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Convective Rainfall Rate improvements

Convective Rainfall Rate improvements. 2 nd Convection Workshop Landshut, Germany, 8-10 October 2009 Cecilia Marcos Antonio Rodríguez. Hourly Accumulations. Precipitation accumulated in the last hour (region center time):. Where:

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Convective Rainfall Rate improvements

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  1. Convective Rainfall Rate improvements 2nd 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: • Ai: 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. • Ii: Instantaneous rainfall rate for each scene in mm/h One hour accumulated CRR One hour accumulated Radar

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

  4. Future work: lightning activity Radar (PPI) 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 information CRR with lightning information

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