Mission Deployment Summary
The scientific objectives set both by the requirements for AURA calibration/validation and by the primary hypotheses outlined above require a deployment strategy that departs significantly from that employed so successfully for the study of Antarctic and Arctic ozone loss. In particular, the entangled nature of dynamics, radiation and chemistry in the tropics and subtropics requires far more integrated approach to the union between satellite observations, modeling and in situ airborne measurements. The nature of the problem also requires far more extensive spatial and seasonal coverage using a far more intricate overlay of aircraft trajectories with the physical/chemical phenomena that must be spatially resolved. Consideration of the sophistication required of the in situ instrumentation also carries important practical considerations because of the severe requirements intrinsic to operations in the tropics; specifically the very large dynamic range in vapor, liquid, and ice water, temperature and vertical velocities encountered in flight as well as the impact of severe rainfall events on ground operations. This demands a careful strategy of testing those instruments in flight, testing the operational protocol employed in ground operations, and testing calibration procedures executed in the field for those instruments.