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What Causes the Seasonal Cycle of Stationary Waves in the Southern Stratosphere?
Publisher: American Meteorological Society
Abstract: Stationary planetary waves in the southern stratosphere display a characteristic seasonal cycle. Previous research based on a one-dimensional model suggests that this behavior is mainly determined by seasonally varying ...
Cyclone–Anticyclone Asymmetry Concerning the Height of the Thermal and the Dynamical Tropopause
Publisher: American Meteorological Society
Abstract: The differences between upper-tropospheric cyclones and anticyclones are investigated regarding the height of the thermal and the dynamical tropopause. The problem is addressed in an idealized framework by analyzing ...
The Onset of a Blocking Event as a “Traffic Jam”: Characterization with Ensemble Sensitivity Analysis
Publisher: American Meteorological Society
Sensitivity of Banner Cloud Formation to Orography and the Ambient Atmosphere: Transition from Idealized to More Realistic Scenarios
Publisher: American Meteorological Society
Diagnosing the Impact of Stratospheric Planetary Wave Breaking in a Linear Model
Publisher: American Meteorological Society
Abstract: In the past, linear quasigeostrophic theory has proven successful in modeling the vertical and meridional propagation of stationary planetary waves in the stratosphere. Since in such models the wave solution does not ...
What Flow Conditions are Conducive to Banner Cloud Formation?
Publisher: American Meteorological Society
Abstract: anner clouds are clouds that are attached to the leeward slope of a steep mountain. Their formation is essentially due to strong Lagrangian uplift of air in the lee of the mountain. However, little is known about the flow ...
Resolution Dependence of the Tropopause Inversion Layer in an Idealized Model for Upper-Tropospheric Anticyclones
Publisher: American Meteorological Society
Abstract: This note investigates the dependence of the extratropical tropopause inversion layer (TIL) on numerical resolution in an idealized modeling framework. Axisymmetric upper-tropospheric anticyclones are constructed by ...
Origin and Flow History of Air Parcels in Orographic Banner Clouds
Publisher: American Meteorological Society
Abstract: anner clouds are clouds in the lee of steep mountains or sharp ridges. Previous work suggests that the main formation mechanism is vertical uplift in the lee of the mountain. On the other hand, little is known about the ...
Mechanisms of Banner Cloud Formation
Publisher: American Meteorological Society
Abstract: anner clouds are clouds in the lee of steep mountains or sharp ridges. Their formation has previously been hypothesized as due to three different mechanisms: (i) vertical uplift in a lee vortex (which has a horizontal ...