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Ocean Carbon Studies off Antarctica


On this page
» Overview

» General Information

» Selected Scientific Publications

» Conference Presentations and Posters

» Related Links

Overview
The Southern Ocean is defined as those waters south of 40 degrees south, representing 20% of the world's ocean area and truly a unique ocean setting. Ice sheets covering an area as large as the Antarctic continent form a solid cover that melts back every spring to its southern boundaries and the permanently ice covered coastal regions. Water temperatures range as low as minus 1.8 degrees Celsius, near the freezing point of salt water. Invisible boundaries defined by ocean currents and water properties within the circumpolar currents separate the Southern Ocean in to bands of separate biological and geochemical provinces surrounding Antarctica. It is in these harsh and remote conditions that we have been studying the ocean carbon cycle.


Diatoms.


General Information
Postcards from the Bottom of the Earth
Ken's impressions on a voyage down under.

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Selected Scientific Publications
Buesseler, K.O., Barber, R.T., Dickson, M-L, Hiscock, M.R., Moore, J.K., and R. Sambrotto (2002). The effect of marginal ice-edge dynamics on production and export in the Southern Ocean along 170ºW (PDF). Deep Sea Research II, (2003), 50, 579-60.

Buesseler, K.O., L. Ball, J. Andrews, J. K. Cochran, D. J. Hirschberg, M. P. Bacon, A. Fleer and M. Brzezinski (2001). Upper ocean export of particulate organic carbon and biogenic silica in the Southern Ocean along 170°W (PDF). Deep-Sea Research II, 48, 4275-4297.

Buesseler, K. O., C. Benitez-Nelson, Rutgers van der Loeff, M., Andrews, J., Ball, L., Crossin, G., and M. Charette (2001). An intercomparison of small- and large-volume techniques for thorium-234 in seawater (PDF). Marine Chemistry, 74, 15-28.

Nelson, D.M., R.F. Anderson, R.T. Barber, M.A. Brzezinski, K.O. Buesseler, Z. Chase, R.W. Collier, M.-L. Dickson, R.François, M. Hiscock, S. Honjo, J. Marra, W.R. Martin, R.N. Sambrotto, F.L. Sayles and D.E. Sigmon. 2002. Vertical budgets for organic carbon and biogenic silica in the Pacific sector of the Southern Ocean (PDF), 1996-1998. Deep-Sea Research Part II, 49 (9-10), 1,645-1,673.

Cochran, J. K, K. O. Buesseler, M. P. Bacon, H. W. Wang, D. J. Hirschberg, L. Ball, J. Andrews, G. Crossin and A. Fleer (2000). Short-lived thorium isotopes (234Th, 228Th) as indicators of POC export and particle cycling in the Ross Sea, Southern Ocean (PDF). Deep-Sea Research II., 47 (15-16), 3451-3490.

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Conferences Presentations and Posters
2002 PowerPoint Presentation
"Melting ice, primary production, and particle export in the Southern Ocean—What's the connection?" (PDF)

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Related Links
» US Joint Global Ocean Fluxes (JGOFS) - Southern Ocean Process Study

U.S. National Science Foundation
We gratefully acknowledge the support of the U.S. National Science Foundation.

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