Sentences with phrase «in deep ocean currents»

A dramatic slowdown in deep ocean currents matches a major reset in Earth's ice ages about 1 million years ago, new evidence from the South Atlantic seafloor suggests.

Being denser than warm water it then sank and flowed out along the bottom of the ocean in deep ocean currents, eventually filling the depths of the ocean basins around the world.

Not exact matches

«Son of man, bathe yourself in the ocean of matter; plunge into it where it is deepest and most violent; struggle in its currents and drink of its waters.

When salty ocean water flows through the magnetic field, an electric current is generated and this, in turn, induces a magnetic response in the deep region below Earth's crust — the mantle.

Map of current land and ice separating the Weddell and Ross seas, courtesy of Wikimedia Commons / Wutsje / CIA Octopuses have made themselves at home in most of the world's oceans — from the warmest of tropical seas to the deep, dark reaches around hydrothermal vents.

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.

West coast salmon runs have been in decline for decades, stemming largely from the damming of rivers and the pollution throughout the fish's extensive range from freshwater mountain streams to deep offshore ocean currents.

The Southern Ocean plays a pivotal role in the global overturning circulation, a system of surface and deep currents linking all oceans and one of the fundamental determinants of the planet's climate.

Washington state is a bit ahead of that curve because ancient carbon stores in the deep ocean are periodically churned up by local currents.

Its measurements of ocean saltiness will also help scientists understand how changes in salinity affect the deep currents that drive ocean circulation.

Analysing new data from marine sediment cores taken from the deep South Atlantic, between the southern tip of South America and the southern tip of Africa, the researchers discovered that during the last ice age, deep ocean currents in the South Atlantic varied essentially in unison with Greenland ice - core temperatures.

The results, published in the journal Nature Geoscience, show how climate events in the Northern Hemisphere were tightly coupled with changes in the strength of deep ocean currents in the Atlantic Ocean, and how that may have affected conditions across the gocean currents in the Atlantic Ocean, and how that may have affected conditions across the gOcean, and how that may have affected conditions across the globe.

As changes happen in the polar regions, they are carried around the world by ocean currents, both at the surface and in the deep ocean.

Richard Thomson, a physical oceanographer at the Institute of Ocean Sciences in British Columbia who also did not take part in the work, says that deep - sea currents could be the driving factor behind the extreme variations in biology.

Arrays monitor circulating currents in the Atlantic Ocean, in which warm shallow waters move north (red), while cold deep waters move south (blue).

Gage and Gordon take issue with claims by Rudall Blanchard Associates, Shell's consultants, that the deep ocean «supports a small range of species»; that deep - water fishing does not take place in the area; and that water currents at the site are what atmospheric meteorologists would call «dead calm».

But in a new study in Nature, researchers show that the deep Arctic Ocean has been churning briskly for the last 35,000 years, through the chill of the last ice age and warmth of modern times, suggesting that at least one arm of the system of global ocean currents that move heat around the planet has behaved similarly under vastly different climOcean has been churning briskly for the last 35,000 years, through the chill of the last ice age and warmth of modern times, suggesting that at least one arm of the system of global ocean currents that move heat around the planet has behaved similarly under vastly different climocean currents that move heat around the planet has behaved similarly under vastly different climates.

When the Loop Current interacts with the shelf slope near the Dry Tortugas it can set the entire shelf in motion, bringing new nutrients onto the shelf from the deeper ocean.

With the removal of the warm surface waters, an upwelling current is created in the east Pacific Ocean, bringing cold water up from deeper levels.

In the abyssal realm, seafloor habitats under areas of deep - water formation (e.g., those in the North Atlantic and Southern Oceans) could experience a maximum decline in O2 concentration of 0.03 mL L — 1 by 2100 (i.e., a 0.5 % drop from current levels; Tables 2, 3; Figures 2, 3In the abyssal realm, seafloor habitats under areas of deep - water formation (e.g., those in the North Atlantic and Southern Oceans) could experience a maximum decline in O2 concentration of 0.03 mL L — 1 by 2100 (i.e., a 0.5 % drop from current levels; Tables 2, 3; Figures 2, 3in the North Atlantic and Southern Oceans) could experience a maximum decline in O2 concentration of 0.03 mL L — 1 by 2100 (i.e., a 0.5 % drop from current levels; Tables 2, 3; Figures 2, 3in O2 concentration of 0.03 mL L — 1 by 2100 (i.e., a 0.5 % drop from current levels; Tables 2, 3; Figures 2, 3).

Currents in the deep ocean exist because of changes in the density of sea water occurring at the surface.

Since deeper waters will be warmer, there is a possible link to the global ocean circulating currents that results in warmer water in polar regions.

Around the Antarctic Peninsula, changes in ocean currents, and in particular, changes in circumpolar deep water flowing onto the continental shelf, is melting ice shelves from below.

Halzen said the hazards of the deep ocean, including currents, could be even more difficult to overcome than the natural challenges in Antarctica.

In addition, seamounts rising into the ocean create obstacles that shape ocean currents and direct deep, nutrient - rich waters up the sloping sides of seamounts to the surface.

In an email chat, Yair Rosenthal of Rutgers University and Braddock Linsley of Columbia University, whose related work was explored here in 2013, said the Argo analysis appeared to support their view that giant subtropical gyres are the place where heat carried on currents from the tropics descends into the deeper oceaIn an email chat, Yair Rosenthal of Rutgers University and Braddock Linsley of Columbia University, whose related work was explored here in 2013, said the Argo analysis appeared to support their view that giant subtropical gyres are the place where heat carried on currents from the tropics descends into the deeper oceain 2013, said the Argo analysis appeared to support their view that giant subtropical gyres are the place where heat carried on currents from the tropics descends into the deeper ocean.

A lot of reseach energy is being devoted to the study of Methane Clathrates — a huge source of greenhouse gases which could be released from the ocean if the thermocline (the buoyant stable layer of warm water which overlies the near - freezing deep ocean) dropped in depth considerably (due to GHG warming), or especially if the deep ocean waters were warmed by very, very extreme changes from the current climate, such that deep water temperatures no longer hovered within 4C of freezing, but warmed to something like 18C.

The surface heat capacity C (j = 0) was set to the equivalent of a global layer of water 50 m deep (which would be a layer ~ 70 m thick over the oceans) plus 70 % of the atmosphere, the latent heat of vaporization corresponding to a 20 % increase in water vapor per 3 K warming (linearized for current conditions), and a little land surface; expressed as W * yr per m ^ 2 * K (a convenient unit), I got about 7.093.

i.e. changes in precipitation, vegetation, deep ocean currents, etc. are at any time as likely to cool as to heat.

They relate the current hiatus period at the surface and a deeper penetration of the warming into the ocean with changes in the trade winds on the subtropical Pacific (intensification).

(In real life I understand that mixing is the main agent of deeper warming in the ocean due to winds, currents, etc.) Only the top skin of water heats up and therefore lower warming must be by diffusion, or are convection cells within the water inevitablIn real life I understand that mixing is the main agent of deeper warming in the ocean due to winds, currents, etc.) Only the top skin of water heats up and therefore lower warming must be by diffusion, or are convection cells within the water inevitablin the ocean due to winds, currents, etc.) Only the top skin of water heats up and therefore lower warming must be by diffusion, or are convection cells within the water inevitable?

Half of that CO2 is removed from the atmosphere by rain in the Arctic and buried deep in the ocean by the descending leg of the THC (the Conveyor ocean current.)

Surface temperature is an imperfect gauge of whether the earth has been warmed by an imbalance between incoming radiation from the sun, and outgoing radiation, because of the role of ocean currents in the distribution of heat between deeper and surface waters.

Instead, they see a periodic slowdown in the vast turnover of oceanic currents as locking in CO2 into the deep oceans.

The resulting changes in ocean currents are part of the reason why more heat has gone deeper.

Either a big chunk of ice has been melting extraordinarily fast — which would cool the surrounding air — or somehow ocean currents would have changed in a way that favoured more rapid warming of deep water.

18 Deep Currents Deep currents are caused by differences in the density of oceaCurrents Deep currents are caused by differences in the density of oceacurrents are caused by differences in the density of ocean water.

19 Deep Water Currents Make up about 90 % of oceans» water Differences in density cause them to move.

While part of the tidal energy is dissipated on the coasts, another part turns into the circumpolar current and is ultimitely dissipated on the ocean floor, and that current could be reduced or eliminated if the Strait of Magellan froze deep, reducing the rate of deceleration and allowing the core to catch up a little (in its deceleration).

Enhanced north / south blocking patterns in periods of low solar activity enhance flow in the Peruvian and Californian Currents facilitating increased eastern Pacific upwelling of cold and nutrient rich water from the deep ocean.

Most of the deep ocean warming is occurring in the subtropical ocean gyres - vast rotating masses of water in each ocean basin where near - surface currents converge and are forced downward into the ocean interior.

They confirmed that the oceans have warmed substantially, most notably in the deeper layers, and that the strongest warming during this current negative IPO phase has been in the deep of the Southern and Atlantic Ooceans have warmed substantially, most notably in the deeper layers, and that the strongest warming during this current negative IPO phase has been in the deep of the Southern and Atlantic OceansOceans.

One of the rationales given by Chen & Tung for dismissing the role of the IPO in deep ocean warming is the expectation that the Pacific Ocean basin should have warmed more during the current (2000 - to present) IPO negative pocean warming is the expectation that the Pacific Ocean basin should have warmed more during the current (2000 - to present) IPO negative pOcean basin should have warmed more during the current (2000 - to present) IPO negative phase.

For example, because the mass balance argument says nothing about absolute numbers or attribution it may be that we are also — for example — destroying carbon - fixing plankton, reducing the breaking of waves and hence mechanical mixing with the upper ocean, releasing methane in the tundra which was previously held by acid rain and which can now be converted to CO2, or it may be we are just seeing a deep current, a tiny bit warmer than usual because of the MWP, heating deep ocean clathrate so that methanophage bacteria can devour it and give off CO2.

With the current emieeions and totals (~ 400 GtC since 1850), the real sink speed gives a half life time of CO2 in the atmosphere of about 40 years, mainly stored in the deep oceans.

The current total of 300 GtC human emissions adds less than 1 % to the carbon reservoir in the deep oceans, and ultimately that is all what returns if everything is back in equilibrium.

It then follows that we * MIGHT * actually be seeing the after effects of the Medieval warm period... Though I've read this wasn't a worldwide phenomena, though, it is likely that ocean current would have circulated the effect, and after 800 years, a localised heating of this type, might have an effect in all the deep ocean areas.

The clues found in sediments deposited during the late Holocene suggest that an ocean current that circles the southern polar region, known as Circumpolar Deep Water, flowed underneath the Cosgrove Ice Shelf and melted it.

New research examining how the Southern Ocean absorbs CO2 reveals that winds and currents create pathways for carbon to be stored in the deep ocean regOcean absorbs CO2 reveals that winds and currents create pathways for carbon to be stored in the deep ocean regocean regions.

Deep ocean currents occasionally push through the warm surface layer in the south eastern Pacific in one of the major areas for upwelling on the planet.