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Current interest in ocean acidification has led to development and deployment of an underway pCO2-pH system. Built in the lab of Dr. Todd Martz at Scripps Oceanography for LTER, the system is installed by CALCOFI on our quarterly cruises. The system is comprised of a Sunburst Sensors SuperCO2 system for pCO2, a Durafet III pH electrode analyzer used to measure pH (via Honeywell UDA2182), and a Seabird SBE45 thermosalinograph.  Output data from these systems is merged in real time with Lat/Long position on a data hub consisting of a PC running LabView software. Using the ship's uncontaminated seawater feed from ~3m, near-surface data are acquired 7/24 during the cruise.

Links: SCCOOS Ocean Acidification   |   Dr Todd Martz, SIO  |   Publications

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