1. 2007 IHC – New Orleans 5 – 9 March 2007 JHT Project: Operational SFMR- NAWIPS Airborne Processing and Data Distribution Products OUTLINE 2006 Hurricane Season Precipitation Model Next Steps Dr. Peter Black & Eric Uhlhorn NOAA / AOML / HRD Dr. Paul Chang, Dr. Tim Mavor NOAA / NESDIS / ORA Dr. James Carswell Remote Sensing Solutions Acknowledgements NOAA AOC and ProSensing

2. 2007 IHC – New Orleans 5 - 9 March 2007 2006 Hurricane Season SFMR performed well … GPS comparison: ~ 1 m/s bias, 3 m/s std dev Only 11 anomalies noted observed – all explained.

3. 2007 IHC – New Orleans 5 - 9 March 2007 Summary of Anomalies StormFlight SFMRAnomalies Winds Time (hh:mm)RainDepth Ernesto Aug 29 th Storm 15:58 16:03 16:09 16:56 17:03 17:33 Aug 31 st Storm 15:18 15:20 15:46 16:02 18:45

4. 2007 IHC – New Orleans 5 - 9 March 2007 Rain Model Limitation Rain Induced Anomaly

5. 2007 IHC – New Orleans 5 - 9 March 2007 SFMR Rain Rate Vs. IWRAP Rain Rate Bias (mm/hr) Multiplier Coefficient Error (percentage)

6. 2007 IHC – New Orleans 5 - 9 March 2007 SFMR Rain Rate Vs. IWRAP Wind Speed Bias (knots) Multiplier Coefficient Error (percentage)

7. 2007 IHC – New Orleans 5 - 9 March 2007 IWRAP Measurements Conical Scan (60 rpm) Simultaneous, Multi-Beam Doppler/Reflectivity Profiling Specifications Frequency: C-band & Ku-band Polarization: VV, HH Beam Incidence Angles: 30, 35, 41.5, 50 Altitude Range: 500 – 8000 m Range Resolution: 15, 30, 60 & 120 m Swath Coverage ~ 55 deg. Incidence Proportionally not to scale. IWRAP Rain Retrievals Differential Attenuation Collocated with SFMR High Resolution

8. 2007 IHC – New Orleans 5 - 9 March 2007 SFMR Rain Rate Vs. IWRAP SFMR Rain Estimates Under predicts rain rate by a factor of 2.5 Offset of 5 mm/hr SFMR Rain Rate (mm/hr) IWRAP Rain Rate (mm/hr) Hurricane Rita 22 Sept. 2005 Bin Size: 2.5 mm/hr

9. 2007 IHC – New Orleans 5 - 9 March 2007 Hurricane Isabel: Attenuation Vs. Rain Rate Corrected SFMR Rain Rate UMass SFMR Correction Factor: 2.5 Offset: 5 mm/hr Corrected SFMR Rain Rate (mm/hr) Rain Specific Attenuation (dB/km)

10. 2007 IHC – New Orleans 5 - 9 March 2007 Precipitation: Next Steps 2005 IWRAP rain rates. Development and verification data. Refine the SFMR precipitation model (i.e. attenuation power law model). Validate final SFMR retrievals. Recommend necessary changes to JHT panel.

11. 2007 IHC – New Orleans 5 - 9 March 2007 Thank You QUESTIONS ?

12. 2007 IHC – New Orleans 5 - 9 March 2007 Ernesto Flights: SFMR Retrievals 29 August 200631 August 2006