York University
The objectives of the project are:  
1)	Test a prototype SHOW instrument for deployment on a high altitude balloon platform;
2)	Perform atmospheric limb observations with SHOW instrument from a stratospheric balloon platform;
3)	Demonstrate the instrument capability for stratospheric water vapour profile retrieval employing the l'University of Saskatchewan retrieval code and radiative transfer model (SASKTRAN) updated for H2O limb scatter retrievals; 
4)	Increase the instrument Technology Readiness Level (TRL).