Articles | Volume 15, issue 7
Research article
10 Apr 2018
Research article |  | 10 Apr 2018

Hurricane Arthur and its effect on the short-term variability of pCO2 on the Scotian Shelf, NW Atlantic

Jonathan Lemay, Helmuth Thomas, Susanne E. Craig, William J. Burt, Katja Fennel, and Blair J. W. Greenan

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Cited articles

Bakker, D. C. E., Etcheto, J., and Merlivat, L.: Variability of surface water fCO2 during seasonal upwelling in the equatorial Atlantic Ocean as observed by a drifting buoy, Geophys. Res., 106, 9241–9253, 2001. 
Bates, N. R., Merlivat, L., Beaumont, L., and Pequignet, A. C.: Intercomparison of shipboard and moored CARIOCA buoy seawater fCO2 measurements in the Sargasso Sea, Mar. Chem., 72, 239–255, 2000. 
Bates, N. R., Samuels, L., and Merlivat, L.: Biogeochemical and physical factors influencing seawater fCO2 and air–sea CO2 exchange on the Bermuda coral reef, Limnol. Oceanogr., 46, 833–846, 2001. 
Bates, N. R., Best, M. H. P., and Hansell, D. A.: Spatio-temporal distribution of dissolved inorganic carbon and net community production in the Chukchi and Beaufort Seas, Deep-Sea Res., 52, 3303–3323, 2005. 
Borges, A. V., Delille, B., and Frankignoulle, M.: Budgeting sinks and sources of CO2 in the coastal ocean: diversity of ecosystem counts, Geophys. Res. Lett., 32, L14601,, 2005. 
Short summary
We report a detailed mechanistic investigation of the impact of Hurricane Arthur on the CO2 cycling on the Scotian Shelf. We can show that in contrast to common thinking, the deepening of the surface during the summer months can lead to increased CO2 uptake as carbon-poor waters from subsurface water are brought up to the surface. Only during prolonged storm events is the deepening of the mixed layer strong enough to bring the (expected) carbon-rich water to the surface.
Final-revised paper