1. Outline 2004 Hurricane Drifter Deployment Overview 2004 Hurricane Drifter Deployment Overview Atmospheric Pressure Results from Hurricanes Fabian (2003), Frances (2004) and Jeanne (2004) Atmospheric Pressure Results from Hurricanes Fabian (2003), Frances (2004) and Jeanne (2004) Wind Data Results from Hurricane Fabian Wind Data Results from Hurricane Fabian

2. Review of 2003 Experiment

3. What We Dropped 16 Minimet Drifters 16 Minimet Drifters

5. Drifter Life 2 Did not transmit data 2 Did not transmit data 3 Quit working within 2 hours of deployment 3 Quit working within 2 hours of deployment 3 Transmitted from drop site, but died 3 Transmitted from drop site, but died before complete hurricane passage before complete hurricane passage 8 Provided data through hurricane and beyond 8 Provided data through hurricane and beyond

6. What We Learned Acoustic wind sensor saturated at high winds Acoustic wind sensor saturated at high winds Sealing of some buoys not properly done Sealing of some buoys not properly done Buoys can be effectively air dropped in front of a hurricane Buoys can be effectively air dropped in front of a hurricane

7. 2004 Experiment 14 Minimet 14 Minimet 8 ADOS 8 ADOS 14 SVP with 100m drogue 14 SVP with 100m drogue 3 Standard SVP-B 3 Standard SVP-B 39 Total Buoys 39 Total Buoys

8. Buoy Sensors ADOS 100m Thermistor Chain 100m Thermistor Chain Barometer (+/- 1mb.) Barometer (+/- 1mb.) SST Thermistor (+/- 0.1 º C) SST Thermistor (+/- 0.1 º C) Wind Direction – Compass/Vane (+/-10 º ) Wind Direction – Compass/Vane (+/-10 º ) Wind Speed – WOTAN (+/-??) Wind Speed – WOTAN (+/-??) Irradiance Sensors Irradiance Sensors Minimet Barometer (+/- 1mb.) Thermistor (+/- 0.1ºC) Submergence Sensor (drogue on/off) Wind Direction – Compass/Vane (+/-10º) Wind Speed – WOTAN (+/-??)

9. Drifter Life 35 of 39 Drifters transmitted data through the hurricane 35 of 39 Drifters transmitted data through the hurricane 37 of 39 drifters eventually transmitted data 37 of 39 drifters eventually transmitted data 1 never worked 1 never worked 1 stopped working after 1 day 1 stopped working after 1 day

10. 2004 Array – Frances

16. Wind Direction Data in Hurricane Fabian

20. The End