Sentences with phrase «atlantic water currents»

The above linked site also has an erudite technical discussion thread concerning this week's report about the state of accuracy of understanding of central Atlantic water currents now reported as 1/3 less mobile than when last measured 50 years ago, with conjecture about possible climate interrelationships if the interpretation is verified; the beginning article is here and the full discussion thread here covering various parts of that ocean.

Not exact matches

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Hermine twisted hundreds of miles offshore in the Atlantic Ocean today, creating large waves in some southern New England beach waters that lured in surfers despite the rough surf and rip currents that kept most beachgoers away on the last day of the long holiday weekend.

The causes of the warming remain debated, but Liu and his team homed in on the melting glacial water that poured into oceans as the ice receded, paradoxically slowing the ocean current in the North Atlantic that keeps Europe from freezing over.

A system of ocean currents, popularly referred to as the «Great Ocean Conveyor,» brings warm waters to the North Atlantic.

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.

Levin says that the Pacific's deeper currents keep its waters less oxygenated than those of the Atlantic.

Velicogna and her colleagues also measured a dramatic loss of Greenland ice, as much as 38 cubic miles per year between 2002 and 2005 — even more troubling, given that an influx of fresh melt water into the salty North Atlantic could in theory shut off the system of ocean currents that keep Europe relatively warm.

The scientists are focusing on the Gulf of Mexico's Loop Current, which brings water from the gulf around Florida and up the Atlantic Coast.

The modeling suggests that when the key eddy remained connected to the current, water from the gulf reaches the Atlantic in roughly 70 days.

The study also found that the warming of the upper 300 meters (roughly 1,000 feet) of the Northwest Atlantic increases salinity due to a change in water mass distribution related to a retreat of the colder, fresher Labrador Current and a northerly shift of the warmer, saltier Gulf Stream.

The argument is that the increased separation of the Antarctic land mass from South America led to the creation of the powerful Antarctic Circumpolar Current which acted as a kind of water barrier and effectively blocked the warmer, less salty waters from the North Atlantic and Central Pacific from moving southwards towards the Antarctic land mass leading to the isolation of the Antarctic land mass and lowered temperatures which allowed the ice sheets to form.

Strong east - west currents, a possible island chain, and even the Congo River's enormous flow of fresh water might have helped cichlids across the South Atlantic, which was of course much narrower then.

The Gulf Stream, an ocean current that brings warm water from the equator toward the North Atlantic, has been credited with this observed variation in temperature for over a century.

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

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).

The thickness of the remaining, multi-year ice, along with its geographic location, will make it more difficult to melt than the ice that was spread across the Arctic, and exposed to Pacific and Atlantic ocean currents, along with runoff from fresh water rivers.

Sargassum comes from the Sargasso Sea in the middle of the Atlantic Ocean and is normally kept at bay by water temperatures and currents.

; — increasingly warm waters running into the area from Siberian rivers; — Atlantic currents becoming increasingly warm and making their way further into the Arctic (more an issue in the Svarlbard area than ESAS?)

In your opinion, how stable are the estimates of fresh water comming from Greenland and mixing with the North Atlantic Current?

I'm a fish geneticist so I won't bother commenting on «paleo - ocean current - ology», but it seems to me that glaciation would result in a reduction of fresh water inputs to the North Atlantic (during the ice age) and would therefore be quite different from the mechanism in question (which is related to early phases of global warming).

«Chris West, director of the UK climate impacts programme at Oxford University's centre for the environment, said: «The only way computer models have managed to simulate an entire shutdown of the current is to magic into existence millions of tonnes of fresh water and dump it in the Atlantic.

The deep water masses formed in this way are then exported out of the area in deep currents that eventually make up «North Atlantic Deep Water» (which also contains contributions from the Labrador Sea and entrainment of other water maswater masses formed in this way are then exported out of the area in deep currents that eventually make up «North Atlantic Deep Water» (which also contains contributions from the Labrador Sea and entrainment of other water masWater» (which also contains contributions from the Labrador Sea and entrainment of other water maswater masses).

He gained widest fame for his warning, derived from studies of past climate fluctuations, that great flows of fresh water from melting ice sheets could disrupt Atlantic Ocean currents and cause regional cooling (such an idea was caricatured in the Hollywood disaster film «The Day After Tomorrow «-RRB-.

Since it is well encased in Ice, I do not think that currents of warm water coing from the Atlantic could be to blame, but perhaps the Volcanism under the North Pole is more active than usual.

BUT Reversing the Atlantic ocean current due to fresh water ice melt, is a local phenomenon, not global AND it does little to reduce the slow steady heat / energy buildup globally — so warming will continue.

The opposite East Greenland Current brings cold, less salty water and lots of ice from the Arctic back into the Atlantic Ocean.

Vertical diffusion is slower, but happens over most of the oceans, while downward advection of anomalously warm water happens in fewer spots but is faster (the North Atlantic, «Mode» water formation regions north of the Antarctic Circumpolar Current, shelf water formation in Antarctica).

The same can be said about the inflow of warm saline waters of the NADC (north atlantic drift current, which is the extension of the Gulf Stream via the north atlantic current) into Nordic waters.

It's always worth remembering that the other end of the AMOC involves two main factors: (1) vorticity - mixing of heat from surface waters into the deep abyssal ocean (which decreases density causing the Atlantic Deep Water to start rising above the colder Antarctic Bottom Water) and (2) the wind - driven upwelling around the Antarctic Circumpolar Current.

We can check the current SST and see that this matches what is going on currently, except for the cold region near 50N 25W, which was there not too long ago, but has recently disappeared, so we appear to be in a phase of high deep - water convection in the North Atlantic.

The currents flowing across the sill bring warm Atlantic water into the polar sea, and although the net gain each year is tiny, over thousands of years it is enough to make the Arctic Ocean very much warmer.

This is not necessarily a contradiction to the other data series, because the two sediment cores used are located in the area of the deep outflow of Labrador Sea Water — but this is only one of two deep currents that together make up the southward part of the overturning circulation of the Atlantic, and thus the heat transport to the north.

The Atlantic Meridional Overturning Circulation, or AMOC, is a powerful conveyor - like current system that carries warm water north from the equator and sends cool water back down from the Arctic.

Click for more detail Thermohaline Change Evidence is growing that the thermohaline current may be slowed or stopped by cold fresh water inputs to the Arctic and North Atlantic oceans.

For example, water from the tropical and subtropical Atlantic (including some from the Gulf of Mexico) moves north through the Atlantic in a current popularly (if misleadingly) called the «Gulf Stream».

Climate Change, Deforestation, Biomes and Ocean Currents, Plankton, Endangered Species - Earth Web Site Click for more detail Thermohaline Change Evidence is growing that the thermohaline current may be slowed or stopped by cold fresh water inputs to the Arctic and North Atlantic oceans.

Most interesting is that the about monthly variations correlate with the lunar phases (peak on full moon) The Helsinki Background measurements 1935 The first background measurements in history; sampling data in vertical profile every 50 - 100m up to 1,5 km; 364 ppm underthe clouds and above Haldane measurements at the Scottish coast 370 ppmCO2 in winds from the sea; 355 ppm in air from the land Wattenberg measurements in the southern Atlantic ocean 1925-1927 310 sampling stations along the latitudes of the southern Atlantic oceans and parts of the northern; measuring all oceanographic data and CO2 in air over the sea; high ocean outgassing crossing the warm water currents north (> ~ 360 ppm) Buchs measurements in the northern Atlantic ocean 1932 - 1936 sampling CO2 over sea surface in northern Atlantic Ocean up to the polar circle (Greenland, Iceland, Spitsbergen, Barents Sea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly average

Based on GRACE satellite gravity estimates (illustrated in the graph below on the left) and hydrographic measurements (graph on right), Greenland's lost ice has correlated best with the pulses of warm Atlantic water that entered into the Irminger Current that flows to the west around Greenland, delivering relatively warm water to the base of Greenland's marine terminating glaciers.

The cold dry winds blowing eastward off Canada eagerly evaporate the warm surface water of the North Atlantic Current, and leave it heavy with excess salt.

Researchers have measured the inflow of warm Atlantic waters along a line between Scotland and the Irminger Sea (A. below) and have determined how that water was partitioned between flows entering the Irminger Current and the flows entering the basins that feed the Barents Sea.

13 Gyres Vertical columns or mounds of water at the surface and flow around them Produce enormous circular currents Five major locations: North Pacific - clockwise South Pacific - counterclockwise Indian Ocean - counterclockwise South Atlantic - counterclockwise North Atlantic - clockwise

The explanation of the that «incongruous» sea ice decline is very simple: Arctic warming is not caused by an imaginary AGW but by warm Gulf Stream water carried into the Arctic Ocean by North Atlantic currents.

The job is done by warm water flowing north from the tropics, variously called the Gulf Stream and, when nearing Ireland, the North Atlantic Current.

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.

In particular the Faroe Bank Channel overflow, Hornbanki section Atlantic inflow volume and heat fluxes, Labrador Sea western boundary current transport at 53 ° N, Wyville Thomson Ridge overflow transport, Faroe Shetland Channel volume fluxes of Atlantic Water, Denmark Strait overflow transport, Iceland - Faroes Atlantic inflow, Kogur Array freshwater flux.

The current was found to be leaking tropical warm water around the South African cape into the Atlantic.

Apparently, they traveled thousands of miles on Atlantic currents and ended up above Norway with an unusual — but naturally cyclic — pulse of warm water, not as a direct result of overall warming climate, say the researchers.

After entering the Atlantic Ocean, the surface waters join the wind - driven currents in the Atlantic, becoming saltier by evaporation under the intense tropical sun.

As seen in these illustrations, due to changes in the North Atlantic Oscillation in the 1990s, a sudden influx of warm Atlantic water entered the Irminger Current.