Portele, Tanja C. and Dörnbrack, Andreas and Wagner, Johannes S. and Gisinger, Sonja and Ehard, Benedikt and Pautet, Pierre-Dominique and Rapp, Markus (2018) Mountain Wave Propagation under Transient Tropospheric Forcing: A DEEPWAVE Case Study. Monthly Weather Review, 146 (6), pp. 1861-1888. American Meteorological Society. doi: 10.1175/MWR-D-17-0080.1. ISSN 0027-0644.
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Official URL: http://dx.doi.org/10.1175/MWR-D-17-0080.1
Abstract
The impact of transient tropospheric forcing on the deep vertical mountain wave propagation is investigated by a unique combination of in-situ and remote-sensing observations and numerical modeling. The temporal evolution of the upstream low-level wind follows approximately a cos2 shape and was controlled by a migrating trough and connected fronts. Our case study reveals the importance of the time-varying propagation conditions in the upper troposphere, lower stratosphere (UTLS). Upper-tropospheric stability, the wind profile as well as the tropopause strength affected the observed and simulated wave response in the UTLS. Leg-integrated along-track momentum fluxes (−MFtrack) and amplitudes of vertical displacements of air parcels in the UTLS reached up to 130 kN m−1 and 1500 m, respectively. Their maxima were phase-shifted to the maximum low-level forcing by ≈ 8 h. Small-scale waves (λx ≈ 20–30 km) were continuously forced and their flux values depended on wave attenuation by breaking and reflection in the UTLS region.
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Document Type: | Article | ||||||||||||||||||||||||||||||||
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Title: | Mountain Wave Propagation under Transient Tropospheric Forcing: A DEEPWAVE Case Study | ||||||||||||||||||||||||||||||||
Authors: |
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Date: | 2018 | ||||||||||||||||||||||||||||||||
Journal or Publication Title: | Monthly Weather Review | ||||||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||
Volume: | 146 | ||||||||||||||||||||||||||||||||
DOI: | 10.1175/MWR-D-17-0080.1 | ||||||||||||||||||||||||||||||||
Page Range: | pp. 1861-1888 | ||||||||||||||||||||||||||||||||
Publisher: | American Meteorological Society | ||||||||||||||||||||||||||||||||
ISSN: | 0027-0644 | ||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||
Keywords: | transient tropospheric forcing, deep vertical mountain wave propagation, in-situ and remote-sensing observations | ||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | R - Middle Atmosphere | ||||||||||||||||||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Atmospheric Physics > Transport Meteorology Institute of Atmospheric Physics | ||||||||||||||||||||||||||||||||
Deposited By: | Ziegele, Brigitte | ||||||||||||||||||||||||||||||||
Deposited On: | 13 Mar 2018 18:23 | ||||||||||||||||||||||||||||||||
Last Modified: | 14 Nov 2023 13:35 |
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