Oceans and seas:Arctic Frontal Zone
Published: March 29, 2010, 12:00 am
Updated: November 16, 2011, 11:21 am
This article has been reviewed by the following Topic Editor:
C Michael Hogan
The Arctic Frontal Zone (AFZ) is a frontal zone that runs meridionally between about 5 and 8oE in the Greenland Sea. It separates warm, salty, northward-flowing Norwegian Atlantic Water (NwAtW) in the Norwegian Atlantic Current and the West Spitsbergen Current to the east from the cooler and fresher Arctic Surface Water (ASW) in the Greenland Sea gyre to the west.
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This article is written at a definitional level only. Authors wishing to expand this entry are inivited to expand the present treatment, which additions will be peer reviewed prior to publication of any expansion. |
The AFZ consists of two semipermanent frontal interfaces with warm, saline Norwegian Atlantic Water to the east and Arctic Water from the Greenland Sea gyre to the west. These two interfaces bound a band of shallow cyclonic cold eddies and anticyclonic warm eddies with horizontal scales on the order of 40 to 50 kilometers, consistent with the local Rossby radius. Drifter trajectories show a mean surface velocity across the AFZ to the north, and the mean northward geostrophic transport (relative to 1000 dbar) connected with the zonal density gradient in the AFZ is about 3.8 Sverdups. The accompanying transports of heat and fresh water across the AFZ are thought to be of great importance for the control of deep convection processes in the Greenland Sea gyre.
See Also
Further Reading
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Physical Oceanography Index
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Hendrik M. van Aken, Gereon Budeus, and Michael Hahnel. The anatomy of the Arctic Frontal Zone in the Greenland Sea. J. Geophys. Res., 100:15999–16014, 1995.
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Citation
Steve Baum (Lead Author);C Michael Hogan (Topic Editor) "Arctic Frontal Zone". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth March 29, 2010; Last revised Date November 16, 2011; Retrieved May 26, 2013 <http://www.eoearth.org/article/Arctic_Frontal_Zone?topic=49523>
The Author
Assistant Research Scientist, Physical Section
Department of Oceanography
Texas A&M University ... (Full Bio)
The Arctic Frontal Zone (AFZ) is a frontal zone that runs meridionally between about 5 and 8oE in the Greenland Sea. It separates warm, salty, northward-flowing Norwegian Atlantic Water (NwAtW) in the Norwegian Atlantic Current and the West Spitsbergen Current to the east from the cooler and fresher Arctic Surface Water (ASW) in the Greenland Sea gyre to the west.
|
This article is written at a definitional level only. Authors wishing to expand this entry are inivited to expand the present treatment, which additions will be peer reviewed prior to publication of any expansion. |
The AFZ consists of two semipermanent frontal interfaces with warm, saline Norwegian Atlantic Water to the east and Arctic Water from the Greenland Sea gyre to the west. These two interfaces bound a band of shallow cyclonic cold eddies and anticyclonic warm eddies with horizontal scales on the order of 40 to 50 kilometers, consistent with the local Rossby radius. Drifter trajectories show a mean surface velocity across the AFZ to the north, and the mean northward geostrophic transport (relative to 1000 dbar) connected with the zonal density gradient in the AFZ is about 3.8 Sverdups. The accompanying transports of heat and fresh water across the AFZ are thought to be of great importance for the control of deep convection processes in the Greenland Sea gyre.
See Also
Further Reading
-
Physical Oceanography Index
-
Hendrik M. van Aken, Gereon Budeus, and Michael Hahnel. The anatomy of the Arctic Frontal Zone in the Greenland Sea. J. Geophys. Res., 100:15999–16014, 1995.
Are you absolutely sure you want to delete this article? This process cannot be undone and is permanent.
Yes, Delete This Article
Are you absolutely sure you want to remove this article? This process cannot be undone and is permanent.
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