Featured Research

from universities, journals, and other organizations

Antarctic Current Roils Deep Ocean Waters

Date:
June 6, 2008
Source:
American Geophysical Union
Summary:
The Antarctic Circumpolar Current, a prominent ocean current that flows around Antarctica, is an important component of global ocean circulation and climate. The current consists of a number of fronts. Observations indicate that turbulent mixing is enhanced in these fronts, penetrating through much of the water column.

The Antarctic Circumpolar Current (ACC), a prominent ocean current that flows around Antarctica, is an important component of global ocean circulation and climate.

Related Articles


The current consists of a number of fronts. Observations indicate that turbulent mixing is enhanced in these fronts, penetrating through much of the water column.

Noting that understanding the ACC is important to understanding regional and global ocean circulation, Saenko feeds a simple representation of mixing along the current's fronts into a global climate model to evaluate the mixing's potential impact on ocean's overturning circulation.

For example, in the northern Atlantic Ocean, cold, dense water (called North Atlantic Deep Water, or NADW) sinks, travels south, and upwells around the latitudes of the ACC. Saenko finds that frontally intensified mixing in the ACC increases the transformation of NADW into Upper Circumpolar Deep Water (UCDW), a water mass that is a mixture of deep waters from the world's oceans and that contributes to upwelling in the Southern Ocean.

Further, the frontally intensified dense water upwelling in the Southern Ocean diverts a fraction of Antarctic Bottom Water, which heads north from the ACC, back to the UCDW.


Story Source:

The above story is based on materials provided by American Geophysical Union. Note: Materials may be edited for content and length.


Journal Reference:

  1. Saenko et al. Influence of the enhanced mixing within the Southern Ocean fronts on the overturning circulation. Geophysical Research Letters, 2008; 35 (9): L09602 DOI: 10.1029/2008GL033565

Cite This Page:

American Geophysical Union. "Antarctic Current Roils Deep Ocean Waters." ScienceDaily. ScienceDaily, 6 June 2008. <www.sciencedaily.com/releases/2008/06/080604145854.htm>.
American Geophysical Union. (2008, June 6). Antarctic Current Roils Deep Ocean Waters. ScienceDaily. Retrieved March 30, 2015 from www.sciencedaily.com/releases/2008/06/080604145854.htm
American Geophysical Union. "Antarctic Current Roils Deep Ocean Waters." ScienceDaily. www.sciencedaily.com/releases/2008/06/080604145854.htm (accessed March 30, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Monday, March 30, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Arthropod Fossil Might Be Relative Of Spiders, Scorpions

New Arthropod Fossil Might Be Relative Of Spiders, Scorpions

Newsy (Mar. 29, 2015) — A 508-million-year-old arthropod that swam in the Cambrian seas is thought to share a common ancestor with spiders and scorpions. Video provided by Newsy
Powered by NewsLook.com
Vietnam Rice Boom Piles Pressure on Farmers and the Environment

Vietnam Rice Boom Piles Pressure on Farmers and the Environment

AFP (Mar. 29, 2015) — Vietnam&apos;s drive to become the world&apos;s leading rice exporter is pushing farmers in the fertile Mekong Delta to the brink, say experts, with mounting costs to the environment. Duration: 02:35 Video provided by AFP
Powered by NewsLook.com
Raw: New Eruptions at Colima Volcano in Mexico

Raw: New Eruptions at Colima Volcano in Mexico

AP (Mar. 28, 2015) — The Colima Volcano in western Mexico sent large columns of ash up into the air on Saturday. (March 28) Video provided by AP
Powered by NewsLook.com
Antarctic Ice Is Melting Faster Than Ever

Antarctic Ice Is Melting Faster Than Ever

Newsy (Mar. 27, 2015) — A new study of nearly two decades of satellite data shows Antarctic ice shelves are losing more mass faster every year. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins