Navigation Links
Fluctuations in Ocean Salinity Could Forewarn of Climate Change

Significant increase or decrease in ocean salinity could forewarn of climate change in 10 to 20 years time, researchers say.

The results, presented at a recent European Science Foundation (ESF) conference states that a build up of salty water stimulates deep-water circulation, while a diluting of the waters results in sluggish flow.

Salt plays a far more important role that we first thought, said Prof. Rainer Zahn, a palaeoclimatologist at the Autonomous University of Barcelona in Spain.

Salt increases the density of water. Once a pocket of water becomes salty enough, it sinks, drawing in additional water from surrounding areas, and initiating an ocean circulation loop called thermohaline overturning.

Using a combination of modern observations, numerical models and palaeoclimate data, scientists have now discovered that a build up of salt in the waters off the coast of South Africa could help speed up ocean circulation in the North Atlantic, despite the two areas being thousands of kilometres apart.

A salt surge is enough to kick start circulation. Meanwhile, a decrease in saltiness in South African waters could be linked to a slowing down of the North Atlantic circulation, said Prof. Zahn.

Prof. Zahn said though models and data both indicate that these changes in ocean circulation over on a very short time-scale, usually in less than a decade or two (It takes nearly a century for a parcel of water to move from the South Atlantic to the North Atlantic), the energy is transferred through the ocean along a deep pressure wave.

The surge of salt generates a pressure gradient in the ocean that sends energy to the north without water actually being transported, said Prof. Zahn.

Currently there is no large-scale salt monitoring system in place in the southern hemisphere oceans. Regular measurements taken in the waters around South Africa and New Zealand could be useful. It could act as an early warning system for climate changes 10-20 years down the road, he said.

The work was presented at the Ocean Controls in Abrupt Climate Change conference, held at the University of Innsbruck Conference Centre in Obergurgl, tz Valley, Austria, May 19-24, 2007.


'"/>




Related medicine news :

1. In Search Of Drugs From the Ocean
2. Oceans May Turn More Acidic and Threaten Marine Life
3. Health Benefits from the Ocean Snail
4. Plastic May Be Poisoning Oceans: Scientists
5. New Study Links Western Wildfires to Atlantic Ocean Surface Temperatures
6. Protecting Oceans is Important to Keeping Planet Cool
7. Saving Powers Of The Ocean On The Wane
8. Southern Oceans Ability to Absorb CO2 Has Reached a Saturation Point: Study
9. Climate Change Signal Detected in the Indian Ocean
10. Global Warming Spurring Ocean Waves Speed
11. Lean Protein Could Be Key to Obesity Drugs
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/26/2016)... ... June 27, 2016 , ... Quality metrics are proliferating in cancer care, and ... in the eye of the beholder, according to experts who offered insights and commentary ... of Managed Care. For the full issue, click here . , For the ...
(Date:6/26/2016)... Birmingham, Lake Orion, Clarkston, Michigan (PRWEB) , ... ... ... their direction with respect to fertility once they have been diagnosed with endometriosis. ... for tolerable intercourse but they also require a comprehensive approach that can help ...
(Date:6/25/2016)... , ... June 25, 2016 , ... First Choice ... States, named Dr. Sesan Ogunleye, as the Medical Director of its new Mesquite-Samuell Farm ... Medical Director of our new Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical ...
(Date:6/24/2016)... Los Angeles, CA (PRWEB) , ... June 24, 2016 , ... ... plastic surgery procedures that most people are unfamiliar with. The article goes on to ... known procedures, but also many of these less common operations such as calf and ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg Traurig, P.A. ... The attorneys chosen by their peers for this recognition are considered among the top ... Shareholders received special honors as members of this year’s Legal Elite Hall of Fame: ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... June 23, 2016 Capricor ... ), a biotechnology company focused on the discovery, ... that patient enrollment in its ongoing randomized HOPE-Duchenne ... exceeded 50% of its 24-patient target. Capricor expects ... third quarter of 2016, and to report top ...
(Date:6/23/2016)... -- , , , WHEN: , ... , , , LOCATION: , , , Online, with free ... EXPERT PANELISTS:  , , , Frost & Sullivan,s Global Vice President ... Industry Analyst, Divyaa Ravishankar and Unmesh Lal, Program Manager , ... is witnessing an exceptional era. Several new demand spaces, such as ...
(Date:6/23/2016)... June 23, 2016 Revolutionary technology ... Oticon , industry leaders in advanced audiology and ... Oticon Opn ™, the world,s first internet connected ... for IoT devices.      (Photo: http://photos.prnewswire.com/prnh/20160622/382240 ... a number of ,world firsts,: , TwinLink™ ...
Breaking Medicine Technology: