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My research interests include improving our understanding of clouds and precipitation from satellite, aircraft, and ground-based observational
platforms, as well as using numerical models to understand the wide range of dynamics and microphysical processes
associated with precipitating cloud systems. I also study the interactions of precipitation systems with topography, the land surface, the oceans, weather systems in which they are contained, and the climate system as a whole. To study precipitation processes, I use and validate precipitation retrievals from radar and passive microwave sensors from a diverse set of satellite, aircraft, and ground based platforms (including ground-based scanning dual-polarization Doppler radars), as well as use data from in situ precipitation sensors such as rain gauges, disdrometers, and aircraft probes. I use numerical models, such as the NCEP/NCAR Weather Research and Forecasting (WRF) model, to both improve the representation of cloud microphysical processes in models using observations. I also use these models and reanalysis products understand the environments of precipitation systems as well as the dynamical interactions between precipitation and other components of the earth system.
My research projects have ranged from studying precipitation from the Tropics through Mid- and High-latitudes, including studies of tropical cloud systems and mesoscale convective systems, tropical cyclones, warm season orographic precipitation, mid-latitude convective systems, and high-latitude cyclones. I have participated in the planning, execution, and analysis of field campaigns in 15 projects spanning four continents. I enjoy teaching meteorology, remote sensing, and measurements courses, with an emphasis on melding theory and observations and application of computational methods. I am actively engauged in service to professional societies, including editing the Journal of Applied Meteorology and Climatology and serving on the American Meteorological Society's Science and Technical Advisory Committee on Radar Meteorology.
Professional Experience
- 2012 – present, Associate Professor, Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign
- 2006 – 2012, Assistant Professor, Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign
- 2005 – 2006, Research Scientist II, Department of Atmospheric Science, Colorado State University
- 2003 – 2005, Research Scientist I, Department of Atmospheric Science, Colorado State University
For more information, see my research group web page.
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