1. Case of June 29- 30, 1999

2. Dropsonde Jet Lear Jet: (model 35A?) Ceiling: ~ 43,000 Feet (roughly 30 min to 37,000 ft.) Duration: 6 hours; option to refuel at alternate airport Air Speed: ~450 knots (could be less if desired) 4 seats on the plane

3. Dropsondes  450 total  Drops up to 8 per hour (~80 km)  40,000 feet downward  30+ drops per mission  4 in the air at once  No drops over population centers  Drops on straight tracks

4. Scalable tracks

5. Jet Flight Tracks

6. 19 June, 2002 MCV 11-12 June, 2001 MCS BAMEX Deployment Strategies

7. Planning for dropsonde aircraft

8. Science Staffing Dropsonde operator (on jet) Operator assistant (on jet) Dropsonde coordinator (Ops Center)  monitor weather  derive and communicate end points  drops at regular intervals subject to FAA restrictions Population Centers Optimizing dropsonde spacing Backups of all positions (assuming double-crew)

9. 1200 UTC1500 UTC2000 UTC x MCV Developing MCV 19 June, 2002