Abstract: A recently developed oceanographic sensor from D-2, Inc.—named the Hybrid CTD for its novel, freely flushing, fully internal-field conductivity sensor and conceived in part to improve the resilience of ocean observing—will be described and performance assessments will be discussed based on static and dynamic laboratory calibration work. These will be complemented by ocean observations obtained by piggybacking sensors on research cruises to the Arctic in late summer of 2024 and 2025 and offshore Bermuda in spring/summer 2025. Building on an evaluation/development program initiated in 2018, the focus will be on the CTD technology established in spring 2024.

Dean Fougere (in person)

Vice President of D-2 Incorporated, Director of the Oceanographic Department. Graduated from Roanoke College in 2008 with a BA in Political Science. Worked at D-2 Incorporated since 2008, and have worked in Sales and Marketing, Production, Assembly, Website design and more. Currently expanding the D-2 brand into the Oceanographic field.

R&D Team Leader. Specialty in design and development of high precision sensor measurements. Particular to specialty in the electrical conductivity of fluids over the entire range of possible conductivities. Fuel, Sea Water, UPW, Acids. Pressure and temperature measurement. Specialties: Conductivity, Temperature, Pressure (depth) measurements. Industrial Process Sensor Development and Design. High performance sensor electronics and systems. Inductive power and data telemetry systems. Mechanical, Electrical and Material design high performance sensors.