The comparisons of statistical scores between deterministic forecasts and ensemble nowcasting was performed for evaluating the performances. KOrea NOwcasting system (KONOS) operated in Weather Radar Center (WRC) of the Korea Meteorological Administration (KMA) was used as the deterministic forecasts. Ensemble forecasts obtained from Short-Term Ensemble Prediction System (STEPS) developed in Bureau of Meteorology of Australia was used. In short, KONOS system includes the calculations of motion vectors to extrapolate using Vibrational Echo Track method (VET). On the contrary, STEPS obtained motion vectors by applying the optical flow method. In STEPS, each ensemble member obtains a different field of motion vectors using different initial conditions. The performance will be quantitatively examined using the high spatial and temporal resolution data of radar reflectivity and Radar-AWS Rainrate (RAR) in May to July 2016.
This work was funded by the Korea Meteorological Industry Promotion Agency under Grant KMIPA 2015-5060.
This work was financially supported by the BK21 plus Project of the Graduate School of Earth Environmental Hazard System.