D1.2 Specification report of common test protocols and inter-comparison methodologies. Work Package 1 – New Sensor technologies: innovation and services.

Abstract

The content of the present reports highlights a specific use case specified at the beginning of ENVRIplus project, the measurement of the pCO2 concentration from the air-sea interface to the bottom of the Ocean. The rationales of the relevancy of measuring pCO2 concentration in the sea-water is exposed as being an extremely important parameter for the global Carbon cycle monitoring, and in particular the contribution of the Inorganic Carbon. During the ENVRIplus project timeline, several initiatives have been carried-out by the task partners to (1) assess the use of commercially available sensors for pCO2 measurements and (2) trying to refine a common approach for across-network collaborations. It appears that at the end of the exercise, no mature technology is suitable to cover all requirements needed for disparate networks, and that the Marine RIs have to start more cohesive synergies to achieve a common strategy for new sensors implementation. Nevertheless, Interesting discussions have started inside this task consortium, and future collaborations are engaged to converge towards a future continuum strategy from sea-surface to bottom for the innovative sensors implementation.