News tagged with ocean water
Jupiter's Moon Europa Has Enough Oxygen For Life
New research suggests that there is plenty of oxygen available in the subsurface ocean of Europa to support oxygen-based metabolic processes for life similar to that on Earth. In fact, there may be enough ...
Space & Earth / Earth Sciences
Oct 16, 2009 |
4.6 / 5 (137) |
42
Catastrophic sea levels 'distinct possibility' this century: study
A breakthrough study of fluctuations in sea levels the last time Earth was between ice ages, as it is now, shows that oceans rose some three meters in only decades due to collapsing ice sheets.
Space & Earth / Earth Sciences
Apr 15, 2009 |
4.4 / 5 (90) |
25
Melting Greenland ice sheets may threaten Northeast United States, Canada
Melting of the Greenland ice sheet this century may drive more water than previously thought toward the already threatened coastlines of New York, Boston, Halifax, and other cities in the northeastern United ...
Space & Earth / Earth Sciences
May 27, 2009 |
4.2 / 5 (72) |
18
A fizzy ocean on Enceladus
For years researchers have been debating whether Enceladus, a tiny moon floating just outside Saturn's rings, is home to a vast underground ocean. Is it wet--or not? Now, new evidence is tipping the scales. ...
Space & Earth / Space Exploration
Jan 27, 2011 |
5 / 5 (29) |
52
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150 years later, Darwin vindicated... by jellyfish: Researchers link tiny sea creatures to large-scale ocean mixing
(PhysOrg.com) -- Creatures large and small may play an important role in the stirring of ocean waters, according to a study released Wednesday that confirms a theory advanced by Charles Darwin.
Space & Earth / Earth Sciences
Jul 29, 2009 |
4.6 / 5 (22) |
10
USF Study Shows First Direct Evidence of Ocean Acidification
(PhysOrg.com) -- Seawater in a vast and deep section of the northeastern Pacific Ocean shows signs of increased acidity brought on by manmade carbon dioxide in the atmosphere -- a phenomenon that carries with ...
Space & Earth / Earth Sciences
Jan 20, 2010 |
3.8 / 5 (27) |
54
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Scientist suggests life began in freshwater pond, not the ocean
(PhysOrg.com) -- For most everyone alive today, it's almost a fundamental fact. Life began in the ocean and evolved into all of the different organisms that exist today. The idea that this could be wrong causes ...
Space & Earth / Earth Sciences
Feb 14, 2012 |
4.5 / 5 (22) |
41
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Rising oceans - too late to turn the tide?
Melting ice sheets contributed much more to rising sea levels than thermal expansion of warming ocean waters during the Last Interglacial Period, a UA-led team of researchers has found. The results further ...
Space & Earth / Earth Sciences
Jul 15, 2011 |
4.8 / 5 (20) |
45
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Warming North Atlantic water tied to heating Arctic, according to new study
The temperatures of North Atlantic Ocean water flowing north into the Arctic Ocean adjacent to Greenland -- the warmest water in at least 2,000 years -- are likely related to the amplification of global warming ...
Space & Earth / Earth Sciences
Jan 27, 2011 |
3.9 / 5 (24) |
26
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Massive Southern Ocean current discovered
(PhysOrg.com) -- A deep ocean current with a volume equivalent to 40 Amazon Rivers has been discovered by Japanese and Australian scientists near the Kerguelen plateau, in the Indian Ocean sector of the Southern ...
Space & Earth / Earth Sciences
Apr 26, 2010 |
4.8 / 5 (19) |
0
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Sea Salt Holds Clues to Climate Change
(PhysOrg.com) -- We know that average sea levels have risen over the past century, and that global warming is to blame. But what is climate change doing to the saltiness, or salinity, of our oceans?
Space & Earth / Earth Sciences
May 01, 2009 |
4.5 / 5 (20) |
3
First comet found with ocean-like water: New clues to creation of Earth's oceans
(PhysOrg.com) -- New evidence supports the theory that comets delivered a significant portion of Earth's oceans, which scientists believe formed about 8 million years after the planet itself.
Space & Earth / Space Exploration
Oct 05, 2011 |
4.8 / 5 (18) |
120
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Pluto's hidden ocean
When NASA's New Horizons cruises by Pluto in 2015, the images it captures could help astronomers determine if an ocean is hiding under the frigid surface, opening the door to new possibilities for liquid water ...
Space & Earth / Space Exploration
Nov 24, 2011 |
4.9 / 5 (17) |
11
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Water Planets
Of the roughly 420 extra-solar planets now known, about a dozen are in the newly named category of "super-earths," planets whose masses are in between of two and about fifteen earth-masses.
Jan 22, 2010 |
4.6 / 5 (18) |
4
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The world's oldest water?
New evidence bolsters the notion that deep saline groundwaters in South Africa's Witwatersrand Basin may have remained isolated for many thousands, perhaps even millions, of years. The study, recently accepted for publication ...
Space & Earth / Earth Sciences
Feb 20, 2011 |
4.9 / 5 (17) |
0
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Seawater
Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every 1 kg of seawater has approximately 35 grams of dissolved salts (mostly, but not entirely, the ions of sodium chloride: Na+, Cl-). The average density of seawater at the surface of the ocean is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4°C) because of the added mass of the salts. The freezing point of sea water decreases with increasing salinity and is about -2°C (28.4°F) at 35 gram per liter.
For more information about Seawater, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
