Browsing OU - Dissertations by Author "Xue, Ming"
Now showing items 21-27 of 27
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Polarimetric Measurements of Ice Pellets and Aggregated Snow
Bukovcic, Petar (2017-12-15)The recent upgrade of the National Weather Service WSR-88D radar network to polarimetric capabilities provides the abundance of information about the precipitation microphysics. Even with the plethora of polarimetric ... -
THE PREDICTION AND ASSIMILATION OF POLARIMETRIC RADAR DATA USING ENSEMBLE-BASED METHODS
Putnam, Bryan (2016-05-13)Accurately representing the microphysical state of precipitation using bulk microphysics schemes, including the hydrometeor particle size distributions (PSDs), is vital to improving convective-scale forecasts. In this ... -
The Role of Surface Drag in Supercell Tornadogenesis and Mesocyclogenesis: Studies Based on Idealized Numerical Simulations
Roberts, Brett (2017-05)Idealized numerical simulations of supercell thunderstorms have been employed for several decades to study tornadogenesis, providing valuable insights that have helped shape our current understanding of the process. Until ... -
Sensitivities of 1-km Forecasts of Tornadic Supercells to Microphysics Parameterizations, Assimilated Radar Data, and Assimilation Techniques
Stratman, Derek (2016-05-13)The aim of this study is to examine the impact of using five different microphysics parameterization schemes, including single-, double-, and triple-moment microphysics, in an efficient high-resolution data assimilation ... -
Sensitivities of Explicit Hail Predictions and Convective Scale Ensemble Forecasting to Microphysics Parameterizations and Ensemble Data Assimilation Configurations
Labriola, Jonathan (2020-05)The explicit prediction of deep, moist convection is challenging because small model and initial condition errors rapidly grow and degrade forecast skill. Microphysics schemes employed by convection-allowing models represent ... -
STATE AND PARAMETER ESTIMATION USING POLARIMETRIC RADAR DATA AND AN ENSEMBLE KALMAN FILTER
JUNG, YOUNG SUN (2008)The US National Weather Service plans to upgrade the entire operational radar network to polarimetric capability early in the next decade. The goal of this dissertation is to develop methodologies that use polarimetric ... -
THE IMPACT OF SINGLE- AND MULTI-MOMENT MICROPHYSICS ON NUMERICAL SIMULATIONS OF SUPERCELLS AND TORNADOES OF THE 3 MAY 1999 OKLAHOMA TORNADO OUTBREAK
Dawson, Daniel Thomas (2009)Accurate parameterization of cloud and precipitation microphysical processes is critically important in simulation and prediction of severe convective storms, including supercell storms and their associated circulations. ...