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was then to test how well an array of from any naturally occurring CO2. sensors, developed and built for the ROVs and autonomous underwater

CONTROL experiment, might perform. vehicles (AUVs) bearing other sen-

Acoustic and optical instruments sors completed the arsenal of tech- were deployed to detect the sound nology employed. The team aboard made by streams of bubbles or spot were extremely pleased and grati? ed them with cameras, while chemical that the sensors and monitoring tools

POWER sensors ‘sniffed out’ the CO2 and they were testing performed far bet-

REACTION the minute amounts of inert chemical ter than expected. This has resulted tracers it contained, so allowing the in some surety that even very small scientists to differentiate this signal releases of CO2 into a marine system

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MTR #7 (18-33).indd 25 8/29/2019 3:48:14 PM