Browsing Thomas, Helmuth by Author "Shadwick, E. H."

Now showing items 1-6 of 6

  • Air-Sea CO2 fluxes on the Scotian Shelf: seasonal to multi-annual variability 

    Shadwick, E. H., H. Thomas, A. Comeau, S. E. Craig, et al. 2010. "Air-Sea CO2 fluxes on the Scotian Shelf: seasonal to multi-annual variability." Biogeosciences 7(11): 3851-3867.
    We develop an algorithm to compute pCO(2) in the Scotian Shelf region (NW Atlantic) from satellite-based estimates of chlorophyll-a concentration, sea-surface temperature, and observed wind speed. This algorithm is based ...

  • Carbon cycling in the Arctic Archipelago: the export of Pacific carbon to the North Atlantic 

    Shadwick, E. H., T. Papakyriakou, AEF Prowe, D. Leong, et al. 2009. "Carbon cycling in the Arctic Archipelago: the export of Pacific carbon to the North Atlantic." Biogeosciences Discussions 6(1): 971-994.
    The Arctic Ocean is expected to be disproportionately sensitive to climatic changes, and is thought to be an area where such changes might be detected. The Arctic hydrological cycle is influenced by: runoff and precipitation, ...

  • Direct observations of diel biological CO2 fixation on the Scotian Shelf, northwestern Atlantic Ocean 

    Thomas, H., S. E. Craig, B. J. W. Greenan, W. Burt, et al. 2012. "Direct observations of diel biological CO2 fixation on the Scotian Shelf, northwestern Atlantic Ocean." Biogeosciences 9(6): 2301-2309.
    Much of the variability in the surface ocean's carbon cycle can be attributed to the availability of sunlight, triggering surface heat flux and photosynthesis, which in turn regulate the biogeochemical cycling of carbon ...

  • Enhanced ocean carbon storage from anaerobic alkalinity generation in coastal sediments 

    Thomas, H., L-S Schiettecatte, K. Suykens, YJ M Kone, et al. 2008. "Enhanced ocean carbon storage from anaerobic alkalinity generation in coastal sediments." Biogeosciences Discussions 5(4): 3575-3591.
    The coastal ocean constitutes the crucial link between land, the open ocean and the atmosphere. Furthermore, its shallow water column permits close interactions between the sedimentary and atmospheric compartments, which ...

  • Satellite observations reveal high variability and a decreasing trend in CO sub(2) fluxes on the Scotian Shelf 

    Shadwick, E. H., H. Thomas, A. Comeau, SE Craig, et al. 2010. "Satellite observations reveal high variability and a decreasing trend in CO sub(2) fluxes on the Scotian Shelf." Biogeosciences Discussions 7(4): 5269-5304.
    We develop an algorithm to compute pCO sub(2) in the Scotian Shelf region (NW Atlantic) from satellite-based estimates of chlorophyll-a concentration, sea-surface temperature, and observed wind speed. This algorithm is ...

  • Seasonal variability of the inorganic carbon system in the Amundsen Gulf region of the southeastern Beaufort Sea 

    Shadwick, E. H., H. Thomas, M. Chierici, B. Else, et al. 2011. "Seasonal variability of the inorganic carbon system in the Amundsen Gulf region of the southeastern Beaufort Sea." Limnology and Oceanography 56(1): 303-322.
    During a year-round occupation of Amundsen Gulf in the Canadian Arctic Archipelago dissolved inorganic and organic carbon (DIC, DOC), total alkalinity (TA), partial pressure of CO(2) (pCO(2)) and related parameters were ...