Arctic cruise 2012: ocean acidification research

On August 25, 2012, a team of scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center, Woods Hole Science Center, and the University of South Florida (USF) will board the USCGC Healy in Barrow, Alaska, to begin a 4-week journey in the Arctic Ocean. The team will measure baseline seawater chemistry of the Arctic Ocean in order to improve understanding of ocean acidification in polar regions.



The scientists worked side-by-side with other scientists aboard who were gathering data about the Extended Continental Shelf (ECS, Law of the Sea).

USGS Senior Scientist Lisa Robbins (Lead PI), Paul Knorr (USGS), Jonathan Wynn (USF-Geology and CO-PI), Bogdan Onac (USF-Geology), and Kate McMullen (USGS) will be on board the Healy collecting seawater and mineral samples and analyzing data.

The onboard team will take water samples using the University of South Florida’s Multi-parameter Inorganic Carbon Analyzer (MICA), discrete water samples, and a Rosette sampling unit. This sampling strategy will provide shipboard measurements of alkalinity, pCO2, dissolved inorganic carbon, carbonate, pH, dissolved oxygen, fluorescence, conductivity, temperature, and depth information to the scientists in order to obtain a better understanding of the regional ocean chemistry. The land-based team will analyze the Arctic data feeds and are analyzing samples collected during the cruise. This research is funded by the USGS Coastal and Marine Program and USGS Office of the Regional Executive—Alaska, the National Science Foundation Polar Programs, and in partnership with the University of South Florida and U.S. Coast Guard.

Read more about studying ocean acidification in the Arctic Ocean in USGS Fact Sheet 2012-3058 – Studying Ocean Acidification in the Arctic Ocean.

St. Petersburg Coastal and Marine Science Center, August 2012. Web site.


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