HOME >> BIOLOGY >> NEWS
1 of deep ocean's most turbulent areas has big impact on climate

St. Laurent compared the flow of seawater through underwater gullies in the Mid-Atlantic Ridge to the wind, so familiar to hikers, that blows through mountain passages on land.

That wind creates a condition known as turbulence, which can blow the hat from your head, St. Laurent said. In the ocean, turbulence is produced when water flows quickly though oceanic passages. The turbulence stirs the almost freezing-water near the bottom with warmer water that is closer to the surface much as you would mix cream into coffee by stirring it with a spoon.

We know that the mixing of warm surface water with very cold deep water is one of several factors that influence the Earth's climate, he said. The mixing we observed and measured for our study allows the warmth at the surface of the ocean to diffuse deep into the sea. The overall balance between warm and cold water in the Atlantic helps control the strength of the Gulf Stream, which moves heat away from the Earths equator toward regions that receive much less heating from the suns rays.

St. Laurents co-principal investigator and co-author was Andreas M. Thurnherr, a former postdoctoral researcher in the FSU oceanography department and now a scientist at Columbia University. The field study took place in August 2006 during a three-week expedition aboard a French research vessel to a location close to the Azores, volcanic islands 2,000 miles east of the U.S. and west of Europe that comprise an above-sea portion of the mostly submerged Mid-Atlantic Ridge.

To measure the energy generated by the extraordinarily intense turbulence more than a mile below the oceans surface, St. Laurent and crew used a custom-made instrument called the "turbulence profiler," outfitted with special sensors.

The turbulence profiler measured the output using watts, the same unit of measurement as printed on light bulbs, St. Laurent said. In the undersea mountain passage where we intentionally
'"/>

Contact: Louis St. Laurent
stlaurent@ocean.fsu.edu
850-644-0846
Florida State University
9-Aug-2007


Page: 1 2 3

Related biology news :

1. Scientists uncover link between oceans chemical processes and microscopic floating plants
2. Extinction in oceans mud presages key ecological changes
3. Human knowledge is based upon directed connectivity between brain areas
4. Prenatal alcohol exposure alters brain activity in the frontal-striatal areas
5. Citrus greening continues to spread in citrus growing areas
6. Invisible gases form most organic haze in urban, rural areas
7. A changing climate for protected areas
8. Study verifies more hazardous waste facilities located in minority areas
9. Women in polluted areas at higher risk of cardiovascular disease
10. Republic of Congo announces two massive protected areas
11. Forest fires a real concern for areas hit hard by hurricanes

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/11/2019)... ... June 12, 2019 , ... With a rapidly growing ... leverage the Geneious Biologics platform as a premium hub for bioinformatics and computer ... says: “The Geneious team has done an excellent job accommodating our specific data, ...
(Date:6/6/2019)... ... June 05, 2019 , ... MedTech Breakthrough ... global health and medical technology market, announced that it has selected Medacta International’s ... Solution” award in the 2019 MedTech Breakthrough Awards program. , Medacta® ...
(Date:6/6/2019)... ... June 05, 2019 , ... ... the exclusive financial advisor to Pathologists Bio-Medical Laboratories (PBM) on its recent acquisition ... anatomic pathology platform that provides services to more than one dozen hospitals and ...
Breaking Biology News(10 mins):
(Date:6/11/2019)... ... June 11, 2019 , ... A study released today in ... are able to incorporate into human CD34+ cells, modifying their gene expression and ... increased the cells’ ability to lodge into bone marrow. This research performed by ...
(Date:5/31/2019)... ... 30, 2019 , ... World Compliance Seminars today announced a ... in Boston, MA. This peer recommended interactive workshop is always selected by professionals ... kick off with a compendial treatment of Data Integrity fundamentals. After laying the ...
(Date:5/21/2019)... ... May 21, 2019 , ... DuPont Nutrition & ... the inaugural Africa Brewing Conference dedicated to sharing brewing knowledge, strengthening relationships and ... which is supported through a partnership with “Ethiopia Invest”, will run through May ...
(Date:5/14/2019)... (PRWEB) , ... May 14, 2019 , ... Gateway ... expansion, effectively doubling its space from 2,500 to 5,000 square feet. , “This ... Gender DNA tests ,” says Gateway Genomics CEO, Chris Jacob. “The SneakPeek At-Home test, ...
Breaking Biology Technology:
Cached News: