National Weather Center Colloquium

Ensemble-Based Data Assimilation for Global to Storm-Scale Numerical Weather Prediction

Dr. Xuguang Wang

Associate Professor; Presidential Research Professor
School of Meteorology, University of Oklahoma

08 September 2015, 4:00 PM

National Weather Center, Room 1313
120 David L. Boren Blvd.
University of Oklahoma
Norman, OK

Atmospheric data assimilation has made significant progress over the past 2-3 decades and drastically advanced numerical weather prediction. This colloquium talk will present an overview of methodologies, recent developments, and research in the ensemble-based data assimilation for global- to storm-scale numerical weather predictions. Emphasis will be placed on the hybrid ensemble-variational approach, convection-allowing tropical cyclone predictions assimilating airborne radar data, and on forecasts of convective-scale hazardous weather over the Continental U.S. such as organized mesoscale convective systems and tornadic supercells. Other frontiers and applications of ensemble-based data assimilation including multi-scale ensemble forecast system design, understanding atmospheric dynamics and predictability, and estimating the impacts of observation network will be also discussed. Challenges in ensemble-based data assimilation research will be highlighted.

Dr. Wang earned her B.S. in Atmospheric Science from Beijing University and Ph.D. in Meteorology from Penn State. After holding a postdoctoral scientist position at NOAA/University of Colorado, she joined School of Meteorology of University of Oklahoma. Her research interests include developing novel techniques and methodologies for data assimilation and ensemble prediction, applying these techniques in global- to convective-scale modeling systems, and improving the understanding of atmospheric predictability and dynamics through data assimilation and ensemble approaches. She is a recipient of Innovative Research Award of University of Colorado, NASA New Investigator (Early Career) Award, Dean's Award for Excellence in Research and Scholarship, and Presidential Research Professorship of University of Oklahoma.

National Weather Center Colloquium Seminar Series website