Dissolved inorganic carbon, total alkalinity, δ¹⁸O-H2O, δ¹³C-DIC, temperature, and salinity collected from discrete bottle samples from CCGS Amundsen in the Beaufort Sea during August and September 2014 ...

• Main Authors: Thomas, Helmuth, Mol, Jacoba
• Format: Dataset
• Language: English
• Published: PANGAEA 2018
• Subjects: Event label; DEPTH, water; Temperature, water; Salinity; Alkalinity, total; Carbon, inorganic, dissolved; δ13C, dissolved inorganic carbon; δ18O, water; Latitude of event; Longitude of event; Date/Time of event; CTD/Rosette; AMD14_2a; CCGS Amundsen; Beaufort Sea; Mackenzie Shelf; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.886238; https://doi.pangaea.de/10.1594/PANGAEA.886238

The Mackenzie Shelf in the southeastern Beaufort Sea is a region that has experienced large changes in the past several decades as warming, sea-ice loss, and increased river discharge have altered carbon cycling. Upwelling and downwelling events are common on the shelf, caused by strong, fluctuating along-shore winds, resulting in cross-shelf Ekman transport, and an alternating estuarine and anti-estuarine circulation. Downwelling carries inorganic carbon and other remineralization products off the shelf and into the deep basin for possible long-term storage in the world oceans. Upwelling carries dissolved inorganic carbon (DIC) and nutrient-rich waters from the Pacific-origin upper halocline layer (UHL) onto the shelf. Profiles of DIC and total alkalinity (TA) taken in August and September of 2014 are used to investigate the cycling of inorganic carbon on the Mackenzie Shelf. The along-shore transport of water and the cross-shelf transport of inorganic carbon are quantified using velocity field output from ... : Supplement to: Mol, Jacoba; Thomas, Helmuth; Myers, Paul G; Hu, Xianmin; Mucci, Alfonso (2018): Inorganic carbon fluxes on the Mackenzie Shelf of the Beaufort Sea. Biogeosciences, 15(4), 1011-1027 ...