Sentences with phrase «ocean water circulation»

Not exact matches

The pattern the water circulation forms in that region is called the Indian Ocean Gyre, one of five of the major ocean gyres of the world that scientists have identified soOcean Gyre, one of five of the major ocean gyres of the world that scientists have identified soocean gyres of the world that scientists have identified so far.

The Atlantic Ocean surface circulation is an important part of the Earth's global climate, moving warm water from the tropics towards the poles.

That question is central to understanding the effects of ice sheet melting on ocean water properties, circulation, and biological systems, on scales from local to basinwide.

This trade wind strengthening, which occurs during a the negative phase of a phenomenon called the Interdecadal Pacific Oscillation (also known as the Pacific Decadal Oscillation), pushes warm water westward and and changes Pacific Ocean circulation.

The fresh water added to the ocean by these melting icebergs may have changed ocean circulation and climate.

But research published yesterday in the journal Nature rebuts this idea, suggesting that it was changes in ocean circulation, not winds, that predominantly led the deep water to surface near Antarctica and exhale carbon dioxide to the atmosphere.

Both processes occur in regions of the ocean that are naturally low in oxygen, or anoxic, due to local lack of water circulation and intense phytoplankton productivity overlying these regions.

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.

These large Northern Hemisphere cooling events have previously been linked to a change in the Atlantic Ocean circulation that led to a reduced transport of warm water to the high latitudes in the North.

The simulations suggest that over decades, these warming events dramatically perturb the ocean surface, affecting the flow of the Atlantic Meridional Overturning Circulation, a system of currents that acts like a conveyor belt moving water around the planet.

Ongoing changes in ocean circulation patterns, which are helping to drive warm water from other parts of the sea closer to the Antarctic continent, are also believed to be a major factor.

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.

One idea, for example, was that the formation of the Isthmus of Panama, the narrow strip of land linking North and South America, could have altered ocean circulations during the Pliocene, forcing warmer waters toward the Arctic.

The Malaspina Expedition, led by the Spanish National Research Council, has demonstrated that there are five large accumulations of plastic debris in the open ocean that match with the five major twists of oceanic surface water circulation.

This would shut down a global ocean circulation system that is driven by dense, salty water falling to the bottom of the north Atlantic and that ultimately produces the Gulf Stream.

Retreating sea ice in the Iceland and Greenland Seas may be changing the circulation of warm and cold water in the Atlantic Ocean, and could ultimately impact the climate in Europe, says a new study by an atmospheric physicist from the University of Toronto Mississauga (UTM) and his colleagues in Great Britain, Norway and the United States.

From the ocean, the fresh water flows into the Greenland fjords where is influence local circulation with impacts on the production and ecosystem structure.

A new study has found that turbulent mixing in the deep waters of the Southern Ocean, which has a profound effect on global ocean circulation and climate, varies with the strength of surface eddies — the ocean equivalent of storms in the atmosphere — and possibly also wind spOcean, which has a profound effect on global ocean circulation and climate, varies with the strength of surface eddies — the ocean equivalent of storms in the atmosphere — and possibly also wind spocean circulation and climate, varies with the strength of surface eddies — the ocean equivalent of storms in the atmosphere — and possibly also wind spocean equivalent of storms in the atmosphere — and possibly also wind speeds.

«Hydrothermal siphon» drives water circulation through seafloor: New study explains previous observations of ocean water flowing through the seafloor from one seamount to another.»

The deepening of the Drake Passage resulted in a change in ocean circulation that resulted in warm waters being directed northwards in circulation patterns like those found in the Gulf Stream that currently warms northwestern Europe.

Climatologists have suggested that the winds, known as the Greenland tip jet, could be a key force in driving the world's climate and the global ocean circulation by pushing cold, dense water to the ocean floor and triggering the thermohaline circulation.

Salinity of the surface waters can be influenced by the amount of river water flowing into the oceans, yet no computer models of ancient ocean circulation had included this variable.

The resulting cold, dense water sinks and moves northwards, forming an important part of the global circulation of ocean water.

«If these waters no longer sink, it could have far reaching affects for global ocean circulation patterns.»

«Antarctic bottom waters freshening at unexpected rate: Shift could disturb ocean circulation and hasten sea level rise, researchers say.»

«These waters are thought to be the underpinning of the large - scale global ocean circulation,» said Macdonald, a WHOI senior research specialist and the study's co-author.

In a paper published January 25 in Science Advances, a team led by WHOI oceanographers Viviane Menezes and Alison Macdonald report that Antarctic Bottom Water (AABW) has freshened at a surprising rate between 2007 and 2016 — a shift that could alter ocean circulation and ultimately contribute to rising sea levels.

Collision of climate variants One, called the negative phase of the Indian Ocean Dipole, is an atmospheric circulation in the tropical Indian Ocean that transports water from west to east.

Ocean circulation drives the movement of warm and cold waters around the world, so it is essential to storing and regulating heat and plays a key role in Earth's temperature and climate.

The scientists — whose names are secret — plan to map the ice pack and the ocean floor beneath it, monitor patterns of ocean circulation and analyse water samples for evidence of pollution.

Known as the Antarctic Bottom Waters (AABW), these deep, cold waters play a critical role in regulating circulation, temperature, and availability of oxygen and nutrients throughout the world's oceans.

Prevailing scientific wisdom asserts that the deceleration of circulation diminishes the ocean's ability to absorb anthropogenic CO2 from the atmosphere as surface waters warm and become saturated with CO2.

«The weaker overturning circulation brings less naturally CO2 - rich deep waters to the surface, which limits how much of that gas in the deep ocean escapes to the atmosphere.

The researchers plugged that trash census data into ocean models, which simulate the circulation of the world's waters.

The equatorial Pacific gets its nutrients from the Antarctic Ocean, carried on a water circulation called the «subantarctic mode water.»

For decades, research on climate variations in the Atlantic has focused almost exclusively on the role of ocean circulation as the main driver, specifically the Atlantic Meridional Overturning Circulation, which carries warm water north in the upper layers of the ocean and cold water south in lower layers like a large concirculation as the main driver, specifically the Atlantic Meridional Overturning Circulation, which carries warm water north in the upper layers of the ocean and cold water south in lower layers like a large conCirculation, which carries warm water north in the upper layers of the ocean and cold water south in lower layers like a large conveyor belt.

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.

The thermohaline circulation of the global ocean is controlled in part by freshwater inputs to northern seas that regulate the strength of North Atlantic Deep Water formation by reducing surface seawater density.

«These results will have wider reaching implications, such as how we map the circulation of the world's oceans in the past, which are affected by how quickly the sea floor is moving up and down and blocking the path of water currents,» said Hoggard.

There is also a contribution of excess atmospheric CO2 absorption introduced to deep - water masses from dense, cold CO2 - rich surface waters at downwelling sites (e.g., North Atlantic), which then move through the oceans via meridional overturning circulation.

Presently, much of the Atlantic Ocean is well oxygenated (Figure 1) relative to the North Indian and Pacific Oceans, where bottom water O2 concentrations are lower because of the biological removal of O2 as thermohaline circulation moves deep waters across ocean basins from the North and South Atlantic towards the North Pacific, in isolation from the surface oOcean is well oxygenated (Figure 1) relative to the North Indian and Pacific Oceans, where bottom water O2 concentrations are lower because of the biological removal of O2 as thermohaline circulation moves deep waters across ocean basins from the North and South Atlantic towards the North Pacific, in isolation from the surface oocean basins from the North and South Atlantic towards the North Pacific, in isolation from the surface oceanocean.

In an ensemble of fully coupled atmosphere - ocean general circulation model (AOGCM) simulations of the late Paleocene and early Eocene, we identify such a circulation - driven enhanced intermediate - water warming.

Atmospheric circulation, temperature, water vapour, and clouds are examined; as well as ocean temperature anomalies, currents, and behaviour are discussed.

Tina van de Flierdt from the Department of Earth Science and Engineering at Imperial College London is an international leader in the use of geochemical proxies — particularly neodymium (Nd)-- for reconstructing past ocean circulation, water masses and weathering.

For years, perhaps decades, Gray has been ascribing all sorts of climate changes and hurricane cycles to fluctuations in the Thermohaline Circulation (THC), an overturning circulation in the Atlantic ocean associated with formation of deep water in the NortCirculation (THC), an overturning circulation in the Atlantic ocean associated with formation of deep water in the Nortcirculation in the Atlantic ocean associated with formation of deep water in the North Atlantic.

Are you saying that ocean circulation patterns in the Northern Hemisphere do not reach Antarctic regions where ice is more in the water?

Significant changes in the circulation of the ocean could likewise impact fisheries in the United States that can be devastated by warming waters, thereby affecting livelihood and food source.

Ice shelves are important, because they play a role in the stability of the Antarctic Ice Sheet and the ice sheet's mass balance, and are important for ocean stratification and bottom water formation; this helps drive the world's thermohaline circulation.

Aquarius Communications and Public Engagement (CPE) provides content on salinity, ocean circulation, the water cycle and climate for educational purposes.

A water based system doesn't achieve much, as the oceans participate in weather and climate, but aren't the primary driving forces, which are global atmospheric circulation patterns and greenhouse gases etc..