Menu
Scientific news and articles
Male pipefish decide who survives
Saturn's rings a chaotic clutter
Researchers develop desal on a chip
Final missing piece of insulin lock found
Volcano helped dinosaurs gain upper hand
Bouncing current could speed up charge
Bleaching leaves Lord Howe reef 'on knife edge'
Floor price for booze good as taxes, study
Concerns over varroa mite resistance
Microbes breathe life into oxygen theory
Pre-history rewritten as new human discovered
Dung beetle claims strongest insect title
Scientists unearth Australian tyrannosaur
Splitting cyclone reveals Neptune's nature
Junk food can become addictive: study
Bumblebees have superfast colour vision
Black holes may be 'missing dark matter'
Magnets can manipulate morality: study
Sun helps bats find home in the dark
LHC to begin 'Big Bang' project
Trial of bionic eye within three years
Easter eggs may be good for your heart
Mega-flood triggered European ice age
Finch genome music to researcher's ears
Ocean saltiness reaching new limits
The supercharging of Earth's water cycle by global warming is making some parts of our oceans saltier, while others parts are getting fresher, according to a new study.

The study, by CSIRO Marine and Atmospheric Science shows a clear link between salinity changes at the surface, caused by warming, and changes in the deeper waters over the last six decades.

CSIRO scientist Paul Durack says the saltiness, or salinity, of the oceans is controlled by evaporation and rainfall. The more heat and evaporation there is at a given patch of ocean, the more concentrated the salts get in the seawater, and the higher the salinity.

In places where a lot of rain is falling, the salty water gets more diluted and fresher.

Tracking the salinity changes over the oceans is, then, a great way to monitor the water cycle over the oceans. That's pretty important, says Durack, since the 97% of the water on Earth is in the oceans that cover 70% of the planet. So when the oceans start saying the global climate is changing, it's truly a global matter.

"The thing is, the general (population) doesn't live in the oceans," says Durack who has co-authored with Dr Susan Wijffels a paper in the latest issue of the Journal of Climate.
Rainfall proxy

There are few actual rain gauges in the oceans. "So salinity is effectively a proxy for rainfall." In other words, the salinity changes are the rain gauges for the oceans.

Durack analysed more than 1.6 million oceanic readings from the now 2000-strong army of autonomous ARGO buoys, to create a framework into which they could fit the 'spotty' ocean salinity data collected since 1950.

After subtracting out such things as cyclical seasonal salinity changes seen by ARGO buoys, El Nia33;os and other extreme events, they identified a strong signal of more evaporation and rainfall over the oceans.

What they found is that the tropical waters of the Indian, Atlantic and Pacific oceans are getting saltier while the higher latitude waters are getting fresher.

But the matter goes deeper than just the ocean surface water, says Durack.
Under the surface

The ARGO buoys don't just float around, they can sink down to three kilometres under the surface and then rise again, gathering data the whole way to create three dimensional ocean profiles. These show that the salinity changes are actually moving into the depths.

"While such changes in salinity would be expected at the ocean surface (where about 80% of surface water exchange occurs), sub-surface measurements indicate much broader, warming-driven changes are extending into the deep ocean," says Durack.

"Before we had the global array of ARGO we really didn't have any idea," he says.

Previous studies were, by necessity, snap shots that could see changes, but not really address the amounts of change in the oceans.

"This is probably one of the most significant papers we've seen yet in this area," says Dr Dean Roemmich, part of the ARGO leadership team and a professor at the University of California at San Diego's Scripps Institution of Oceanography. "This is only the most recent paper on this topic and I think it is the best paper on this topic."

Print
New Zealand's GM livestock given reprieve
Nano diamonds to become a doctor's best friend
Ocean saltiness reaching new limits
Volcanic ash unlikely to cool planet
Silk forms 'intimate' brain connection
New drug improves hepatitis C outcome
Microbial life discovered in asphalt lake
Green tea may strengthen your teeth
Head-ramming dino had 'gears' in skull
Clever crows show innovative behaviour
Research casts doubt on brain training
Multiple unknowns cloud volcano's impact
Staying fit helps men 'do it longer'
Copenhagen sets Earth for more warming
Solar spacecraft begins study of our Sun
Mixed messages on gene patenting
Gene study finds multiple species of orca
Dreaming boosts learning and creativity
Scientists measure massive ocean current
Genes influence smoking addiction: study
Nanowires create volts of electricity
Fisheries urged to diversify their 'take'
Chimps confront death in human-like ways
Chile to host world's biggest telescope
Trapping light to improve solar cells
Experts debate use of HPV test
Japan to launch 'space yacht'
Sea ice loss key to Arctic warming, study
Menu
Australian lasers to track orbiting junk
Thawing nitrous oxide overlooked: study
'Sound bullets' could blast cancer
Lasers could spark clean nuclear power
Seaweed slows black sea snakes down
Asteroid impacts cause crustal crisis: study
Flu jab link to increased H1N1 risk: study
Intestinal germ helps sushi digestion
Researcher closes in on freezing conundrum
Test identifies smokers at highest risk
New species of human found in 'death trap'
'Planet of love' still hot and active
Stress takes its toll on tiny lizard
Scientists record world's tiniest nudge
Cell signals shed light on breast cancer
Parasites behind seasonal allergies
Study finds maternal deaths falling
Pluto's family set to grow tenfold
Diet cuts Alzheimer's risk: study
Whales get physical when seas get rough
'Tweets' could warn of future epidemics
Quolls force-fed toads in survival fight
Researchers question use of silver dressings
Scientists create truly random numbers
Visit Statistics
http://google.com/

http://bing.com/

https://gepatit-info.top/

https://serdechnic.com/

https://buy-meds24.com/

https://dverirespekt.ru/

https://www.sribno.net/

https://undergroundcityphoto.com/

https://detskiezabolevaniya.com/

http://grafaman.ru/

http://innoslicon.com/html/product/index.htm

https://yginekologa.com/

https://yes-com.com/

https://www.baikaleminer.com/

https://bitmaein.com/shop

https://www.artdeko.info/

https://aerodizain.com/

http://xn--d1abj0abs9d.in.ua/

http://lider82.ru/

http://sta-grand.ru/

http://snabs.kz/

https://sky-mine.ru/

https://rybalka-opt.ru/

http://snegozaderzhatel.ru/

https://xn--e1aaajzchnkg.ru.com/

http://hit-kino.ru/

http://www.regionshop.biz/

https://xn--80aaafbn2bc2ahdfrfkln6l.xn--p1ai/

https://pp-budpostach.com.ua/

https://vykup-avto-krasnodar.ru/

https://gcup.ru/

https://mega-polis.biz.ua/

http://vanrise.com.ua/

http://infra-e.ru/

https://veterinariya.com/

https://ponosanet.com/

https://cariestop.com/

https://proartrit.com/

https://elonm.ru/

https://nakozhe.com/

https://spinanebolit.com/

http://zameskino.ru/

http://kinoprinc.ru/

http://pospektr.ru/

http://buypillsonline24h.com/

http://komputers-best.ru/

https://komp-pomosch.ru/