere) are combined with simulations with the Weather Research and Forecasting (WRF) model to study the breakdown of waves into turbulence. One flight from Kiruna (68° N, 21° E) and two flights from Kühlungsborn (54° N, 12° E) are analysed. Dissipation rates are of the order of 0. 1 mW kg−1 (∼ 0.01 K d−1) in the troposphere and in the stratosphere below 15 km, increasing in distinct layers by about 2 orders of magnitude. For one flight covering the stratosphere up to ∼ 28 km, the measurement shows nearly no turbulence at all above 15 km. Another flight features a patch with highly increased dissipation directly below the tropopause, collocated with strong wind shear and wave filtering conditions. In general, small or even negative Richardson numbers are affirmed to be a sufficient condition for increased dissipation.

Item URL in elib:https://elib.dlr.de/113781/
Document Type:Article
Title:Case study of wave breaking with high-resolution turbulence measurements with LITOS and WRF simulations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schneider, AndreasUniversity Rostock, IPA, KühlungsbornUNSPECIFIED
Wagner, JohannesDLR, IPAUNSPECIFIED
Söder, JensUniversity Rostock, IPA, KühlungsbornUNSPECIFIED
Gerding, MichaelUniversity Rostock, IPA, KühlungsbornUNSPECIFIED
Lübken, Franz-JosefUniversity Rostock, IPA, KühlungsbornUNSPECIFIED
Date:2017
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:17
DOI :doi:10.5194/acp-17-7941-2017
Page Range:pp. 7941-7954
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:Wave breaking, combination of high-resolution turbulence observations
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics
Deposited By: Ziegele, Brigitte
Deposited On:22 Aug 2017 11:53
Last Modified:02 May 2019 14:05

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