Featured Research

from universities, journals, and other organizations

Narrow Wind Causes Huge Ocean Impact, Says University Of Toronto Physicist

Date:
August 1, 2003
Source:
University Of Toronto
Summary:
A narrow but intense wind may be the mechanism responsible for the existence of a newly discovered ocean convection site east of Greenland, says a University of Toronto scientist.

A narrow but intense wind may be the mechanism responsible for the existence of a newly discovered ocean convection site east of Greenland, says a University of Toronto scientist.

Related Articles


In earlier research, oceanographers discovered that deep water in the Irminger Sea (east of Greenland) was of similar temperature and salinity to that in the Labrador Sea. The latter is one of only two areas where deep ocean water is traditionally thought to form in the North Atlantic through convection (a process whereby surface water loses heat and moisture, becomes dense, sinks to the bottom and flows towards the equator).

Given the distance involved between the Labrador and Irminger Seas and the time frame studied, the oceanographers knew the water could not have flowed from one site to the other. They asked Professor Kent Moore of U of T's physics department for an explanation. He believes the Irminger Sea has its own convection process triggered by an intense atmospheric jet of very strong winds called the Greenland tip jet. With wind speeds that reach 30 metres per second, the tip jet cools the surface water and makes it more saline, thereby prompting the convection cycle.

"The interesting thing is not just that we have increased the number of convection sites in the North Atlantic from two to three, which is contrary to previous oceanographic understanding," Moore says. "It is also that these very small tip jets in the atmosphere - only about 100 kilometres wide - can have such a huge impact on the entire ocean, which in turn regulates the Atlantic climatic system."

The research findings are published in the article Deep Convection in the Irminger Sea Forced by the Greenland Tip Jet in the July 10 issue of Nature. Funding support was supplied by the National Science Foundation, Ocean Sciences Division.


Story Source:

The above story is based on materials provided by University Of Toronto. Note: Materials may be edited for content and length.


Cite This Page:

University Of Toronto. "Narrow Wind Causes Huge Ocean Impact, Says University Of Toronto Physicist." ScienceDaily. ScienceDaily, 1 August 2003. <www.sciencedaily.com/releases/2003/08/030801082034.htm>.
University Of Toronto. (2003, August 1). Narrow Wind Causes Huge Ocean Impact, Says University Of Toronto Physicist. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2003/08/030801082034.htm
University Of Toronto. "Narrow Wind Causes Huge Ocean Impact, Says University Of Toronto Physicist." ScienceDaily. www.sciencedaily.com/releases/2003/08/030801082034.htm (accessed October 25, 2014).

Share This



More Earth & Climate News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

EU Gets Climate Deal, UK PM Gets Knock

EU Gets Climate Deal, UK PM Gets Knock

Reuters - Business Video Online (Oct. 24, 2014) EU leaders achieve a show of unity by striking a compromise deal on carbon emissions. But David Cameron's bid to push back EU budget contributions gets a slap in the face as the European Commission demands an extra 2bn euros. David Pollard reports. Video provided by Reuters
Powered by NewsLook.com
Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Raw: Tornado Rips Roofs in Washington State

Raw: Tornado Rips Roofs in Washington State

AP (Oct. 24, 2014) A rare tornado ripped roofs off buildings, uprooted trees and shattered windows Thursday afternoon in the southwest Washington city of Longview, but there were no reports of injuries. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Fast-Moving Lava Headed For Town On Hawaii's Big Island

Fast-Moving Lava Headed For Town On Hawaii's Big Island

Newsy (Oct. 24, 2014) Lava from the Kilauea volcano on Hawaii's Big Island has accelerated as it travels toward a town called Pahoa. 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