World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Confluence and Redistribution of Atlantic Water in the Nansen, Amundsen and Makarov Basins : Volume 20, Issue 2 (30/11/-0001)

By Schauer, U.

Click here to view

Book Id: WPLBN0004001043
Format Type: PDF Article :
File Size: Pages 17
Reproduction Date: 2015

Title: Confluence and Redistribution of Atlantic Water in the Nansen, Amundsen and Makarov Basins : Volume 20, Issue 2 (30/11/-0001)  
Author: Schauer, U.
Volume: Vol. 20, Issue 2
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
-0001
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Björk, G., Rudels, B., Jones, E. P., Schauer, U., Larsson, A., Swift, J. H.,...Ivanov, V. (-0001). Confluence and Redistribution of Atlantic Water in the Nansen, Amundsen and Makarov Basins : Volume 20, Issue 2 (30/11/-0001). Retrieved from http://www.hawaiilibrary.net/


Description
Description: Alfred-Wegener-Institute for Polar and Marine Research, Bremerhaven, Germany. The waters in the Eurasian Basin are conditioned by the confluence of the boundary flow of warm, saline Fram Strait water and cold low salinity water from the Barents Sea entering through the St. Anna Trough. Hydrographic sections obtained from RV Polarstern during the summer of 1996 (ACSYS 96) across the St. Anna Trough and the Voronin Trough in the northern Kara Sea and across the Nansen, Amundsen and Makarov basins allow for the determination of the water mass properties of the two components and the construction of a qualitative picture of the circulation both within the Eurasian Basin and towards the Canadian Basin. At the confluence north of the Kara Sea, the Fram Strait branch is displaced from the upper to the lower slope and it forms a sharp front to the Barents Sea water at depths between 100 m and greater than 1000 m. This front disintegrates downstream along the basin margin and the two components are largely mixed before the boundary current reaches the Lomonosov Ridge. Away from the continental slope, the presence of interleaving structures coherent over wide distances is consistent with low lateral shear. The return flow along the Nansen Gakkel Ridge, if present at all, seems to be slow and the cold water below a deep mixed layer there indicates that the Fram Strait Atlantic water was not covered with a halocline for about a decade. Anomalous water mass properties in the interior of the Eurasian Basin can be attributed to isolated lenses rather than to baroclinic flow cores. Eddies have probably detached from the front at the confluence and migrated into the interior of the basin. One deep (2500 m) lens of Canadian Basin water, with an anticyclonic eddy signature, must have spilled through a gap of the Lomonosov Ridge. During ACSYS 96, no clear fronts between Eurasian and Canadian intermediate waters, such as those observed further north in 1991 and 1994, were found at the Siberian side of the Lomonosov Ridge. This indicates that the Eurasian Basin waters enter the Canadian Basin not only along the continental slope but they may also cross the Lomonosov Ridge at other topographic irregularities. A decrease in salinity around 1000 m in depth in the Amundsen Basin probably originates from a larger input of fresh water to the Barents Sea. The inherent density changes may affect the flow towards the Canadian Basin.

Key words. Oceanography: general (Artic and Antartic oceanography; descriptive and regional oceanography) Oceanography: physical (hydrography)


Summary
Confluence and redistribution of Atlantic water in the Nansen, Amundsen and Makarov basins

 

Click To View

Additional Books


  • Characteristics of Merging at the Magnet... (by )
  • Assessment of Ionospheric Joule Heating ... (by )
  • Real-time 3-d Hybrid Simulation of Titan... (by )
  • The 8-h Tide in the Mesosphere and Lower... (by )
  • The Hia Instrument on Board the Tan Ce 1... (by )
  • Application of Stochastic Inversion in A... (by )
  • Determination of Daily Solar Ultraviolet... (by )
  • On the Assimilation of Total-ozone Satel... (by )
  • Turbulent Diffusivity in the Free Atmosp... (by )
  • Interhemispheric Observations of Nightsi... (by )
  • Climatology of the Inter-hemispheric Fie... (by )
  • F2-layer Parameters Long-term Trends at ... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.