A method has been developed for improved extreme rain cell tracking by enhancing the Thunderstorm Identification, Tracking, Analysis, and Nowcasting (TITAN) object-based storm tracking algorithm combined with an the optical flow technique, which is a field-based storm cell tracker. The enhanced tracking algorithms has applications for rainfall interpolation in time and space, for characterizing the spatial-temporal properties of rain storms, and for nowcasting. To support the characterization of the spatial-temporal properties, a conceptual rain storm model was proposed and a radar data based calibration procedure developed that makes use of the tracking algorithm. Additional information:

• Muñoz, C., Wang, L-P., Willems, P. (2015), ‘Enhancing high-resolution storm cell tracking: a multi-threshold TITAN algorithm in synergy with optical flow technique’, RainGain Conference “Researchers & water managers preparing cities for a changing climate in the framework of the COP21 preparation”, Marne-la-Vallée, France, 8-9 June 2015
• Muñoz, C., Wang, L-P., Willems, P. (2015), ‘A stochastic spatial-temporal rainfall generator for urban hydrological applications’, 10th International Workshop on “Precipitation in Urban Areas”, Pontresina, Switzerland, 1-5 Dec. 2015