Search
Now showing items 1-7 of 7
ASSESSMENT OF ONE-MOMENT AND TWO-MOMENT BULK MICROPHYSICS AND SPECTRAL BIN MICROPHYSICS SCHEMES USING IDEALIZED SUPERCELL SIMULATIONS AND REAL DATA CONVECTIVE-SCALE PREDICTIONS
(2019-05)
Optimal hydrometeor parameterization and their associated processes in microphysics schemes (both spectral bin and bulk) continue to evolve as these schemes attempt to match observed hydrometeor complexity. This dissertation ...
Analysis of the Dynamics and Microphysics of a Wet Downburst Case Using Dual-Polarization Radar Data
(2019-05-10)
A significant, wet downburst affected Norman, Oklahoma, on 14 June 2011. Surface winds in excess of 35 m/s (>80 mph) and hailstones in excess of 4 cm diameter occurred during the downburst. The polarimetric S-band (~11.09-cm ...
Impacts of tropopause polar vortices on Arctic sea ice loss
(2019-05)
The Arctic and sea ice cover play fundamental roles in the environment of the Earth system. Improved causal understanding of their changes is needed for meaningful predictions and planning. Among the linkages composing our ...
Simulated Impacts of Tropopause-Penetrating Convection on the Chemical Composition of the Upper Troposphere and Lower Stratosphere
(2019)
Tropopause-penetrating convection is capable of rapidly transporting air from the lower troposphere to the upper troposphere and lower stratosphere (UTLS). Since the vertical redistribution of gases in the atmosphere by ...
Polarimetric and Rapid-Scan Radar Observations of Tornadoes
(2019)
Tornadoes are capable of lofting large pieces of debris that present irregular shapes, near-random orientations, and a wide range of dielectric constants to polarimetric radars. While ties between tornadic debris signature ...
Improving High-Resolution Tropical Cyclone Prediction using a Cycled, GSI-Based Hybrid Ensemble-Variational Data Assimilation System for HWRF with Vortex Scale Observations
(2019-12-13)
A Gridpoint Statistical Interpolation analysis system (GSI)-based, continuously cycled, dual-resolution hybrid ensemble-variational (EnVar) data assimilation (DA) system is developed for the Hurricane Weather Research and ...
Observations of Evolving Lightning, Microphysics, and Kinematics for a Supercell, a Multicell, and a Mesoscale Convective System
(2019)
The Deep Convective Clouds and Chemistry (DC3) field experiment collected data on a variety of storms to investigate the relationships between lightning and other storm processes. This study focuses on the relationships ...