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:2/26/2017)... ... February 26, 2017 , ... ODH, Inc.™ announced today it will ... the Sheraton Pentagon City Hotel in Arlington, VA. ODH’s director of medical strategy, Candace ... analytics to improve Medicaid population health management. , ODH will also have an exhibit ...
(Date:2/24/2017)... , ... February 24, 2017 , ... ... on tooth replacement options at his office, Antoine Dental Center. Currently, patients can ... $18,499. Some restrictions may apply, but patients can learn more about these offers ...
(Date:2/24/2017)... ... ... Smart Machine Age is here, and it’s disrupting everything. Not only could it drive ... United States may be taken over by technology in the next five to fifteen ... colleagues is drawing to a close. Success will belong to those who can quiet ...
(Date:2/24/2017)... ... February 24, 2017 , ... With ProGlass Prism users ... X . Users have total control over position, rotation, distortion, edge softness, edge blur, ... Final Cut Pro X. , With ProGlass Prism users are given the tools ...
(Date:2/24/2017)... ... February 24, 2017 , ... The Radiology Business Management Association will ... at the annual Building Better Radiology Marketing Programs conference, held this year ... Worth, Texas. Nine awards are given out in five categories. They are:, ...
Breaking Medicine News(10 mins):
(Date:2/24/2017)... , Feb 24, 2017 Research and Markets has ... Strategies - 2016" report to their offering. ... The latest research Dry eye Drugs Price Analysis ... global Dry eye market. The research answers the following questions: ... eye and their clinical attributes? How are they positioned in the Global ...
(Date:2/24/2017)... Md. , Feb. 23, 2017 ... marketing of the PhenoTest BC Kit, performed on ... to identify organisms that cause bloodstream infections and ... likely to respond to (antibiotic sensitivity). The test ... to provide this important information, which can guide ...
(Date:2/24/2017)... , Feb. 23, 2017  This report analyzes ... by the following Products: Intermediates, Analytical, ... the report include Pharmaceuticals, and Agrochemicals. The report provides ... , Europe , and Rest ... the period 2015 through 2022. Also, a six-year historic ...
Breaking Medicine Technology: