Sentences with phrase «of warmer deep water»

Due to both bottom - boundary layer friction and interior adjustment, this coastal current anomaly facilitates the movement of warmer deep water upward onto the continental shelf and toward the coast (see Figure).

Glaciers along the Amundsen Sea terminate in deep water, and are most susceptible to periodic upwelling of that warmer deep water, which causes basal melting.49, 50,51,52

A shift in the wind direction during the 1940s caused renewed upwelling of warm deep water on to the shelf.

Suggested mechanisms range from upwelling of warm deep waters onto the continental shelf in response to variations in the westerly winds, to an influence of El Niño — Southern Oscillation on sea surface temperatures.

Katrina was strengthened because it encountered a tounge of warm deep water in the Gulf — so how did that tounge get there?

Not exact matches

Blessed with warm sunny weather all year round (roughly 300 days of sunshine a year), ringed by the Atlantic Ocean on one side and protected on the other by the calm, deep - blue waters of the Tagus River (the longest river in the Iberian Peninsula), this traditionally sophisticated city seems to have it all.

As she pointed out, «If you found out you could have a baby in a warm, deep pool of water compared to flat on your back with people yelling at you to push, what would you choose?»

The data also show a land bump, or sill, at the mouth of Skinfaxe glacier, which prevents warmer, deep Atlantic water (yellow on temperature bar) from reaching the ice.

They found glacial fjords hundreds of meters deeper than previously estimated; the full extent of the marine - based portions of the glaciers; deep troughs enabling Atlantic Ocean water to reach the glacier fronts and melt them from below; and few shallow sills that limit contact with this warmer water.

If sunlight must penetrate the dust covering a comet's water ice in order to warm it and produce jets, Sunshine says the Deep Impact findings suggest the ices on such dormant comets may not have run out but merely become sealed — by layers of debris, for example.

They identified wind patterns that mixed the warmer surface and colder deep waters to cool the ocean's surface and reduce the intensity of the storm.

«The undersides of glaciers in deeper valleys are exposed to warm, salty Atlantic water, while the others are perched on sills, protected from direct exposure to warmer ocean water,» said Romain Millan, lead author of the study, available online in the American Geophysical Union journal Geophysical Research Letters.

Dr Hillenbrand continues: «Our reconstruction shows that warm deep water flooded Pine Island Bay at the end of the last ice age.

Researchers can measure annual changes in how the melt rate occurs, for example, or the effects of a single pulse of warm deep - ocean water.

Muscles must stay warm to remain efficient, but that's a challenge for these beasts because they often swim in near - freezing waters, either in cold regions of the world or deep below the sun - warmed surface.

This water is warming an average of 0.03 degrees Celsius per year, with temperatures at the deepest ocean sensors sometimes exceeding 0.3 degrees Celsius or 33 degrees Fahrenheit, Muenchow said.

Driven by stronger winds resulting from climate change, ocean waters in the Southern Ocean are mixing more powerfully, so that relatively warm deep water rises to the surface and eats away at the underside of the ice.

Scientists thought strong upwelling of colder deep waters spared the region from the warming seen in other parts of the Pacific, she said.

However, in their wake, hurricanes set up large - amplitude waves that mingle warm surface water with colder deep water, says climate scientist Matthew Huber of Purdue University.

In a recent paper published in Nature Geoscience, his team identified two deep underwater cavities beneath the glacier that they note could be pathways for relatively warm ocean water to reach the underside of the glacier, enhancing its melting.

MELT OFF Off the coast of the western Antarctic Peninsula (shown), upwelling of relatively warm, deep water has been linked to the melting of ice shelves, which help buttress the region's glaciers.

The cold water of the deep, however, expands less for the same input of heat and has a greater capacity to store warm water.

Deep lakes warm very slowly in the spring, and small changes in water temperature at the end of winter can lead to large changes in the timing of summer stratification for these lakes.

El Nino's mass of warm water puts a lid on the normal currents of cold, deep water that typically rise to the surface along the equator and off the coast of Chile and Peru, said Stephanie Uz, ocean scientist at Goddard Space Flight Center in Greenbelt, Maryland.

Even as the surface warms, the deeps remain cool, and this cold water will continue to periodically push the ocean out of the El Niño state.

The models reveal a «hydrothermal siphon» driven by heat loss from deep in the Earth and the flow of cold seawater down into the crust and of warmed water up out of the crust.

However, when temperatures warm over the Antarctic regions, deep waters rise from the floor of the ocean much closer to the continent.

A new study led by the University of Texas Institute for Geophysics has found that wind over the ocean off the coast of East Antarctica causes warm, deep waters to upwell, circulate under Totten Ice Shelf, and melt the fringes of the East Antarctic ice sheet from below.

So when wind pulls warm water up from down deep, the temperature difference experienced at the interface of the water and ice can effectively submerse the glacier in a hot bath, with some areas experiencing more than a 10-fold increase in melt rate.

One result is a flow of cold deep water toward the equator and warm surface water toward the poles, and this «overturning circulation» plays a crucial role in moving heat around the globe.

High areas of OHC indicate warm, deep water.

«Cold, deep water from this little area of the Nordic seas, less than 1 % of the global ocean, travels the entire planet and returns as warm surface water.

That deep water is not only rich in nutrients, it also has relatively high concentrations of carbon dioxide, both because it is cold (cold water can absorb and hold more carbon dioxide than warm water) and because the decomposition of organic matter that sinks into the depths releases carbon dioxide.

So the air was getting colder, but the deep ocean water was getting warmer, during the coldest periods of the Ice Age.

Deep ocean water, which is relatively warm, has been melting portions of the ice sheet at its base.

The study marks the first time that human influence on the climate has been demonstrated in the water cycle, and outside the bounds of typical physical responses such as warming deep ocean and sea surface temperatures or diminishing sea ice and snow cover extent.

Deeper water remained unusually warm, especially in the northern part of the California Current.

Tuna, marlin and great white sharks heat up certain areas — swimming muscles, parts of their viscera and the eye and brain — but these regional endotherms can stay at lower depths only for short periods and must rise to warmer waters, unlike the deep - dwelling opah.

The ice shelf floats within a pool of its own cold meltwater that sits atop a deeper, saltier and warmer layer; the two layers generally don't mix, like oil and water.

Essentially, the researchers found that deeper warm water is increasingly mixing with the cool layer of water that traditionally lies atop the eastern part of the Arctic Ocean.

OTEC is a relatively marginal alternative energy source that uses cold deep water and warm surface water to run the equivalent of a reverse fridge cycle.

The wind changes were found to be heaving warm currents from deeper waters up into a zone where the Antarctic ice sheet is vulnerable to melt and crumble from beneath — the area where towers of ice sit atop submerged ground.

That means it sinks into the deeper layers of the ocean, and the contrast between this warm water and the undersea ice canyons contributes an unknown but substantial amount of sea level rise, said Josh Willis, an oceanographer at JPL in Pasadena, California.

Deep rocks have been cracked open and water isolated for billions of years released — the liquid may represent Darwin's «warm little pond» where life arose

Because such deep seawater circulates from the coast of Antarctica, this deep - water warming implies that the Southern Ocean drove the last major climate change.

Because existing phenomena — such as thermal expansion of water from warming — do not fully explain the corrected sea - level - rise number of 3.3 millimeters, stored heat in the deep ocean may be making a significant contribution, Cazenave said.

Warmer waters in the deep Pacific triggered the end of the last ice age, preceding the rise in greenhouse gas levels

«The deep Pacific is such an enormously large volume of water that [this warming] reflects the input of a tremendous amount of energy into the global system.»

With higher levels of carbon dioxide and higher average temperatures, the oceans» surface waters warm and sea ice disappears, and the marine world will see increased stratification, intense nutrient trapping in the deep Southern Ocean (also known as the Antarctic Ocean) and nutrition starvation in the other oceans.

The deep circulation that drives warm surface waters north is weakening, leading to a cooling of the north Atlantic relative to the rest of the oceans.