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RISA Two-Dimensional Linear Stability Analysis of the Multiple Vortex Phenomenon
Publisher: American Meteorological Society
Abstract: Two numerical models have been constructed and used to investigate the formation of secondary vortices in axisymmetrically forced rotating flows. The vortex flow examined is that developed in a laboratory vortex simulator ...
Plausibility of Substantial Dry Adiabatic Subsidence in a Tornado Core
Publisher: American Meteorological Society
Abstract: The question of whether or not the cores of some tornadoes are significantly warmed above the moist adiabatic temperature of their parent Cb by dry adiabatic subsidence is discussed in terms of limited supporting evidence ...
A Comparison of Baroclinic Instability with the Time Variations of Kinetic Energy in a General Circulation Model
Publisher: American Meteorological Society
Abstract: The flow generated by a general circulation model is zonally averaged at 1-day intervals, and, for each of the axisymmetric flows obtained, the linear growth-rate spectrum for baroclinic waves is computed using a linear ...
Some Effects of Momentum Diffusion on Axisymmetric Vortices
Publisher: American Meteorological Society
Abstract: In the absence of momentum diffusion (viscous or turbulent) in a steady state axially bounded vortex, such as that produced by a Ward-type tornado simulator, a two-celled vortex configuration in which the inner cell is ...
A Modeling Investigation of the Potential Impacts of Pollution Aerosols on Hurricane Harvey
Publisher: American Meteorological Society
A Direct Method for Constructing Refined Regions in Unstructured Conforming Triangular–Hexagonal Computational Grids: Application to OLAM
Publisher: American Meteorological Society
Abstract: scheme is presented for constructing refined regions of 2D unstructured computational meshes composed of triangular cells. The method preserves the conforming property of the original unrefined mesh and does not produce ...
The Ocean–Land–Atmosphere Model (OLAM). Part II: Formulation and Tests of the Nonhydrostatic Dynamic Core
Publisher: American Meteorological Society
Abstract: The dynamic core of the Ocean?Land?Atmosphere Model (OLAM), which is a new global model that is partly based on the Regional Atmospheric Modeling System (RAMS), is described and tested. OLAM adopts many features of its ...
The Ocean–Land–Atmosphere Model (OLAM). Part I: Shallow-Water Tests
Publisher: American Meteorological Society
Abstract: The Ocean?Land?Atmosphere Model (OLAM) has been developed to extend the capabilities of the Regional Atmospheric Modeling System (RAMS) to a global model domain. OLAM adopts many features of its predecessor, including ...
Examination of Aerosol-induced Convective Invigoration using Idealized Simulations
Publisher: American Meteorological Society
Abstract: Idealized large eddy simulations (LES) are performed of deep convective clouds over south Florida to examine the relative role of aerosol-induced condensational versus mixed-phase invigoration to convective intensity and ...
Simulated Links between Deforestation and Extreme Cold Events in South America
Publisher: American Meteorological Society
Abstract: any modeling studies have indicated that deforestation will increase the average annual temperature in the Amazon. However, few studies have investigated the potential for deforestation to change the frequency and intensity ...