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The Impact of the Temperature Inversion Breakup on the Exchange of Heat and Mass in an Idealized Valley: Sensitivity to the Radiative Forcing

Source: Journal of Applied Meteorology and Climatology:;2015:;volume( 054 ):;issue: 011:;page 2199

Author(s): Leukauf, Daniel; Gohm, Alexander; Rotach, Mathias W.; Wagner, Johannes S.

Publisher: American Meteorological Society

Abstract: he breakup of a nocturnal temperature inversion during daytime is studied in an idealized valley by means of high-resolution numerical simulations. Vertical fluxes of heat and mass are strongly reduced as long as an inversion ...

Airborne Wind Lidar measurements of vertical and horizontal winds for the investigation of orographically induced gravity waves

Source: Journal of Atmospheric and Oceanic Technology:;2017:;volume( 034 ):;issue: 006:;page 1371

Author(s): Witschas, Benjamin; Rahm, Stephan; Dörnbrack, Andreas; Wagner, Johannes; Rapp, Markus

Publisher: American Meteorological Society

Abstract: irborne coherent Doppler wind lidar measurements, acquired during the GW-LCYCLE I campaign performed from 2 to 14 December 2013 in Kiruna, Sweden, are used to investigate internal gravity waves (GWs) induced by flow across ...

The Impact of Horizontal Model Grid Resolution on the Boundary Layer Structure over an Idealized Valley

Source: Monthly Weather Review:;2014:;volume( 142 ):;issue: 009:;page 3446

Author(s): Wagner, Johannes S.; Gohm, Alexander; Rotach, Mathias W.

Publisher: American Meteorological Society

Abstract: he role of horizontal model grid resolution on the development of the daytime boundary layer over mountainous terrain is studied. A simple idealized valley topography with a cross-valley width of 20 km, a valley depth of ...

The World is Not Flat: Implications for the Global Carbon Balance

Source: Bulletin of the American Meteorological Society:;2013:;volume( 095 ):;issue: 007:;page 1021

Author(s): Rotach, Mathias W.; Wohlfahrt, Georg; Hansel, Armin; Reif, Matthias; Wagner, Johannes; Gohm, Alexander

Publisher: American Meteorological Society

Abstract: processes contributing to the global CO2 budget, net uptake by the land surface bears the largest uncertainty. Therefore, the land sink is often estimated as the residual from the other terms that are known with greater ...

Combination of Lidar and Model Data for Studying Deep Gravity Wave Propagation

Source: Monthly Weather Review:;2015:;volume( 144 ):;issue: 001:;page 77

Author(s): Ehard, Benedikt; Achtert, Peggy; Dörnbrack, Andreas; Gisinger, Sonja; Gumbel, Jörg; Khaplanov, Mikhail; Rapp, Markus; Wagner, Johannes

Publisher: American Meteorological Society

Abstract: he paper presents a feasible method to complement ground-based middle atmospheric Rayleigh lidar temperature observations with numerical simulations in the lower stratosphere and troposphere to study gravity waves. Validated ...

Mountain-Wave Propagation under Transient Tropospheric Forcing: A DEEPWAVE Case Study

Source: Monthly Weather Review:;2018:;volume 146:;issue 006:;page 1861

Author(s): Portele, Tanja C.; Dörnbrack, Andreas; Wagner, Johannes S.; Gisinger, Sonja; Ehard, Benedikt; Pautet, Pierre-Dominique; Rapp, Markus

Publisher: American Meteorological Society

Abstract: AbstractThe 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 ...

The Deep Propagating Gravity Wave Experiment (DEEPWAVE): An Airborne and Ground-Based Exploration of Gravity Wave Propagation and Effects from Their Sources throughout the Lower and Middle Atmosphere

Source: Bulletin of the American Meteorological Society:;2015:;volume( 097 ):;issue: 003:;page 425

Author(s): Fritts, David C.; Smith, Ronald B.; Taylor, Michael J.; Doyle, James D.; Eckermann, Stephen D.; Dörnbrack, Andreas; Rapp, Markus; Williams, Bifford P.; Pautet, P.-Dominique; Bossert, Katrina; Criddle, Neal R.; Reynolds, Carolyn A.; Reinecke, P. Alex; Uddstrom, Michael; Revell, Michael J.; Turner, Richard; Kaifler, Bernd; Wagner, Johannes S.; Mixa, Tyler; Kruse, Christopher G.; Nugent, Alison D.; Watson, Campbell D.; Gisinger, Sonja; Smith, Steven M.; Lieberman, Ruth S.; Laughman, Brian; Moore, James J.; Brown, William O.; Haggerty, Julie A.; Rockwell, Alison; Stossmeister, Gregory J.; Williams, Steven F.; Hernandez, Gonzalo; Murphy, Damian J.; Klekociuk, Andrew R.; Reid, Iain M.; Ma, Jun

Publisher: American Meteorological Society

Abstract: he Deep Propagating Gravity Wave Experiment (DEEPWAVE) was designed to quantify gravity wave (GW) dynamics and effects from orographic and other sources to regions of dissipation at high altitudes. The core DEEPWAVE field ...