A Fully Coherent Array for Evaporation Duct Height Estimation at Coastal Boundaries

The Coherent Vertical Array (CoVA) system has been designed to be used during the Coastal Land-Air-Sea Interactions (CLASI) mission for evaporation duct height (EDH) estimation by measuring the grazing angle of the incident, ducted signal. High angular resolution and phase coherence is needed in the CoVA system due to the ducted signal having a narrow grazing angle with small variations translating to large variations in EDH estimation. This paper discusses the design of the CoVA system and the methodology used to achieve high phase coherence. The results obtained by CoVA during CLASI will be presented in future work.