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On the formation of vertical vortices in the atmosphere.
(1999)
This dissertation reports on two semi-independent studies of rotating atmospheric convection. The first is an analytical investigation of the linear stability and structure of convection in a mean circular shear. The study ...
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 ...
Tropospheric Polar Vortices and Impacts on Atmospheric Flow from the Arctic to the Mid-Latitudes using a New Global Modeling System
(2020-05-08)
The observed rapid changes in the Arctic are important to quantify not only for understanding the region, but also for understanding how processes between the Arctic and lower latitudes can interact to culminate in high-impact ...
STATE AND PARAMETER ESTIMATION USING POLARIMETRIC RADAR DATA AND AN ENSEMBLE KALMAN FILTER
(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 ...
Improving the Prediction of Nocturnal Convection through the Assimilation of Novel Datasets: Observation Impacts and Error Treatment
(2021-03-01)
Numerical weather prediction (NWP) models often fail to correctly forecast both the initiation and evolution of nocturnal convection. To improve our understanding of such events, researchers collected a unique dataset of ...
The Changing Hydroclimate of the United States Great Plains: Meteorological and Climatological Impacts on Water Resources
(2018-12-14)
In the United States Great Plains (GP), understanding precipitation variability is key in developing an understanding of the present and future availability of water in the region. Numerous studies have investigated the ...
A MOBILE RADAR BASED CLIMATOLOGY OF SUPERCELL TORNADO STRUCTURES AND DYNAMICS
(2010)
Fine-scale-resolution mobile radar observations of supercell tornadoes have been collected by the Doppler On Wheels (DOWs) platform between 1995 and 2010. The result of this ongoing effort is a large observational database ...
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 ...
Machine Learning Co-Production in Operational Meteorology
(2022-08)
Machine learning, deep learning, and other artificial intelligence (AI) methods are becoming popular tools within the meteorological research community. However, despite the breadth of promising AI research and its ...