2013-present   Senior Research Scientist, Center for Analysis and Prediction of Storms, University of Oklahoma

2011-present  Adjunct Assistant Professor, School of Meteorology, University of Oklahoma

2008-2013   Research Scientist, Center for Analysis and Prediction of Storms, University of Oklahoma

2008  Ph.D. in Meteorology from University of Oklahoma

1996-2009  Research Scientist, Korea Meteorological Administration

1995  M.S. in Meteorology from Seoul National University, Republic of Korea

My research interests include improvement and optimization of advanced data assimilation (DA) techniques and storm-scale ensemble forecasts using remote-sensing data such as polarimetric radar observations and satellite radiance, and evaluation of various microphysics schemes using remote sensing data. I developed a complex polarimetric radar data simulator that include detailed scattering calculations for different microphysics species. I have also implemented the assimilation of all-sky satellite radiances using the community radiative transfer model (CRTM) in our ensemble Kalman filter (EnKF) DA system.

Another major research area of mine is the experimental real-time storm-scale EnKF DA and ensemble forecasts at 3 km grid spacing during the NOAA Hazardous Weather Testbed (HWT) Spring Experiment (SE) since 2013 (http://forecast.caps.ou.edu).

In my free time, I enjoy stamping cards. It is my big pleasure to send a hand made card to my family and friends on their birthdays.

I have always enjoyed daring challenges from a young age. During our family trip while I was in high school, we were trapped by a typhoon in an island. We lost power, rain was pouring and debris was flying everywhere. I was overwhelmed by its power and size. It was scary but, at the same time, I was fascinated. That typhoon was not well predicted and made me wanted to be a meteorologist.