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Observations of the Flow of Abyssal Water through the Samoa Passage

Observations of the Flow of Abyssal Water through the Samoa Passage During the fall of 1994 a conductivity––temperature––depth//hydrographic survey was carried out as part of the World Ocean Circulation Experiment one-time survey, Line P15N. The survey included standard water properties required by WOCE. Line P15N extended southward from the Aleutian Islands along 165°°W into the vicinity of the Samoa Passage. The line was adjusted to follow the axis of the passage, and time was found to complete a cross-section survey across the passage. This paper will present geostrophic computations of flow velocities through the gap, including transport estimates, and will present longitudinal plots of properties. The longitudinal plots show evidence of hydraulic control at the sill in the Samoa Passage. A best estimate of northward transport of water colder than 1.2°°C (potential temperature) is determined to be 8.4 Sv. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Physical Oceanography American Meteorological Society

Observations of the Flow of Abyssal Water through the Samoa Passage

Journal of Physical Oceanography , Volume 31 (8) – Jan 18, 2000

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References (9)

Publisher
American Meteorological Society
Copyright
Copyright © 2000 American Meteorological Society
ISSN
1520-0485
DOI
10.1175/1520-0485(2001)031<2273:OOTFOA>2.0.CO;2
Publisher site
See Article on Publisher Site

Abstract

During the fall of 1994 a conductivity––temperature––depth//hydrographic survey was carried out as part of the World Ocean Circulation Experiment one-time survey, Line P15N. The survey included standard water properties required by WOCE. Line P15N extended southward from the Aleutian Islands along 165°°W into the vicinity of the Samoa Passage. The line was adjusted to follow the axis of the passage, and time was found to complete a cross-section survey across the passage. This paper will present geostrophic computations of flow velocities through the gap, including transport estimates, and will present longitudinal plots of properties. The longitudinal plots show evidence of hydraulic control at the sill in the Samoa Passage. A best estimate of northward transport of water colder than 1.2°°C (potential temperature) is determined to be 8.4 Sv.

Journal

Journal of Physical OceanographyAmerican Meteorological Society

Published: Jan 18, 2000

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