Navigation Links
Giant ocean eddy shadows Sydney

CSIRO Wealth from Oceans National Research Flagship scientist, Dr David Griffin, says the birth of the eddy has been traced to last August.

From satellite maps of sea-level we can see that it had been loitering this side of Lord Howe Island for some time and began approaching the NSW coast near Christmas, Dr Griffin says.

It remained stationary during January and simply grew larger but, because it remained offshore, less The giant ocean eddy that cooled Sydneys shores a year ago has been superseded by another 300 km diameter giant. people would have noticed its impacts on water temperatures.

The cold water at the new eddys centre has welled up about 500m from the ocean depths.

In the southern hemisphere, a cold eddy has to rotate clockwise, Dr Griffin says. This one completes a full revolution every 10 days and the sea level at its centre is reduced by nearly 1m, which is how researchers can tell where the eddy is.

Four people who definitely noticed the eddy were the crew who rowed across the Tasman Sea from New Zealand in late December. Skirting its southern boundary, they received a homeward boost of 3km/h or more.

The eddy appears to be on the wane now and the question of interest for oceanographers is what have been the factors that influenced its development and led to its evolution into an ocean feature approaching the size of Tasmania, Dr Griffin says.

Instruments that detect the height of the worlds oceans are carried by satellites such as Jason-1 (Jet Propulsion Laboratory-NASA and the French Space Agency CNES) and the European Space Agencys Envisat. These are valuable aids to scientists developing ocean forecasting systems such as Australias BlueLINK.


Contact: Dr. David Griffin
CSIRO Australia

Page: 1

Related biology news :

1. Tiny buckyballs squeeze hydrogen like giant Jupiter
2. A fossilized giant rhino bone questions the isolation of Anatolia, 25 million years ago
3. Giant panda genome to be sequenced
4. Scientists discover giant fossil frog from hell
5. Scientists discover new species of giant elephant-shrew
6. Insects giant leap reconstructed by founder of sociobiology
7. Giant panda can survive
8. Nanominerals influence Earth systems from ocean to atmosphere to biosphere
9. From the backyard to the ocean: New study shows streams act as key nitrogen filters
10. Scientists show that streams are critical to preservation of oceanic coastal zones
11. Breath of the ocean links fish feeding, reefs, climate
Post Your Comments:
(Date:6/22/2016)... Md. , June 22, 2016  The American College ... Trade Show Executive Magazine as one of the ... on May 25-27 at the Bellagio in Las ... on the highest percentage of growth in each of the ... of exhibiting companies and number of attendees. The 2015 ACMG ...
(Date:6/22/2016)... WASHINGTON , June 22, 2016 On ... highly-anticipated call to industry to share solutions for the ... by U.S. Customs and Border Protection (CBP), explains that ... nationals are departing the United States ... criminals, and to defeat imposters. Logo - ...
(Date:6/20/2016)... June 20, 2016 Securus Technologies, a ... solutions for public safety, investigation, corrections and monitoring ... involved, it has secured the final acceptance by ... for Managed Access Systems (MAS) installed. Furthermore, Securus ... to be installed by October, 2016. MAS distinguishes ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... 27, 2016  Liquid Biotech USA ... of a Sponsored Research Agreement with The University ... (CTCs) from cancer patients.  The funding will be ... correlate with clinical outcomes in cancer patients undergoing ... then be employed to support the design of ...
(Date:6/24/2016)... ... , ... While the majority of commercial spectrophotometers and fluorometers use the z-dimension ... are higher end machines that use the more unconventional z-dimension of 20mm. Z-dimension ... bottom of the cuvette holder. , FireflySci has developed several Agilent flow cell ...
(Date:6/23/2016)... , June 23, 2016   Boston ... of novel compounds designed to target cancer stemness ... has been granted Orphan Drug Designation from the ... treatment of gastric cancer, including gastroesophageal junction (GEJ) ... inhibitor designed to inhibit cancer stemness pathways by ...
(Date:6/23/2016)... ... 2016 , ... Charm Sciences, Inc. is pleased to announce ... Research Institute approval 061601. , “This is another AOAC-RI approval of the Peel ... President of Regulatory and Industrial Affairs. “The Peel Plate methods perform comparably to ...
Breaking Biology Technology: