sail-world.com
 
 
News Home Cruising Photo Gallery Video Gallery
Sail-World.com : Change in salinity detected in the world’s oceans
Change in salinity detected in the world’s oceans

'Deploying an Argo float in the Tasman Sea'    © Copyright CSIRO Australia    Click Here to view large photo

In a paper published in the journal Science, Australian scientists from the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Lawrence Livermore National Laboratory, California, reported varying patterns of salinity in the global ocean during the past fifty years, marking a clear fingerprint of climate change.

Lead author, Dr. Paul Durack, said that by looking at observed ocean salinity changes and the relationship between salinity, rainfall and evaporation in climate models, they determined the water cycle has strengthened by four per cent from 1950-2000. This is twice the response projected by current generation global climate models.

'Salinity shifts in the ocean confirm climate and the global water cycle have changed.'

'These changes suggest that arid regions have become drier and high rainfall regions have become wetter in response to observed global warming,' said Dr Durack, a post-doctoral fellow at the Lawrence Livermore National Laboratory.

With a projected temperature rise of 3ºC by the end of the century, the researchers estimate a 24 per cent acceleration of the water cycle is possible.

Scientists have struggled to determine coherent estimates of water cycle changes from land-based data because surface observations of rainfall and evaporation are sparse. However, according to the team, global oceans provide a much clearer picture.

'The ocean matters to climate – it stores 97 per cent of the world’s water; receives 80 per cent of the all surface rainfall and; it has absorbed 90 per cent of the Earth's energy increase associated with past atmospheric warming,' said co-author, Dr Richard Matear of CSIRO's Wealth from Oceans Flagship.

'The ocean matters to climate – it stores 97 percent of the world’s water; receives 80 percent of the all surface rainfall and; it has absorbed 90 percent of the Earth's energy increase associated with past atmospheric warming'

Dr. Richard Matear: 'Warming of the Earth’s surface and lower atmosphere is expected to strengthen the water cycle largely driven by the ability of warmer air to hold and redistribute more moisture.'

He said the intensification is an enhancement in the patterns of exchange between evaporation and rainfall and with oceans accounting for 71 percent of the global surface area the change is clearly represented in ocean surface salinity patterns.

In the study, the scientists combined 50-year observed global surface salinity changes with changes from global climate models and found 'robust evidence of an intensified global water cycle at a rate of about eight per cent per degree of surface warming,' Dr. Durack said.

Dr. Durack said the patterns are not uniform, with regional variations agreeing with the 'rich get richer' mechanism, where wet regions get wetter and dry regions drier.

He said a change in freshwater availability in response to climate change poses a more significant risk to human societies and ecosystems than warming alone.

'Changes to the global water cycle and the corresponding redistribution of rainfall will affect food availability, stability, access and utilization,' Dr. Durack said.

Dr. Susan Wijffels, co-Chair of the global Argo project and a co-author on the study, said maintenance of the present fleet of around 3,500 profilers is critical to observing continuing changes to salinity in the upper oceans.

The work was funded through the Australian Climate Change Science Program, a joint initiative of the Department of Climate Change and Energy Efficiency, the Bureau of Meteorology and CSIRO. Dr Durack is a graduate of the CSIRO-University of Tasmania Quantitative Marine Science program and he received additional support from CSIRO's Wealth from Oceans Flagship. Work undertaken at Lawrence Livermore National Laboratory is supported by the U.S. Department of Energy under contract DE-AC52-07NA27344.

CSIRO website


by CSIRO

  

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

http://www.sail-world.com/index.cfm?nid=98722

10:51 PM Wed 20 Jun 2012GMT


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:

23 May 2012  Tres Hombres sailing cargo ship arrives, no room at the inn
08 May 2012  Tres Hombres - another sailing cargo ship
07 May 2012  Another Solar Odyssey - around the USA's 'Great Loop'
06 May 2012  PlanetSolar - she's arrived! First around the world on solar energy
29 Apr 2012  The Waterfront Challenge - calling all sailors
27 Apr 2012  Bottom paint matters - San Diego waterways get a thumbs-up
18 Apr 2012  Solar-powered yacht's circumnavigation - in the home stretch
09 Apr 2012  Royal Yacht Squadron leads the armada against windfarm plan
06 Apr 2012  Where the whales are
19 Mar 2012  GreenBlue wants a report card
MORE STORIES ...






News - USA and the World

We’re talking, of course, about Johannes Polgar and Markus Koy, who make up one of two German duos in Nassau this year, along with 2014 World Champion Robert Stanjek. Polgar and Koy have been strong sailing partnership for many years now and finished fifth in the 2013 Star Sailors League Final with just Scheidt-Prada, Kusznierewicz-Zycki, Mendelblatt-Fatih and Negri-Lambertenghi in front of them. ... [more]  

Volvo Ocean Race: Heading into a tropical Depression *Feature by Mike Scullin, Predictwind
The weather team at PredictWind have put together this prognosis for the next few days, looking at what lies ahead of the Volvo Ocean Race fleet ... [more]  

Seven Australian Sailing Team and Squad crews are currently competing in five of the Olympic events at Abu Dhabi at the inaugural ISAF Sailing World Cup Final. Next on the AST and Squad’s calendar is the World Cup in Melbourne, December 7-14, 2014. The deadline of Tuesday December 2nd for entries is fast approaching and organiser Yachting Victoria is calling for final registrations. ... [more]  

2014 RORC Transatlantic Race - The inaugural RORC Transatlantic Race, in association with the International Maxi Association (IMA), starts on Saturday 29th November 1200 CET from Lanzarote, Canary Islands bound for Grenada, West Indies, 2,995 nautical miles across the Atlantic Ocean. ... [more]  

ISAF Sailing World Cup Final Abu Dhabi 2014: Smiles were present before racing at the Abu Dhabi Sailing & Yacht Club, on the waters off of the Corniche and around Lulu Island and back ashore upon the conclusion of racing. A north westerly breeze that ranged between 9-14 knots greeted the sailors across the four race tracks. The outside courses saw big waves to add some spice to the sailors’ lives. ... [more]  

Volvo Ocean Race - Team Brunel: Sailing against the wind and ramming into waves is not exactly comfortable. But it can get worse, because right now we are heading straight into a tropical storm. 'Tro-tro-tropical storm?' I stammer in fright to Louis Balcaen. The young Belgian sailor quickly makes it clear that I’m not the only one who is afraid of this particular weather condition. ... [more]  

The Commodore of the San Diego Yacht Club, which has hosted three America's Cups and one America's Cup World Series, appeared on local TV, commenting on the apparent decision to award the 35th America's Cup to British Overseas Territory of Bermuda. In this replay of the video Commodore Chuck Sinks, deftly stays within the confines of not confirming that Bermuda has won the hosting rights. ... [more]  

Overall race leader, Abu Dhabi Ocean Racing has slipped in the Volvo Ocean Race having led for most of Leg 2, and won Leg 1. But as has been done before Abu Dhabi has caught up, and now playing storm-watch. ... [more]  

Mast track issues have dogged the Chinese Volvo Ocean Race entry, Dongfeng Race Team on Leg 2 on the 40,000nm round the world race. The problem is not fully repairable in the current upwind and bumpy conditions, and is certainly an issue of concern for Charles Caudrelier led team. ... [more]  

Volvo Ocean Race: The Traemeister's onboard gym session *Feature by Richard Gladwell/Sail-World.com/nz
On Board Reporter, Brian Carlin, claimed he did not know what a Gym before he set foot aboard Team Vestas Wind. And then compounded his issues by saying that he thought 'Gym' was pronounced 'Gime'. Fitness freak Trae has taken on the invidious task of getting the Irish OBM up to a passable fitness level, believed to be 100 push-ups. ... [more]  

Volvo Ocean Race: Thanksgiving at Sea *Feature by Richard Gladwell/Sail-World.com/nz
Although they may be far from home, old traditions aren't forgotten as the US crew aboard Team Alvimedica celebrate one of the great traditions. And the non-US crew partake of their first Thanksgiving, off the coast of Madagascar. There's some of the traditional fare, adapted for the Volvo Ocean Race, and some messages and mementos from home. ... [more]  

2014 Rolex Sydney Hobart Yacht Race - The official launch of Syd Fischer’s super maxi, Ragamuffin 100, will take place next Tuesday, 2 December 2014, at Sydney City Marine Complex, Rozelle. ... [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]  

Volvo Ocean Race: Mapfre takes lead in Leg 2 as break point looms *Feature by Richard Gladwell/Sail-World.com/nz
The latest position report from Volvo Ocean Race Control has given the lead in leg 2 of the Volvo Ocean Race to Mapfre (Iker Martinez). She takes over the lead from Abu Dhabi Ocean Racing (Ian Walker), who has led from soon after the start of Leg 2, a week ago. ... [more]  

Over 270 sailors from 38 nations have enjoyed a mixed range of conditions since their arrival early on in the week. The athletes have used the time to acclimatise to their surroundings, different sea states and a variety of wind strengths. But now, the practice time is over with racing across the ten Olympic and open kiteboarding fleets to kick start the inaugural ISAF Sailing World Cup Final. ... [more]  

VOR 2014-15: Some of them also wake up in the middle of the night to check the latest position reports of Team Brunel. The crew is aware of that, including our skipper Bouwe Bekking. 'We are not the only ones looking out for the position reports. We know that the home front is eyeballing every move of us. Our wives, children, girlfriends, friends and supporters live this race as extreme as we.' ... [more]  

ISAF Sailing World Cup Final 2014: Among the ten Olympic series represented, Franck Cammas will be participating in the event for the first time aboard a Nacra 17, this time teaming up with the young, light Alizée Desbordes. Having remained in France to satisfy her professional obligations, Sophie de Turckheim will be following the performance of her favourite helm closely. ... [more]  

ISAF Sailing World Cup Final: Bjorn Allansson (SWE), Briana Provancha (USA), Sofia Bekatorou (GRE), Lara Vadlau (AUT) and Anton Paz (ESP) have fully embraced the Abu Dhabi and Emirati life, grasping the opportunities available with both hands. 'There are so many welcoming and friendly people here,' explained Provancha at the opening press conference. ... [more]  

Leading sailing marine electronics manufacturer B&G has been appointed an Official Race Supplier for the Volvo Ocean Race 2014/15. B&G will also be providing full electronic navigation systems, tactical software and race support to the organisers of the 2014 Volvo Ocean Race, which began on the October 4th in Alicante, Spain. ... [more]  

If you missed this week's edition of Adventures of a Sailor Girl, then hear the replay below. Adventures of a Sailor Girl #31 - Pathways and passion! ... [more]  

Star Sailors League Finals: This Bahaman event is about much more than just sailing, however: it promises a blistering week of high emotion, passion and dazzlingly action that will deliver a unique display of sporting prowess from a slew of champions. All in an easy-to-grasp and see format that even non-sailing folk will understand perfectly. ... [more]  

America's Cup: Sweden to host World Series regatta in 2015 by Richard Gladwell/Sail-World.com/nz
Artemis Racing and the City of Gothenburg are set to host an America’s Cup World Series event during the last weekend of August (28th - 30th) 2015. Racing will take place either on the Gota River close to the city centre, or at Långedrag, and the race village will be located in Frihamnen. ... [more]  

2014 RORC Transatlantic Race - The inaugural RORC Transatlantic Race, in association with the International Maxi Association (IMA), starts on Saturday 29th November from Lanzarote bound for Grenada, 2,995 nautical miles across the Atlantic Ocean. All of the competing yachts are now safely moored in Puerto Calero Marina and last night an informal welcome drinks reception was well received with crew ... [more]  

2014 Chicago Match Cup - At the end of Chicago Match Race Center's sixth season, the numbers show how well CMRC reached both into and beyond the Great Lakes sailing community. CMRC hosted a total of 12 graded events from May to October. Of these, the five Grade Three regattas were the best attended featuring 23 skippers from nine countries. ... [more]  

2014 Extreme Sailing Series - Act 8 - Tom Slingsby, Australian Olympic Laser Gold medalist, and member of Oracle Team USA, has signed up as skipper of Oman Air, one of two Oman Sail Extreme Sailing teams, for the final act of the Extreme Sailing Series in Sydney, Australia (11-14 December). ... [more]  

Volvo Ocean Race: Big spread in fleet as Abu Dhabi leads *Feature by Richard Gladwell, Sail-World.com/nz
Abu Dhabi (Ian Walker) continues to lead the Volvo Ocean Race. She is the most westerly of the fleet as they approach the coast of Madagascar. In a video, Abu Dhabi skipper Ian Walker explains the weather hazards of the second leg of the Volvo Ocean Race. ... [more]  

ISAF Sailing World Cup Final 2014: With a packed crowd of local dignitaries, VIPS and competitors, the ISAF President welcomed the world’s finest Olympic sailors and kiteboarders who will be battling it out on Abu Dhabi's waters. 'It’s a great honour for me to be here today because we have a very important regatta which will be the future of our sport,' explained Croce. ... [more]  

Sir Keith Mills GBE announced that America’s Cup Racing is to return to British waters when the America’s Cup World Series (ACWS) takes place in Portsmouth 23-26 July 2015 and 21–24 July 2016. The second European location is expected to be Cagliari in Italy, where Luna Rossa Challenge have their base. ... [more]  

Volvo Ocean Race: Welcome to Brian's Gime *Feature by Brian Carlin, Team Vestas Wind, At sea
The irrepressible Brian Carlin, the On Board Reporter for Team Vestas Wind is on fitness program on board, under the watchful eye of race veteran Tony Rae. Today as my personal trainer, friend and fellow shipmate we accomplished a goal, 70 press-ups. I’m sure to some it maybe easy but I ask anyone of you right now sitting at your desk, hit the floor and give me 70 on the spot. ... [more]  

Two of the crew from Overall race leader, Abu Dhabi Ocean Racing look at leg 2 and the race overall. Here are the latest blogs (unedited) from On Board Reporter Matt Knighton, along with an onboard video with Simon Fisher (navigator) musing on what is required to win the race, and skipper Ian Walker on how Leg 2 has panned out for them so far. ... [more]  

Rolex Sydney Hobart Yacht Race 2014 - A new deal for corinthians by Bruce Montgomery – Rolex Sydney Hobart media
Rolex Sydney Hobart Yacht Race 2014: Since 1945 starters in the Sydney-Hobart have raced the equivalent of two circumnavigations of the world, almost 45,000 nautical miles. They have been drawn from the seven seas; they come from all corners of the world; they board boats that range from 100-feet supermaxis to boats littler larger than the Owl and the Pussycat’s. ... [more]  

2016 Hansa Class Combined World and International Championships - The International Hansa Class Association has announced that the 2016 Hansa Class Combined World and International Championships will be held in the Netherlands. ... [more]  

Most of the nearly 300 sailors on 216 boats in 21 classes in Alamitos Bay Yacht Club's 67th Turkey Day Regatta came to enjoy sunny sailing in mild conditions, which the weekend delivered beautifully. By tradition, the winners received turkeys, not trophies, but for a few others it was another important stopover en route to Rio de Janeiro and the 2016 Olympics. They hope. ... [more]  

St Barth Cata Cup - New winners on the Island
Star Sailors League Final -Interview with Robert Scheidt
USODA 2015 Nationals - Pensacola Yacht Club to host
Sir Robin Knox-Johnston, an inspirational legend
ISAF Sailing World Cup Final: Inspiring the next generation in the UAE
Airwaves Noumea PWA Dream Cup – Albeau completes world title hat-trick
Volvo Ocean Race – Team Alvimedica pushing harder
Volvo Ocean Race – ADOR continues to inspire youth
Volvo Ocean Race – Team SCA’s super fan
ISAF Sailing World Cup Final: Abu Dhabi Sailing Instructions published
ISAF Sailing World Cup Final - Italian 49erFX duo ready for action
St Barth Cata Cup day 3
Volvo Ocean Race: Racing between a Rock and a Hard Place
Volvo Ocean Race - Position report at: 24 Nov 0700 UTC
2014 RC44 Championship Tour trophy – Video highlights
Volvo Ocean Race - Position report at: 23 Nov 1930 UTC
Volvo Ocean Race - Position report at: 23 Nov 0748 UTC
Gladwell's Line: The America's Cup is now Bermuda's Cup? *Feature
VX ONE Winter Series - Norris and Family earn first weekend victory
RC44 Oman Cup - Nika wins and Team Aqua clinch their fourth RC44 title
18ft Skiffs: Club Championship, Cordukes Clubhouse Trophy - Race three   
Volvo Ocean Race: On board with Abu Dhabi - torn sail and where to go? *Feature   
2014 Argo Group Gold Cup - Bermuda shines   
2014 Turkey Day Regatta – Day 1   
Airwaves Noumea PWA Dream Cup - Delphine Cousin officially world champ   
Volvo Ocean Race: A man's got to do what a man's got to do   
RC44 Championship Tour - A great sailing day on the Gulf of Oman   
Sail-World Team holds first Continental Conference at METS   
ISAF Sailing World Cup Final - Open Formula Kiteboarding event preview   
Volvo Ocean Race: Fleet heads into the Southern Ocean + Videos *Feature   
ISAF Sailing World Cup Final - Set to be an 'experience of a lifetime'   
America's Cup: Source named in Bermuda venue leak *Feature   
2014 RC44 Oman Cup - Challenging day + Videos   
Volvo Ocean Race: A bumpy, hard driving ride in the Southern Ocean   
EPA punts on renewable fuel standard   
Yates Cup: US supermaxi Rio100 wins first offshore race + Video *Feature   
Airwaves Noumea PWA Dream Cup - Men’s title race takes a twist   
RC44 Oman Cup - Consistency hard to come by   
Volvo Ocean Race - Discomfort takes over for Team Alvimedica   
Volvo Ocean Race - Rapid change for Team SCA   


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/FaceBook-icon.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 NEW US
LocalAds   DE  ES  FR  IT