the Creative Commons Attribution 3.0 License. Ocean Science Descent and mixing of the overflow plume from Storfjord in

Abstract. Storfjorden in the Svalbard Archipelago is a sill-fjord that produces significant volumes of dense, brineenriched shelf water through ice formation. The dense water produced in the fjord overflows the sill and can reach deep into the Fram Strait. For conditions corresponding to a moderate...

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Bibliographic Details
Main Author: I. Fer
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2007
Subjects:
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.382.4269
http://hal.archives-ouvertes.fr/docs/00/29/83/58/PDF/os-4-115-2008.pdf
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Summary:Abstract. Storfjorden in the Svalbard Archipelago is a sill-fjord that produces significant volumes of dense, brineenriched shelf water through ice formation. The dense water produced in the fjord overflows the sill and can reach deep into the Fram Strait. For conditions corresponding to a moderate ice production year, the pathway of the overflow, its descent and evolving water mass properties due to mixing are investigated for the first time using a high resolution 3-D numerical model. An idealized modeling approach forced by a typical annual cycle of buoyancy forcing due to ice production is chosen in a terrain-following vertical co-ordinate. Comparison with observational data, including hydrography, fine resolution current measurements and direct turbulence measurements using a microstructure profiler, gives confidence on the model performance. The model eddy diffusivity