The circulation, water masses and sea-ice of Baffin Bay

Tang, Choon Yik; Ross, Charles K.; Yao, T.; Petrie, Brian; DeTracey, Brendan; Dunlap, Ewa

doi:10.1016/j.pocean.2004.09.005

Cited by 297 publications

(415 citation statements)

References 53 publications

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“…Since this study will examine the downstream modifications of the Arctic outflows, we will use the term "Arctic water" to identify waters with temperature of <0°C and salinity of <33.7. This definition follows the work of Tang et al [2004] in Baffin Bay. Arctic water is mainly composed of the PML and UHL waters that have been altered by mixing with sea ice meltwater and river runoff during their passage through the CAA.…”

Section: Methodsmentioning

confidence: 99%

“…A portion of both branches enters Baffin Bay along the eastern side of Davis Strait and contributes to the cyclonic circulation in the bay. The waters carried by these currents can be traced to northern Baffin Bay where they are found at the mouth of Nares Strait [Tang et al, 2004].…”

Section: Methodsmentioning

confidence: 99%

“…Most of Baffin Bay from 300 to 1200 m is filled with the West Greenland Intermediate water; parts of the basin deeper than 1200 m contain Baffin Bay deep water [Tang et al, 2004].…”

Section: Methodsmentioning

confidence: 99%

“…[40] The bottom topography along the western margin of Davis Strait causes Arctic water to extend farther eastward over deeper water and increases the potential for mixing with Irminger and West Greenland Current waters [Tang et al, 2004;Cuny et al, 2005]. The BIC waters are subject to enhanced tidal mixing at the southern end of Baffin Island and in Hudson Strait.…”

Section: Arctic Water Outflowmentioning

confidence: 99%

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Calcium carbonate saturation states in the waters of the Canadian Arctic Archipelago and the Labrador Sea

Azetsu-Scott¹,

Clarke²,

Falkner³

et al. 2010

J. Geophys. Res.

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118

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Ocean acidification is predicted to occur first in polar oceans. We investigated the saturation state of waters with respect to calcite (Ωcal) and aragonite (Ωarg) in six sections along an Arctic outflow pathway through the Canadian Arctic Archipelago (CAA) and into the northwestern Atlantic using dissolved inorganic carbon and total alkalinity measurements from 2003 to 2005. The study area, a key region connecting the Arctic and the North Atlantic, includes Smith Sound, Barrow Strait, Baffin Bay, Davis Strait, Hudson Strait, and the Labrador Sea. The average Ωarg in the Arctic outflow was 1.18 ± 0.17 in Barrow Strait and 1.31 ± 0.14 in Smith Sound, with areas where Ωarg < 1. The Arctic outflow through the CAA has a high content of Pacific waters, which have a low saturation state. These waters can be traced along the western Baffin Bay to Davis Strait. South of Davis Strait, this outflow is modified by mixing with slope and offshore waters of Atlantic origin and with the outflow from Hudson Strait. Despite the mixing, low saturation state water can still be identified on the southern Labrador Shelf. The aragonite saturation horizon is found at ∼150 m in Barrow Strait; at 200 m in Baffin Bay, Davis Strait, and Hudson Strait; and at 2300 m in the Labrador Sea. This study provides baseline data of the saturation states for the waters of the CAA and the northwest Atlantic. It also illustrates the downstream evolution of low saturation state Arctic outflow in the northwest Atlantic.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Most of Baffin Bay from 300 to 1200 m is filled with the West Greenland Intermediate water; parts of the basin deeper than 1200 m contain Baffin Bay deep water [Tang et al, 2004].…”

Section: Methodsmentioning

confidence: 99%

Section: Arctic Water Outflowmentioning

confidence: 99%

See 2 more Smart Citations

Calcium carbonate saturation states in the waters of the Canadian Arctic Archipelago and the Labrador Sea

Azetsu-Scott¹,

Clarke²,

Falkner³

et al. 2010

J. Geophys. Res.

Self Cite

118

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show abstract

“…Intercepting the CAA freshwater outflow further south, Loder et al (1998), Tang et al (2004) and Cuny et al (2006) provide estimates of 120 and 130 mSv for the annual mean freshwater flux passing south through the Ross Moored Array at 66°N in Davis Strait in the late 1980s (Ross, 1992). Making allowance for a northgoing component on the West Greenland Shelf, Cuny et al suggest that the net southward flux through the Strait reduces to 92 mSv.…”

Section: Davis Straitmentioning

confidence: 99%

Current estimates of freshwater flux through Arctic and subarctic seas

Dickson

Rudels²,

Dye

et al. 2007

Progress in Oceanography

246

227

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Ocean acidification in the three oceans surrounding northern North America

Yamamoto‐Kawai

McLaughlin

Carmack

2013

J. Geophys. Res. Oceans

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[1] The uptake of anthropogenic CO 2 drives ocean acidification, with attendant effects on the saturation state of calcium carbonate (X) and marine ecosystems. Here, we examine ocean acidification within the context of large-scale water mass exchange and local physical and biogeochemical processes along a section around northern North America. Waters in the North Pacific are preconditioned by the global-scale circulation to be low X source waters and as they move northward across the Bering and Chukchi seas they are modified by biological activity. These waters then enter the Canada Basin and Canadian Arctic Archipelago where cooling, river discharge, sea ice formation and biological activities modify water mass characteristics further. Continuing eastward into Baffin Bay, relatively low X waters extend from the surface to depth due to remineralization. Changes in X are large along this pathway and the response of local marine ecosystems will likewise be shaped by the biogeography of species occupying a given region.

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The circulation, water masses and sea-ice of Baffin Bay

Cited by 297 publications

References 53 publications

Calcium carbonate saturation states in the waters of the Canadian Arctic Archipelago and the Labrador Sea

Calcium carbonate saturation states in the waters of the Canadian Arctic Archipelago and the Labrador Sea

Current estimates of freshwater flux through Arctic and subarctic seas

Ocean acidification in the three oceans surrounding northern North America

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