Sentences with phrase «atlantic deep water formation»

Atlantic Deep Water formation — Cold, salty, deep water is produced in the North Atlantic, partly driving the global ocean circulation.

, 1985: North Atlantic Deep Water Formation.

Enormous amounts of freshwater were released into the North Atlantic following deglaciation, and an influx of freshwater into the North Atlantic Deep Water formation zone can potentially trigger abrupt climate changes.

This suggests that the associated changes in North Atlantic Deep Water formation and in the large - scale deposition of wind - borne iron in the Southern Ocean had limited impact on CO2.

The proximity of the present - day climate to the Stommel bifurcation point, beyond which North Atlantic Deep Water formation can not be sustained, varies from less than 0.1 Sv to over 0.5 Sv.

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.

Not exact matches

That lid of low - density water shut off the formation of deep water in the Atlantic.

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, 3).

This warming is largely focused on the equatorial and South Atlantic and is driven by a significant reduction in deep - water formation from the Southern Ocean.

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 North Atlantic.

The model also shows that the presence of seafloor anoxia, as suggested by black - shale deposition in the proto - North Atlantic Ocean before the event, might be the result of the silled shape and lack of deep - water formation of this basin at the Late Cretaceous.

A good way to estimate the effect of the thermohaline part of the heat transport is to shut it down by dumping a lot of freshwater into the north Atlantic in a climate model, which stops deep water formation there.

[Response: You're talking of cold events that are a response to massive freshwater influx to the Atlantic and a subsequent shut - down of deep water formation.

I contend that a likely trigger of the D - O events is the same sort of local break of an instability «cap» which initiates an intense episode of Deep Water formation — either in the North Atlantic or in the Antarctic seas (the latter is more likely the case in today's climate).

The GSA seems to have originated from a large discharge of ice from the Arctic to the key deep water formation regions of the North Atlantic.

Thus it appears that disruption of deep water formation in the North Atlantic, via a blob of colder fresher water coming off of Greenland, would not «shut down» or even affect the Gulf Stream net mass transport at all, but instead would shift its northern return flow southwards, with many severe regional consequences.

«Oxygen and Carbon Isotope Record of East Pacific Core V19 - 30: Implications for the Formation of Deep Water in the Late Pleistocene North Atlantic.»

We suggest that changes in the formation rate of North Atlantic Deep Water may have been a significant contributing factor.

The cooler Arctic then promoted formation of North Atlantic Deep Water (NADW in the upper frame of Figure 13) as salty Atlantic waters transported poleward cooled and brine rejection increased as more Arctic sea ice formed.

This suggests that these oscillations are caused by fluctuations in the formation rate of deep water in the northern Atlantic.

The observed variability of the western boundary current system will be related to the variability of the AMOC at the deep - water formation sites of the North Atlantic as well as the Agulhas region concerning the signal propagation within the AMOC.

Variability in the formation of North Atlantic deep water will lead to climatic change downwind from the northern North Atlantic; it will also influence other areas of the world ocean.

The system can weaken or shut down entirely if the North Atlantic surface - water salinity somehow drops too low to allow the formation of deep - ocean water masses.

The Atlantic annual formation of deep water has the volume of about one meter layer of surface water of the oceans based on a rapid calculation I made.

At mid-depth (500 to 2,000 m), the Atlantic and southern end of the Pacific section show widespread change, but the North Pacific signal is weaker and shallower because it has only weak intermediate water formation (and no deep water formation).

In RCP2.6, there is a complete recovery of the Atlantic overturning stream function by the year 2500 while with scenario RCP8.5, the E2 - R climate model produces a complete shutdown of deep water formation in the North Atlantic.

The influx could slow down or shut off the North Atlantic Deep Water (NADW) formation, the driving factor behind the conveyor belt current known as thermohaline circulation, which brings large amounts of warm water to the North Atlantic reWater (NADW) formation, the driving factor behind the conveyor belt current known as thermohaline circulation, which brings large amounts of warm water to the North Atlantic rewater to the North Atlantic region.

Salinity changes at subpolar North Atlantic are known to affect deep - water formation to initiate such an ocean circulation shift.

Salinity changes at subpolar North Atlantic are known to affect deep - water formation to initiate such an ocean circulation shift (25).

Red shading identifies the clockwise circulation associated with deep water formed in the North Atlantic, which is confined to shallower depths at the LGM; blue shading indicates counter-clockwise circulation associated with bottom - water formation around Antarctica.

Furthermore, the low - frequency variability in the SPG relates to the propagation of Atlantic meridional overturning circulation (AMOC) variations from the deep - water formation region to mid-latitudes in the North Atlantic, which might have the implications for recent global surface warming hiatus.»

MOCHA array — provide a means to evaluate intergyre connectivity within the North Atlantic and allow for a determination of how and whether deep water mass formation impacts overturning and poleward heat and freshwater transports throughout the North Atlantic.

Most LGM simulations with coupled models shift the deep - water formation in the North Atlantic southward, but large differences exist between models in the intensity of the Atlantic meridional overturning circulation.

The youngest bottom water is in the north Atlantic near a major area of deep water formation and it is 300 years old.

As a result, the fast and slow responses are nearly opposite to each other in spatial pattern, especially over the subpolar North Atlantic / Southern Ocean regions of the deep - water / bottom - water formation, and in the interhemispheric SST gradient between the southern and northern subtropics.

It has been fairly well understood for quite some time that reduced deep water formation in the North Atlantic (due to freshening surface waters) will not plunge Europe into a new Ice Age.

With the use of a climate model of intermediate complexity, we demonstrate that with mwp - 1A originating from the Antarctic Ice Sheet, consistent with recent sea - level fingerprinting inferences, the strength of North Atlantic Deep Water (NADW) formation increases, thereby warming the North Atlantic region and providing an explanation for the onset of the Bølling - Allerød warm interval.

This is consistent with stronger light limitation associated with a deeper summer surface mixed layer, perhaps related to the formation of Glacial North Atlantic Intermediate Water previously suggested to have occurred near the core site.