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RISRetrieval of Thermal and Microphysical Variables in Observed Convective Storms. Part II: Sensitivity of Cloud Processes to Variation of the Microphysical Parameterization
Publisher: American Meteorological Society
Abstract: The hydrometeor content and thermal fields in a thunderstorm are estimated from a three-dimensional kinematic cloud model employing Doppler wind fields and parameterized microphysical processes. The sensitivity of the cloud ...
Retrieval of Thermal and Microphysical Variables in Observed Convective Storms. Part 1: Model Development and Preliminary Testing
Publisher: American Meteorological Society
Abstract: The air flow in convective storms, the force that regulate the flow, and the processes that produce hydrometeors of various kinds are all being studied intensively by meteorologists using Doppler radar observations. The ...
A Diabatic Lagrangian Technique for the Analysis of Convective Storms. Part I: Description and Validation via an Observing System Simulation Experiment
Publisher: American Meteorological Society
Abstract: diabatic Lagrangian analysis (DLA) technique for deriving potential temperature, water vapor and cloud water mixing ratios, and virtual buoyancy from three-dimensional time-dependent Doppler radar wind and reflectivity ...
A Diabatic Lagrangian Technique for the Analysis of Convective Storms. Part II: Application to a Radar-Observed Storm
Publisher: American Meteorological Society
Abstract: new diabatic Lagrangian analysis (DLA) technique that derives predicted fields of potential temperature, water vapor and cloud water mixing ratios, and virtual buoyancy from three-dimensional, time-dependent wind and ...
Observed Lightning Morphology Relative to Modeled Space Charge and Electric Field Distributions in a Tornadic Storm
Publisher: American Meteorological Society
Abstract: This study uses a kinematic numerical cloud model that includes electrification and lightning discharge processes to investigate hypotheses concerning intracloud lightning flash rates in the Binger, Oklahoma, tornadic storm ...
Aerosol Effects on Simulated Storm Electrification and Precipitation in a Two-Moment Bulk Microphysics Model
Publisher: American Meteorological Society
Abstract: he effects of cloud condensation nuclei (CCN) concentrations are found to strongly affect the microphysical and electrical evolution of a numerically simulated small multicell storm. The simulations reproduce the well-known ...
The Formation of Small-Scale Atmospheric Vortices via Baroclinic Horizontal Shearing Instability
Publisher: American Meteorological Society
Abstract: his study presents a series of idealized simulations that attempt to replicate shear zones typical of drylines and other near-surface boundaries in the presence of horizontal virtual density gradients. The series of dry ...
The Formation of Small-Scale Atmospheric Vortices via Horizontal Shearing Instability
Publisher: American Meteorological Society
Abstract: otivated by high-resolution observations of small-scale atmospheric vortices along near-surface boundaries, this study presents a series of idealized simulations that attempt to replicate shear zones typical of drylines ...
An Observational Study of the Dryline
Publisher: American Meteorological Society
Abstract: This study presents analyses of data collected in the vicinity of a cloud-free dryline that occurred in western Oklahoma on 24 May 1989. Observations reveal sharp contrasts across the quasi-stationary, north-south dryline ...
Forecasting Hail Using a One-Dimensional Hail Growth Model within WRF
Publisher: American Meteorological Society
Abstract: he HAILCAST hail growth model has been integrated into the Advanced Research version of the Weather Research and Forecasting (WRF-ARW) Model to predict hail size at the ground. Significant updates to the physics of the ...