1. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia A CMORPH ANALYSIS OF THE CONVECTIVE REGIME OVER BRAZIL Augusto J. Pereira Filho 1 Richard E. Carbone 2 Richard E. Carbone 2 John E. Janowiak 3 Phillip Arkin 4 John Tuttle 2 Ricardo Hallak 1 Hugo A. Karam 5 1 DAC/IAG, University of São Paulo, Brazil 2 TIMES/NCAR, USA 3 Climate Prediction Center/NOAA, USA 4 ESSIC, University of Maryland, College Park, USA 5 Federal University of Rio de Janeiro, Brazil Presented by Cesar Beneti, SIMEPAR, Brazil

2. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia CMORPH RAINFALL ACCUMULATION 20032004 (mm)

3. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia GAUGE RAINFALL ACCUMULATION

4. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia CMORPH RAINFALL FREQUENCY 20032004 (mm)

5. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia HOURLY ACCUMULATION 2003 and 2004 (mm)

6. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia TIME OF MAXIMUM RAINFALL (mm) (UTC) 2003 and 2004

7. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia HOVMÖLLER DIAGRAM

8. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia

9. HOVMÖLLER DIAGRAM

10. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia

11. HOVMÖLLER DIAGRAM

12. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia HOVMÖLLER DIAGRAM

13. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia CONCLUSION Well define diurnal cycle 0 o – 15º S; Thermal and topographic circulation northern coast; 2.5 time wave across the Amazon Basin; Convective systems move preferably westward; Longer than expected propagating systems; Few eastward waves with westward propagation; Hope for improving weather forecast – stats + NWP; Gravity waves, cold pools, and steering levels; Moving cold fronts tend to organized convection over Amazon;

14. Third Workshop of the International Precipitation Working Group October 23-27, 2006, Melbourne, Australia THE END Work supported by: FAPESP and CNPq (BRAZIL) FAPESP and CNPq (BRAZIL) NCAR and ESSIC (USA) NCAR and ESSIC (USA)