Also, it needs to be understood that eastern boundary currents are part of this meridional overturning circulation (transport and upwelling of water originating
as polar water previously subducted)
Not exact matches
From
water - and snow - resistant parkas made from skins worn by hunters in
polar regions to garments fabricated using woven straw, such
as the ancient Japanese
From
water - and snow - resistant parkas made from skins worn by hunters in
polar regions to garments fabricated using woven straw, such
as the ancient Japanese mino, people have long sought ways to remain dry while outside in wet weather.
Many scientists think these permanently shadowed regions, such
as the floors on impact craters in the Moon's
polar regions, could hold large deposits or
water ice.
These low - oxygen zones form naturally
as colder
waters that have absorbed oxygen in the
polar regions sink and flow south.
As a result,
polar residues on proteins are called hydrophilic, or «
water - loving.»
But these low - oxygen
waters near the equator are expanding, because the
water in the
polar regions is not
as cold and is not absorbing
as much oxygen
as it used to be.
Soaps are useful for cleansing because soap molecules attach readily to both nonpolar molecules (such
as grease or oil) and
polar molecules (such
as water.
These particles can build up electric charges faster than the soil can dissipate them and may cause sparking, particularly in the
polar cold of permanently shadowed regions — unique lunar sites
as cold
as minus 240 degrees Celsius and known to contain
water ice.
When they discovered a new parasite in
water fleas a couple of years ago, they classified this undescribed species
as a microsporidium, mostly because it possessed the unique harpoon - like infection apparatus (the
polar - tube), one of the hallmarks of microsporidia.
MTMS - uncoated cellulose aerogels are hydrophilic, thus they can also absorb and retain huge volumes of
polar fluids such
as water and alcohol.
Background Mammals that have evolved to live in cold
waters, such
as whales, seals, sea lions and
polar bears, commonly have a layer of blubber.
As Mars Express flies in
polar orbit, dipping to within 155 miles of the planet spinning beneath it, instruments made in Sweden, France, and Italy will map the composition of the atmosphere, looking in part for evidence that vestiges of that
water are still escaping into space.
The GRS will also be able to detect the presence of volatile materials in the permafrost and the
polar caps, such
as water and carbon dioxide.
As a result of atmospheric patterns that both warmed the air and reduced cloud cover as well as increased residual heat in newly exposed ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Surve
As a result of atmospheric patterns that both warmed the air and reduced cloud cover
as well as increased residual heat in newly exposed ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Surve
as well
as increased residual heat in newly exposed ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Surve
as increased residual heat in newly exposed ocean
waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for
polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Survey.
Some changes are well - known, such
as declines in
polar bear populations and stresses to walruses being forced out of their shallow feeding grounds
as ice retreats into deeper
waters.
He re-told the familiar tale of the evolution of land animals from ancient fish, and then considered the return of various groups of reptiles, birds and mammals to an aquatic existence: ichthyosaurs and plesiosaurs, crocodiles, sea - snakes, penguins, whales, dolphins and porpoises, manatees and dugongs, and seals —
as well
as polar bears, otters and
water voles, who hunt in
water.
Water seems to exist there only
as ice, in the
polar ice caps and perhaps under the Martian soil.
Cold,
polar waters constantly absorb CO2, sink
as it becomes more dense, and is transported to the equatorial
waters via the ThermoHaline and outgases in the warmer
waters of the Indian and Pacific Oceans.
Dan H.: «Cold,
polar waters constantly absorb CO2, sink
as it becomes more dense, and is transported to the equatorial
waters via the ThermoHaline and outgases in the warmer
waters of the Indian and Pacific Oceans.»
On March 21, 2012, the MESSENGER team also revealed new supporting evidence that many permanently shadowed craters in Mercury's
polar regions may harbor
water ice insulated with a thin layer of soil or dust, or some other radar - reflecting volatile substance such
as sulfur.
Impact craters at many latitudes sometimes expose thin ice layers a foot or so beneath Mars» surface.132 «At
polar latitudes,
as much
as 50 percent of the upper meter of soil may be [
water] ice.»
Often photographed clinging to Arctic ice floes
as its habitat melts away into warming
waters, the
polar bear is the poster child for U.S. efforts to save wildlife on the brink of extinction using the Endangered Species Act.
•»
As a result of low gravity attraction in the region of equatorial bulge and high gravity attraction in the region of
polar flattening, melt -
water would not move from
polar region to equatorial region.
That is, since
water molecules are
polar, having a positive end and negative end, they begin to rotate rapidly
as the alternating electric field passes through.
The
polar constituents dissolved into
water during the distillation process, hydrosols contain minuscule amounts of essential oils and are very safe to consume and work wonderfully
as spritzers, perfumes, and in body care products.
In fact, the process appears to be general for all
polar (
water - soluble) substrates,
as transporters are the mechanism by which they are transported across the highly non-
polar (lipid) cell membranes.
Kevin Costner stars
as the enigmatic drifter known only
as «the Mariner», at a time when the world has been covered with
water from the melted
polar icecaps.
Understanding of ionic charge, ionic bonding, the dissolving process, molecular polarity, and intermolecular forces will employed to explain the solubility of salts in
polar solvents such
as water.
On the other hand, during those periods between widespread glaciation, the
water had melted from the ice sheets and
polar areas, flowed, back into the oceans and sea level was
as high or higher than now.
Other
polar bear chapters have to hack ice off frozen lakes and ponds before jumping into rigid
water; so Sanibel's event in sunny Florida is jokingly known
as the «Solar Bear Plunge.»
[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG,
water vapor, exists in equilibrium with
water / ice, would precipitate out if not for the CO2, so acts
as a feedback; since the oceans cover so much of the planet,
water is a large positive feedback; melting snow and ice
as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger
polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)
However, freshened
polar surface
waters act
as a barrier to atmospheric transfer, diverting products into the deep return flow.»
The likelihood of serious sea level rise under «business
as usual», and impacts on
water resources may not have the acute drama associated with
polar bear population decline or the possibility of massive methane clathrate releases, but they are much more likely to figure on policy makers agendas — just
as other long term chronic issues (such
as pensions) do.
As far as this historic period is concerned, the reconstruction of past temperatures based on deep boreholes in deep permafrost is one of the best past temperature proxies we have (for the global regions with permafrost — polar regions and mountainous regions)-- as a signal of average temperatures it's even more accurate than historic direct measurements of the air temperature, since the earth's upper crust acts as a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is froze
As far
as this historic period is concerned, the reconstruction of past temperatures based on deep boreholes in deep permafrost is one of the best past temperature proxies we have (for the global regions with permafrost — polar regions and mountainous regions)-- as a signal of average temperatures it's even more accurate than historic direct measurements of the air temperature, since the earth's upper crust acts as a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is froze
as this historic period is concerned, the reconstruction of past temperatures based on deep boreholes in deep permafrost is one of the best past temperature proxies we have (for the global regions with permafrost —
polar regions and mountainous regions)--
as a signal of average temperatures it's even more accurate than historic direct measurements of the air temperature, since the earth's upper crust acts as a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is froze
as a signal of average temperatures it's even more accurate than historic direct measurements of the air temperature, since the earth's upper crust acts
as a near perfect conservator of past temperatures — given that no water circulation takes place, which is precisely the case in permafrost where by definition the water is froze
as a near perfect conservator of past temperatures — given that no
water circulation takes place, which is precisely the case in permafrost where by definition the
water is frozen.
Over all, open
water has spread in the Arctic this summer nearly
as much
as it did last summer, when
polar experts said the ice cap shrank far more than had been measured since satellites started scanning the region 30 years ago — and probably more than it had shrunk in a century or more.
Sea ice is critical for
polar marine ecosystems in at least two important ways: (1) it provides a habitat for photosynthetic algae and nursery ground for invertebrates and fish during times when the
water column does not support phytoplankton growth; and (2)
as the ice melts, releasing organisms into the surface
water [3], a shallow mixed layer forms which fosters large ice - edge blooms important to the overall productivity of
polar seas.
Also... Not discussed in the article...
As polar ice becomes greatly reduced, oceans will likely warm much more rapidly (similar to what happens when ice in a glass of
water becomes minimal).
(Often referred to
as «externalities» in economics, examples of environmental goods might be the
polar ice caps, unpolluted
water, the earth's atmosphere, and so on).
We might have a saviour in the form of the growing antarctic ice sheets in the southern winter
as this causes much more planckton to form on the undersurface of the forming ice sheet driving super saturated salty
waters deep into the circum
polar antarctic bottom
waters which is the main driver of the Great Oceanic Conveyor and later on it's travels the AMOC.
Animals that could swim did: the zoo's
polar bear, named Berlin, and a seal escaped
as the
waters floated them above the enclosures of their zoo homes.
The rise of CO2 from 270ppm to now over 400ppm, the extent of equatorial and sub tropical deforestation, the soot deposits on the
polar ice caps, the increase in atmospheric
water vapour due to a corresponding increase in ocean temps and changes in ocean currents, the extreme ice albedo currently happening in the arctic etc, etc are all conspiring in tandem to alter the climate
as we know it.
Last summer, government scientists predicted that,
as a result of climate change,
polar bears may disappear from the U.S. and its
waters entirely by 2050 — and that estimate doesn't even take into account potential effects from new oil and gas activities.
On a related front, a new paper in the journal Nature Communications (available in full online) projects deep reductions in litter size in the
polar bear population along the western shores of Hudson Bay, should the open -
water season continue to lengthen
as foreseen under the warming influence of accumulating greenhouse gases.
It is a very complex issue with no clear cut answers however
as it is critical for
polar bears to have both ice and
water any reduction of sea ice is going to reduce the population over the next few decades.
So when you transport enormous amounts of warm tropical
waters to the poles for about 400,000 years, you end up with ice ages, which after a while may shut down the MOC again, further increasing the
polar cooling,
as for instance happened at the Younger Dryas.
By Sreeja VN: Sizzling underwater glacial ice,
as it melts into warmer sea
water, creates one of the loudest natural marine environments, and the air bubbles that pop during the process could help scientists measure the rate of glacier melt and track fast - changing
polar environments.
-LRB-- NAO) This sea ice then melts in the Sub
Polar Atlantic, releasing fresh
water into the sub -
polar Atlantic
waters, which in turn impedes the formation of NADW, which slows down the thermohaline circulation causing warm air not to be brought up from the lower latitudes
as far north
as previous while in lessening amounts.
At the same time it declared that the listing should not be used
as a «back door» to combat global warming, indicating that the listing would provide
polar bears no more protection than before from oil drilling in Arctic
waters.
Global warming has a larger affect in
polar areas,
as the loss of snow and ice leads to more open
water, which absorbs more sunlight and warmth.