Significance of Northeast‐Trending Features in Canada Basin, Arctic Ocean
نویسندگان
چکیده
منابع مشابه
Deep mesoscale eddies in the Canada Basin, Arctic Ocean
[1] Numerous eddies have been identified in a seven year time series of mooring observations in the Canada Basin, Arctic Ocean. We focus on a series of deep eddies centered at 1200 m depth, and occupying up to 1500 m of the water column. The deep eddies are found to be spatially localized, only ever being observed at one of four mooring sites of the Beaufort Gyre Observing System in the Canada ...
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In the deep Canada Basin, below the sill depth (about 2400 m) of the Alpha-Mendeleyev Ridge, potential temperature and salinity first increase with depth, then remain uniform from about 2600 m to the bottom (approximately 3500 m). Year-long moored measurements of temperature, salinity and pressure in these deep and homogeneous bottom waters reveal significant vertical excursions with periods of...
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Below the sill depth (at about 2400m) of the Alpha-Mendeleyev ridge complex, the waters of the Canada Basin (CB) of the Arctic Ocean are isolated, with a C isolation age of about 500 yr. The potential temperature y decreases with depth to a minimum ymE 0:524 C near 2400m, increases with depth through an approximately 300m thick transition layer to yhE 0.514 C, and then remains uniform from abou...
متن کاملDynamics in the Deep Canada Basin, Arctic Ocean, Inferred by Thermistor Chain Time Series
A 50-day time series of high-resolution temperature in the deepest layers of the Canada Basin in the Arctic Ocean indicates that the deep Canada Basin is a dynamically active environment, not the quiet, stable basin often assumed. Vertical motions at the near-inertial (tidal) frequency have amplitudes of 10– 20 m. These vertical displacements are surprisingly large considering the downward near...
متن کاملModern Benthic Foraminifer Distribution in the Amerasian Basin, Arctic Ocean
A total of 38 box cores were collected from the Amerasian Basin, Arctic Ocean during the U.S. Geological Survey 1992 (PI92-AR) and 1993 (PI93-AR) Arctic Cruises aboard the U.S. Coast Guard Icebreaker Polar Star. In addition, the cruises collected geophysical data, piston cores and hydrographic data to address the geologic and oceanographic history of the western Arctic Ocean. This paper reports...
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ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2017
ISSN: 1525-2027,1525-2027
DOI: 10.1002/2017gc007099