Wind‐forced upwelling and internal Kelvin wave generation in Mackenzie Canyon, Beaufort Sea

Carmack, Eddy C.; Kulikov, E. A.

doi:10.1029/98jc00113

Cited by 76 publications

(63 citation statements)

References 22 publications

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“…Correlation between along-shore wind in the northeasterly (southwesterly) direction and upwelling (downwelling) on the Mackenzie Shelf has been shown in numerous studies and models (e.g. Carmack & Kulikov, 1998;Yang et al, 2006;Mathis et al, 2012). In our study, the two largest upwelling episodes on the Mackenzie Shelf, August 11 th to 20 th and September 15 th to 24 th , were preceded by periods of strong (> 20 m s -1 ) and sustained northeasterly winds (Fig.…”

supporting

confidence: 71%

Inorganic carbon fluxes on the Mackenzie Shelf of the Beaufort Sea

Mol

Thomas

Myers

et al. 2017

Preprint

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Abstract. 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 10 remineralization products off the shelf and into the deep basin for possible long-term storage in the world oceans. Upwelling River freshwater, and sea-ice melt on carbon dynamics and air-sea fluxes of carbon dioxide (CO 2 ) in the surface mixed layer. 20Understanding carbon transfer in this seasonally dynamic environment is key to quantify the importance of Arctic shelf regions to the global carbon cycle and provide a basis for understanding how it will respond to the aforementioned climateinduced changes.

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confidence: 71%

Inorganic carbon fluxes on the Mackenzie Shelf of the Beaufort Sea

Mol

Thomas

Myers

et al. 2017

Preprint

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“…This phenomenon is apparent, for example, in coastal upwelling. A strengthened Beaufort Gyre associated with strong northeasterly winds gives rise to upwelling along the southern Beaufort Sea boundaries and downwelling in the central basin (Carmack and Kulikov, 1998;Proshutinsky et al, 2002). The opposite occurs for a weakened Beaufort Gyre.…”

Section: Local-scale Changes Of the Southern Beaufort Seamentioning

confidence: 99%

The Changing Climate of the Arctic

Barber¹,

Lukovich²,

Keogak³

et al. 2009

ARCTIC

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ABSTRACT. The first and strongest signs of global-scale climate change exist in the high latitudes of the planet. Evidence is now accumulating that the Arctic is warming, and responses are being observed across physical, biological, and social systems. The impact of climate change on oceanographic, sea-ice, and atmospheric processes is demonstrated in observational studies that highlight changes in temperature and salinity, which influence global oceanic circulation, also known as thermohaline circulation, as well as a continued decline in sea-ice extent and thickness, which influences communication between oceanic and atmospheric processes. Perspectives from Inuvialuit community representatives who have witnessed the effects of climate change underline the rapidity with which such changes have occurred in the North. An analysis of potential future impacts of climate change on marine and terrestrial ecosystems underscores the need for the establishment of effective adaptation strategies in the Arctic. Initiatives that link scientific knowledge and research with traditional knowledge are recommended to aid Canada's northern communities in developing such strategies.Key words: Arctic climate change, marine science, sea ice, atmosphere, marine and terrestrial ecosystems RÉSUMÉ. Les premiers signes et les signes les plus révélateurs attestant du changement climatique qui s'exerce à l'échelle planétaire se manifestent dans les hautes latitudes du globe. Il existe de plus en plus de preuves que l'Arctique se réchauffe, et diverses réactions s'observent tant au sein des systèmes physiques et biologiques que sociaux. Les incidences du changement climatique sur les processus océanographiques, la glace de mer et les processus atmosphériques s'avèrent évidentes dans le cadre d'études d'observation qui mettent l'accent sur les changements de température et de salinité, changements qui exercent une influence sur la circulation océanique mondiale -également appelée circulation thermohaline -ainsi que sur le déclin constant de l'étendue et de l'épaisseur de glace de mer, ce qui influence la communication entre les processus océaniques et les processus atmosphériques. Les perspectives de certains Inuvialuits qui ont été témoins des effets du changement climatique font mention de la rapidité avec laquelle ces changements se produisent dans le Nord. L'analyse des incidences éventuelles du changement climatique sur les écosystèmes marin et terrestre fait ressortir la nécessité de mettre en oeuvre des stratégies d'adaptation efficaces dans l'Arctique. Des initiatives reliant les recherches et connaissances scientifiques aux connaissances traditionnelles sont recommandées afin de venir en aide aux collectivités du Nord canadien pour que celles-ci puissent aboutir à de telles stratégies.Mots clés : changement climatique de l'Arctique, sciences de la mer, glace de mer, atmosphère, écosystèmes marin et terrestre Traduit pour la revue Arctic par Nicole Giguère.

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“…Deeper waters offshore (below ~220 m) originate in the Atlantic Ocean and Nordic Seas (McLaughlin et al 1996(McLaughlin et al , 2002. Because the shelf break on the Canadian Shelf lies at ~80 m, upwelling events mainly move waters of Pacific origin onto the shelf; limited observations suggest shelf-basin exchange is enhanced by upwelling in both Kugmallit and Mackenzie Canyons , Carmack & Kulikov 1998, for extreme events). The presence of the Mackenzie River likewise insures inputs of freshwater biota and land-derived nutrients, especially in the upper 5 to 10 m of the coastal ocean.…”

Section: Abstract: Arctic · Nutrients · Primary Production · Shelfmentioning

confidence: 99%