Sentences with phrase «from deep ocean waters»

Researchers say the mercury in coastal fog probably comes from deep ocean waters, which well to the surface every summer.

Our fish meal is from deep ocean water small fish, and our crab meal comes from the cold waters of the Pacific Northwest or Nova Scotia.

Not exact matches

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A new map of the surrounding seafloor helps explain why: Many of the fastest - melting glaciers sit atop deep fjords that allow Atlantic Ocean water to melt them from below.

These troughs allow warmer and saltier waters from deeper in the ocean to reach the glaciers and erode them.

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.

«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.

As these winds enhance ocean circulation, they may be encouraging carbon - rich waters to rise from the deep, say the team, meaning that surface water is less able to absorb CO2 from the atmosphere.

Those sites gave her the chance to gather fossils from many different depths in the ancient ocean, from the more oxygen - rich surface waters to deeper zones.

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 theocean 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 theOcean are mixing more powerfully, so that relatively warm deep water rises to the surface and eats away at the underside of the ice.

The rising temperatures cause layers of ocean water to stratify so the more oxygen - rich surface waters are less able to mix with oxygen - poor waters from the deeper ocean.

Deep water entering the Southern Ocean from the Indian and Pacific oceans follows a similar pattern.

A plague of oxygen - deprived waters from the deep ocean is creeping up over the continental shelves off the Pacific Northwest and forcing marine species there to relocate or die.

The problem stems from oxygen reduction in deep water, a phenomenon that some scientists are observing in oceans worldwide, and that may be related to climate change.

Once a year, they migrate from the deep ocean to shallow water along the Pacific Coast of North America.

And C. finmarchicus is far from being the only animal in the ocean which spends part of its life cycle in deep water.

Research begun at Princeton University found that the numerous small sea animals that migrate from the surface to deeper water every day consume vast amounts of what little oxygen is available in the ocean's aptly named «oxygen minimum zone» daily.

Beatty believes that when 570 degree Fahrenheit water from thermal vents hits cold, deep ocean currents, several light - producing processes may occur: sonoluminescence from imploding gas bubbles; chemiluminescence from chemical reactions (analogous to fireflies lighting up); crystalloluminescence from the formation of crystal bonds; and triboluminescence from the breaking of those bonds.

«Nobody had done rapid - response drilling in the ocean, nobody had drilled anything substantial under 7 kilometers of water, nobody had placed an observatory in a fault that deep, and nobody had retrieved a string of instruments from that deep,» she said.

The U.S. Navy plans to deploy a prototype device that extracts energy from the temperature difference between surface and deep - ocean water.

Real - world data back the claim: Accumulations of calcium carbonate in deep - sea Pacific sediments show that the Pliocene ocean experienced huge shifts at the time, with waters churning all the way from the surface down to about three kilometers deep, as would be expected from a conveyor belt — type circulation.

They compared isotope measurements on the silica skeletons of diatoms, which store environmental signals from the ocean's surface, with isotope signals from radiolarians, which live in deeper water layers.

In these areas, deep ocean waters that are naturally rich in carbon dioxide are upwelling and mixing with surface waters that are absorbing carbon dioxide from the atmosphere.

They hunt in the coastal ocean at night, when shrimp and squid — their favorite foods — migrate upward from deeper waters.

The resultant steam runs a turbine, and cold water drawn up from deep in the ocean condenses the steam to start the cycle again.

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

Whereas the nodules are scattered across the deep abyssal plains of the oceans, hundreds of miles from shore and typically three miles or more below the surface, many of the sulfide deposits are close to a coastline; also, they are always on undersea mountains and therefore located in much shallower water.

The water, 2000 km wide and 100 m deep, has affected ecosystems, changed weather inland, and altered ocean currents from Alaska to Mexico.

Koombana Bay's shallow and slow water currents mean that mixing with water from the deep ocean takes a long time.

Researchers studied the Cayman reefs, which are 80 miles south of Cuba and surrounded by deep ocean water, in part because of their remoteness and negligible impact from a small nearby human population, Frazer said.

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.

Washington, which produces farmed oysters, clams and mussels, is particularly vulnerable to acidification, for two reasons: seasonal, wind - driven upwelling events bring low - pH waters from the deep ocean towards the shore, and land - based nutrient runoff from farming fuels algal growth, which also lowers pH.

A series of robotic missions, from Viking in the 1970s to the Spirit rover still roaming Mars today, have observed ancient riverbeds and polar ice caps storing enough water to submerge the entire planet in an ocean 40 feet deep.

«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.

When petroleum leaks from a ship or a deep - water drilling operation, «it tends to break up into tiny droplets that don't all end up on the surface of the ocean,» says Thomas Azwell, an environmental scientist at the University of California (UC), Berkeley, who was not involved in the work.

Tides, storms and other disturbances in shallow water will stir up the bottom, while further from shore, where the water is deeper, turbulence can not reach the ocean floor, allowing sediment to settle undisturbed.

«In that area, like on the eastern boundaries of other tropical oceans, nutrient - rich waters from deeper water layers are transported to the surface,» explains co-author Prof. Dr. Hermann Bange, also from GEOMAR.

Although roughly 15 percent of the world's oceans overlie continental margins, these bands suffer from the logistical drawbacks of land and deep sea: inconveniently deep water and uncomfortably complex terrain.

One of the largest and most extensive low - oxygen zones ever recorded off the West Coast prevailed off the Oregon Coast last summer, probably driven by low - oxygen water upwelled from the deep ocean, the report said.

The team sailed from the Monterey Bay Aquarium Research Institute in California to a well - studied part of the ocean known as Line 67, where the water is deep yet poor in nutrients.

In his research published in the December issue of the journal Geology of the Geological Society of America, Czaja and his colleagues Nicolas Beukes from the University of Johannesburg and Jeffrey Osterhout, a recently graduated master's student from UC's department of geology, reveal samples of bacteria that were abundant in deep water areas of the ocean in a geologic time known as the Neoarchean Eon (2.8 to 2.5 billion years ago).

During the past 11,000 years, wind patterns have pushed warm waters from the deep ocean onto Antarctica's continental shelf

Researchers from the University of Southampton and Marine Institute, Ireland used novel biochemical tracers to piece together the diets of deep - water fish revealing their role in transferring carbon to the ocean depths.

«Where mid-depth waters from the deep ocean intrude onto the continental shelf and spread towards the coast, they bring heat that causes the glaciers to break up and melt.

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.

«Most of what's known about the bottom of the ocean has come from images shot miles up in the water column, and it's a relatively coarse data set,» Cameron said recently at roundtable discussion in New York City with WHOI scientists who design, build and operate manned and robotic deep - sea exploration vehicles.

The method consists of supplying bubbles of compressed air from a perforated pipe lowered in the water, which then rise, taking with them colder water from deeper in the ocean.

The urchins live on the Pacific coast of North America, where they often experience upwellings of carbon - dioxide - rich water from the deep ocean.

Now, new evidence from a marine sediment core from the deep Pacific points to warmer ocean waters around Antarctica (in sync with the Milankovitch cycle)-- not greenhouse gases — as the culprit behind the thawing of the last ice age.