Powerboat-World.com
 
 
News Home Video Gallery Newsletters Features FishingBoating Photo Gallery Sail-World Australia Australian Cruising
MarineBusiness-World

 

Sail-World.com : Southern Ocean resistant to changing winds

Southern Ocean resistant to changing winds

'Dr Steve Rintoul, Oceanographer and climate scientist, with ARGO floats CSIRO Hobart. Photo by Bruce Miller'    © Copyright CSIRO Australia    Click Here to view large photo

Intensifying winds in the Southern Ocean have had little influence on the strength of the Southern Ocean circulation and therefore its ability to absorb carbon dioxide from the atmosphere, according to a study published on November 23rd 2008 in Nature Geoscience.

The Southern Ocean slows the rate of greenhouse warming by removing carbon dioxide from the atmosphere and storing it in the ocean. But previous studies raised the alarm by suggesting the Southern Ocean carbon sink is now ’saturated‘ and no longer able to keep pace with increasing concentrations of carbon dioxide in the atmosphere.

The new study suggests that Southern Ocean currents, and therefore the Southern Ocean’s ability to soak up carbon dioxide, have not changed in recent decades, despite a large increase in winds.

A team of German and Australian scientists compared new ocean measurements from a global network of ocean robots with historical data from ships to determine if the Southern Ocean was changing. The study was led by Professor Claus Böning from the Institute of Marine Research (IFM-GEOMAR), Kiel.

Co-author, CSIRO’s Dr Steve Rintoul, says the Southern Ocean was found to have become warmer and fresher since the 1960s – a pattern consistent with the ‘fingerprint’ of climate change caused by carbon emissions from human activity.

'But, counter to our expectations, other aspects of the Southern Ocean have not changed despite the increase in winds,' he says. 'In particular, we found no evidence of a change in strength of the ocean currents that circle around Antarctica, or in the amount of deep water rising to the surface near Antarctica.'

'The Southern Ocean was found to have become warmer and fresher since the 1960s – a pattern consistent with the ‘fingerprint’ of climate change caused by carbon emissions from human activity' says Co-author, CSIRO’s Dr Steve Rintoul.

The fact that the upwelling of deep water has not changed is important. Deep water is very rich in carbon dioxide and so an increase in upwelling tends to transfer carbon dioxide from the ocean to the atmosphere. The low-resolution models used for climate forecasts predict stronger winds, which cause stronger upwelling and therefore less carbon dioxide being stored in the ocean.


'Our results suggest that the small-scale motions of ocean eddies act to balance the stronger winds, with no change in upwelling,' Dr Rintoul says. 'Climate models in use today cannot represent these small-scale motions and so over-estimate the response of the Southern Ocean to changes in winds.' Dr Rintoul works through the Antarctic Climate and Ecosystem Cooperative Research Centre (ACECRC) and CSIRO’s Wealth from Oceans Flagship.

Integral to the research was the Australian ocean data archive and the Argo network of ocean profilers. The data provided by the global array of more than 3,100 Argo floats is particularly valuable in remote areas like the sparsely-sampled Southern Ocean.

The research team included Professor Martin Visbeck, Astrid Dispert and Franziska Schwarzkopf from the Institute of Marine Research (IFM-GEOMAR), Kiel.

The research was initiated in Australia with funding from the Department of Climate Change, CSIRO and an Ernst Frohlich Fellowship.

The Centre for Australian Weather and Climate Research (CAWCR) click here

The Centre for Australian Weather and Climate Research is a partnership between CSIRO and the Bureau of Meteorology.



http://www.csiro.au/




by CSIRO

  

Click on the FB Like link to post this story to your FB wall

http://www.powerboat-world.com/index.cfm?nid=52187

11:40 AM Wed 24 Dec 2008 GMT






Click here for printer friendly version
Click here to send us feedback or comments about this story.

Click for further information on
Environment and the ocean

Related News Stories:

27 Nov 2013  World Oceans Day appeals for funds
16 Nov 2013  Gigantic iceberg sails north from the Antarctic
09 Nov 2013  Sailing and swimming with manatees - Oceans Watch Essay
01 Nov 2013  OceansWatch: cruising sailors give something back in the South Pacific
23 Oct 2013  'The Ocean is Broken' - without fish, there can be no birds
13 Oct 2013  PlanetSolar reaches Paris after successful ocean study
02 Oct 2013  Monaco Yacht Show goes Green
07 Sep 2013  Great Pacific Garbage Patch - the real story
03 Sep 2013  World's largest solar yacht drops anchor after marine science quest
25 Aug 2013  Boat owners: cover vessels to deter seagulls
MORE STORIES ...

Power Boat News

Win $5000 Cash to Splash with Club Marine by Club Marine, Brighton, Victoria
For boat owners, what better way to start the coming boating season than with an extra $5000 cash to splash this summer. The possibilities are endless, from lashing out on new fishing gear, to overhauling the sails, upgrading the outboard or maybe a boatload of new water toys the whole family can enjoy. ... [more]  

UIM Skydive Dubai XCAT: The 2014 season will be brought to a close with the Emirates Airline XCAT GP, taking place from December 11-13. The Fazza duo of Arif Al Zaffain and Nadir Bin Hendi have already secured top honours in the Series – their third consecutive XCAT title – after making a clinical clean sweep of the titles on offer throughout the year, but there will be pride to race. ... [more]  

When it was presented at the Fort Lauderdale International Boat Show, the Monte Carlo Yachts 86 was one of the contenders for the Editors’ Choice Awards, winning in the 80-89 feet Best Motor Yacht category. ... [more]  

This summer children are invited to release their inner aquanaut and explore the mysteries of the deep in an exciting new adventure land opening at the National Maritime Museum, Darling Harbour – Voyage to the Deep: Underwater Adventures. ... [more]  

The new application from PredictWind for Mac and PC is revolutionary for accessing weather data when offshore. Accessing GRIB files, Weather Routing, GMDSS forecasts and Satellite Imagery is now a simple task with the unique and user friendly interface. ... [more]  

As an investment in a FLIR camera is not inexpensive or even one that can be taken quickly due to having to carefully think through the installation process, we thought long and hard about the perceived benefits of the system. At the end of the day we decided to go ahead with the FLIR camera and also decided, that we would pair the FLIR thermal camera with the new Furuno TZ9. ... [more]  

Marine Rescue Middle Harbour Unit Commander Peter Nott said thieves had stolen the motor from a 3.9m aluminium runabout that is the centrepiece of the unit’s annual raffle, damaging the boat in the process. The raffle prize is a Quintrex 390 Explorer runabout fitted with a 9.9hp Mercury 4-stroke outboard on a registered Quintrex trailer, worth almost $9,000. ... [more]  

Results in from ‘Operation Go Easy on the Alcohol’ by Transport Roads and Maritime Services
More than 1211 vessel safety checks and 127 random breath tests were carried out during Operation Go Easy on the Alcohol with one person charged with operating a vessel with a low range prescribed concentration of alcohol (PCA) and 30 fines for lifejacket breaches. ... [more]  

It was a very happy birthday for Perton driving ace Kamila Czartolomna as she was presented with the brand new powerboat for South Staffordshire Sailing Club that she won by claiming the national Honda RYA Youth RIB Championship title on Sunday (23 November). ... [more]  

Some dogs were born for the water, others less so. The key to boating with dogs, says Boat Owners Association of The United States (BoatUS), is taking it slow and making safety number one. ... [more]  

Yamaha's 2014 Oceania Marine Technician Grand Prix has been run and won. The Yamaha technician GP is a training and skills contest where the best technicians from all over Australia and New Zealand come to compete. Competitors are put through a series of challenges to test their knowledge and skill in a simulated workshop environment. ... [more]  

2014 Barrie Beehag Ski Race - Hellrazor has taken out line honours in the 2014 Barrie Beehag ski race, with skiers Jason Walmsley and Peter Procter skiing in a time of 21:45.01. This win gives the Hellrazor boat crew of Mark Cranny and Damien Matthews their eighth outright Barrie Beehag win. ... [more]  

An auction is set to be held at Runaway Bay Marina, Gold Coast, on Saturday 22nd November. Telephone bidding is available by contacting, Jo on 0407 213 557, or email, jo@marineauctions.com.au. ... [more]  

Garmin, the global leader in satellite navigation, has announced its next generation of open-array digital radars – the GMR™ 424, 624/626 and 1224/1226 xHD2. Continuing to set the standard for open-array radars, the xHD2 series offers brand new features and capabilities that provide better precision, targeting and performance while transmitting power at four, six and 12 kilowatts respectively. ... [more]  

Garmin Ltd has announced a new line of scanning transducers designed to accommodate any calibre of mariner, from the casual cruiser to the professional angler. Supporting both the newest lines of Garmin echoMAP and GPSMAP chartplotters and multifunction displays (MFD), this full array of thru-hull and transom-mounted transducers are a valuable addition to any vessel. ... [more]  

The Maritime Management Centre and Sailability NSW have announced a partnership to promote lifejacket awareness. The Centre has presented Sailability NSW with 50 new generation lifejackets so their volunteers can act as ambassadors by wearing them and role modelling behaviour to further encourage everyone on the water to wear lifejackets. ... [more]  

Arvor reveals new diesel range by Arvor Boats Australia
Boat building should be both creative and technical and Arvor has always sought to push back its boundaries. This is what inspired its creators in the first place. And this is what leads us to the future. This summer Arvor Boats are delighted to announce the launch of two new models to the hugely popular and ever growing Arvor range – the 690 D and 730 D. ... [more]  

Garmin, the global leader in satellite navigation, has announced the GSD 25, a premium sonar module that offers traditional sonar, 1kW CHIRP, CHIRP DownVü and CHIRP SideVü scanning sonar for a versatile, all-in-one black box. The GSD 25 is the ultimate solution for the boater or angler that requires both scanning capabilities and traditional sonar. ... [more]  

Australian luxury cruiser manufacturer Maritimo has recorded one of its most successful Fort Lauderdale International Boat Shows ever with multiple sales of its M58 and M50 cruising motoryachts. Maritimo Sales and Marketing Manager Greg Haines said the atmosphere and positivity at the recent show was the best it had been in many years. ... [more]  

Ferretti Group has announced the opening of its first Flagship Showroom in Shanghai, located in the prestigious Mandarin Oriental Hotel in Pudong. The new Showroom sits on the bank of Huangpu River, in a beautiful location inside Mandarin Oriental Hotel. ... [more]  

Yamaha Motor Australia announces the end of the legendary V4 Saltwater Series 115C and 130B outboard motors in Australia. These trusted outboards have been powering Australian boaters for almost three decades and are well recognised for their performance and have an enviable reputation for reliability and durability forged in one of the harshest saltwater markets in the world. ... [more]  

Mark Hoult admits that winning a Sirocco tender at this year’s Gold Coast International Marine Expo could not have come at a better time. 'I’m just about to put my 22-foot Steber cruiser on the water for this summer after a year of getting it ready … and I was definitely in the market for a tender,' he said. ... [more]  

The Maritime Management Centre of Transport for NSW is carrying out a review of boat driver licensing in NSW and is seeking your comments. Please also circulate this to your network. The review considers when a licence is required, the classification and duration of licences, the process for obtaining a licence and licence fees ... [more]  

Singapore yacht associations to merge by Don Hoyt Gorman, Superyacht News
Singapore’s two industry yachting and marine associations have agreed to merge and relaunch in time for the Singapore Yacht Show in April 2015, the directors have confirmed. The Singapore Boating Industry Association, which was incorporated in February 2011 as the lead association for Singapore’s recreational boating industry, and the Superyacht Singapore Association, which was formed in 2007 ... [more]  

The 34th Super Boat International (SBI) Key West World Championships produced some of the most exciting racing seen in nearly a decade with the widest range of conditions and excitement. Miss GEICO won the Superboat Unlimited battle and took first overall during some high-flying action on this past Sunday. ... [more]  

Changed boating conditions for power boat races on Lake Albert by Transport Roads and Maritime Services
Boaters are reminded to keep clear of Lake Albert at Wagga Wagga this weekend for the safe staging of power boat races. Roads and Maritime Services has granted an exclusive use aquatic licence to Australian Formula Powerboat Grand to host the event between 7am and 6pm on Saturday and Sunday. ... [more]  

If you love water skiing, this is an event you cannot miss! The brand new Ted Hurley Memorial Classic, a joint initiative of Mildura Ski Club and Ski Racing Victoria is set to kick off in Wentworth on Saturday, 29 November 2014. The race, in honour of Australian water skiing champion and legend Ted Hurley, will take place in two rivers – starting in the Darling River at Wentworth passing though th ... [more]  

Brisbane surgeon Micheal Mastry is a recreational boater who appreciates the very finest in life. Not only does he own a stunning 43’ Nor-Tech Monte Carlo, but the twin Yanmar 8LV powered sports boat is the first in Australia to be fitted with the new Yanmar Joystick Control System. ... [more]  

With attractive marinas and a favourable exchange rate, Malaysia is fast becoming a preferred destination to Singapore for yachting enthusiasts. State Tourism Department director Dr Badrul Hisham Kassim said the yacht tourism which has been privately run thus far, contributed RM529 million to the economy from 2004 to 2014. ... [more]  

Indonesian Govt eases yacht permits to boost ‘marine tourism’ by Nadya Natahadibrata/Grace D. Amian, Jakarta Post
In recognition of the potential of the country’s marine sector to become a key driver of the economy and to create jobs, the new Indonesian government is preparing measures to develop the cruise and yacht tourism industries as part of an effort to double the number of foreign visitors entering the country within five years. ... [more]  

Tahitian ‘Art of Dancing’ & Superyachts by Asia Pacific Superyachts
Superyacht visitors to Tahiti will find there is much to learn and enjoy about the ‘Maohi’ people and the culture of French Polynesia, reports longtime resident Etienne Boutin, heading up Asia Pacific Superyachts Tahiti. ... [more]  

Gamma Yachts has announced the delivery of 22.1m M/Y Libertas, the third in its Gamma 20 ‘mini’ superyacht series to be completed to date. With innovative design by Dutch company Vripack, the yacht has impressive guest space for its length overall as well as excellent fuel efficiency. The owner of M/Y Libertas, is the celebrated opera singer Andrea Bocelli. ... [more]  

From the 10th-12th of October at the Mandurah Boat Show, Boab Boats, with major sponsors Honda Marine and RIB Rescue, conducted the first junior power boat challenge within Australia. This was our first step in developing the challenge into a championship and into eventually a national series. ... [more]  

2014 Goodwill Cup - Southport Yacht Club wins
North Shannon win ISA National Powerboat Championship
New Rayglass ProJet on duty at Auckland Airport
2014 Goodwill Cup - Southport Yacht Club wins
RYA Suzuki Dinghy Show - Safety boat competition passes half way point
Victorian Government promises $65 million Better Bay Plan
Xiamen Boat Show 2014 at Wuyuan Bay, Xiamen, rolls out 7-10 November.
4th Macau Yacht Show on the horizon, Macau, 7-9 November 2014
Fairline to unveil 8 new models in 3 years
Communications upgrade vital to Sydney boaters’ safety
Genoa International Boat Show 2014 ‘in recovery’
Sanctuary Cove Boat Show - Marine industry invited to jump on board
Eagle One luxury motoryacht – seeking new owner
Ten crucial actions to save the Great Barrier Reef
Henri Lloyd's famous summer sample sale on now
Fort Lauderdale International Boat Show - Australia among the best
sMRT Inflatable SOS Dan Buoy selected by judges for METS Dame Awards
Superior for all seasons
Arrested development – sediment wreaks havoc with fish larvae
Tauranga Boat Expo - Lancer and Sea Blade attend for the first time
Safer Boating Week: New Auckland Council Navigation come into effect   
NMMA loses E15 fuel U.S. Court of Appeals Decision   
Explore Australia Expo and Brisbane Tinnie and Tackle Show join forces   
METS names DAME Award nominees   
Barcelona International Boat Show reflects signs of recovery in sector   
Still time to win an Advanced Powerboat Course with RYA Handbook   
New improved swell forecasting and more locations from PredictWind   
A Sailor's Dream Home: View after the Coastal Classic - Auction 22 Nov   
Brisbane Tinnie and Tackle Show moving to Manly Harbour in 2015   
Partnership to encourage lifejacket use   
2014 Gold Coast International Marine Expo: Another outstanding success   
Southport’s seas are safer with new Mercury FourStroke Verados   
2014 Gold Coast International Marine Expo - Marine Syndication wins   
UIM Class 1 Grand Prix of Italy - Wins for Fendi Racing and Aquasport   
Coast Guard rescues two near Wachapreague   
Scotland’s Boat Show - More than 13,000 flock to Kip Marina   
Grand Prix of Italy: Victory and Bernico-New Star claim race 1 honours   
2014 Gold Coast Int'l Marine Expo - McDonald’s boosts the family fun   
Yacht CN 2014 —3rd Nansha Bay International Boat Show open   
Dutch boy on a mission to rid the world's oceans of floating plastic *Feature   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png   http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
XLXL WAS PBW
LocalAds   DE  ES  FR  IT