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Investigation of polarimetric measurements of rainfall at close and distant ranges.
(2007)
As part of continuous modernization of operational weather radar systems, several government agencies have explored adding polarimetric capability to existing networks. Polarimetric measurements of rain have been previously ...
The influence of improved land surface and soil data on mesoscale model predictions.
(2006)
A principal-component regression reveals simple relationships between latent heat flux and other available surface observations. Development of a new parameterization for evaporation from bare soil takes advantage of periods ...
Retrieval of moisture from GPS slant-path water vapor observations using 3DVAR and its impact on the prediction of convection initiation and precipitation.
(2007)
The anisotropic explicit filter is computationally expensive in both CPU time and memory usage. Therefore the implicit recursive filter which is computationally much more efficient is implemented in our 3DVAR system, even ...
Association of winter weather variability in Central and Eastern North America with tropical Pacific sea surface temperature.
(2006)
The analysis of North American daily precipitation and temperature distributions during warm and cold TP SSTA events identified unique changes. In the southeastern U.S., increased precipitation during January-March warm ...
High resolution simulations of the microphysics and electrification in hurricane-like vortices over warm ocean and at landfall.
(2007)
Cloud-to-ground (CG) lightning bursts in the eyewall of mature tropical cyclones (TCs) are believed to be good indicators of imminent intensification of these systems. While numerous well-documented observational cases ...
Role of upper-level wind shear on the structure and maintenance of derecho-producing convective systems.
(2004)
To explore the role of upper-level shear in derecho environments, a set of two-dimensional simulations of density currents within a dry, neutrally stable environment are used to examine the ability of a cold pool to lift ...
Monsoon variability over the Horn of Africa.
(2006)
Over the past several decades, the Horn of Africa has been ravaged by catastrophic droughts and famines. In spite of the devastating frequent droughts and occasional floods in the region, our understanding of the region's ...
Characteristics of tropical cyclones in the North Atlantic and East Pacific.
(2007)
In this dissertation, I present a series of investigations to expand our understanding of TCs in the East Pacific and North Atlantic basins. First, I developed and applied a climatological tool that quickly and succinctly ...