Navigation Links
Giant ocean eddy shadows Sydney
Date:3/25/2008

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grew larger but, because it remained offshore, less The giant ocean eddy that cooled Sydneys shores a year ago has been superseded by another 300 km diameter giant.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
david.griffin@csiro.au
61-362-325-244
CSIRO Australia
Source:Eurekalert

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:
*Name:
*Comment:
*Email:
(Date:12/19/2016)... , 19 de diciembre de 2016  Mosaic Biomedicals SL ... desarrollo acelerado de MSC-1, un anticuerpo humanizado que se espera comenzar ... 2017, con múltiples sitios previstos a lo largo de Europa y ... MSC-1 es ... inhibidor de leucemia (LIF), una citoquina pleiotrópica que se sobreexpresa en ...
(Date:12/16/2016)... NEW YORK , Dec. 16, 2016 The global ... reach USD 12.14 billion by 2021 from USD 5.31 billion in ... ... market is mainly driven by technological advancements in medical devices, launch ... devices, rising preference for wireless connectivity among healthcare providers, and increasing ...
(Date:12/15/2016)... ... announced the addition of the "Global Military Biometrics Market 2016-2020" ... military biometrics market to grow at a CAGR of 7.5% during the ... an in-depth market analysis with inputs from industry experts. The report covers ... report also includes a discussion of the key vendors operating in this ...
Breaking Biology News(10 mins):
(Date:1/18/2017)... 2017   Parent Project Muscular Dystrophy (PPMD) , ... Duchenne muscular dystrophy (Duchenne) , today announced a $600,000 ... of Technology (NJIT) and Talem Technologies (Talem) as part ... to assist people living with Duchenne. PPMD is ... an embedded computer, software, a force sensor and a ...
(Date:1/18/2017)... ... January 18, 2017 , ... ... Dante Leven successfully implanted SpineFrontier’s A-CIFT™ Solofuse-P™. The operation took place on Wednesday, ... Stream, NY. The procedure was an anterior cervical discectomy and fusion on a ...
(Date:1/18/2017)... Frederick, Maryland (PRWEB) , ... January 18, 2017 ... ... of two new federally funded bio-focused Manufacturing Innovation Institutes (MII). U.S. Secretary of ... Innovation in Manufacturing Biopharmaceuticals (NIIMBL), and the Department of Defense has announced the ...
(Date:1/18/2017)... ... , ... Researchers from a new study are stating that if levels of the ... treatment, this indicates there is still remaining prostate cancer cells that are more likely to ... has always been an indicator of whether a man’s prostate cancer is growing or ...
Breaking Biology Technology: