1. Convective Rainfall Rate improvements 2 nd Convection Workshop Landshut, Germany, 8-10 October 2009 Cecilia Marcos Antonio Rodríguez

2. Hourly Accumulations Precipitation accumulated in the last hour (region center time): Where: A i : hourly accumulation, in mm, corresponding to the time i. T: time interval between scenes in hours (T= 0.25) Ф: part of T that corresponds to the time that takes the satellite to reach the centre of the region. I i : Instantaneous rainfall rate for each scene in mm/h One hour accumulated CRR One hour accumulated Radar

3. New Calibration CRR rain rates are, most of the times, lower than radar ones New calibration: provides more weight to the higher rates CRR calibration 2008 Radar (PPI) CRR calibration 2009

4. Future work: lightning activity Objective: to obtain more information about convection through the electrical activity Problem: lightning activity does not always match the precipitation pattern Advantage: pattern improved, mainly in 2D calibration CRR without lightning informationCRR with lightning information Radar (PPI)