Not exact matches
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.
If you decouple that ice from where it's grounded — something that
currents of
warming water, already circulating around the Antarctic coast, could do — then
water could
flow beneath the inland ice and lubricate its slide into the ocean.
Increased
flow of the East Australian
Current, for example, has meant
waters south - east of the continent are
warming at two to three times the global average.
In Japan, Undaria grows fastest in the cold arctic
water that
flows past Japan in winter, but reproduces only in the
warm summer
currents.
That mismatch sets up
currents in the fluid, causing the soapy
water to stream from
warmer to colder regions, a process known as Marangoni
flow.
Hundreds of years ago, South American fishermen observed that every year around Christmas, coastal
waters of the Pacific became
warmer as a
current flowed from north to south.
The wet season sees the arrival of the Panama
Current, which
flows down from Central America to bring
warmer water and better
water clarity, along with sunnier skies.
The
current flows mainly mild with good
water clarity and
water temperature is always
warm 28 to 29 degrees C.
The study found that major hot spots for large marine predators are the California
Current, which
flows south along the U.S. west coast, and a trans - oceanic migration highway called the North Pacific Transition Zone, which connects the western and eastern Pacific on the boundary between cold sub-arctic
water and
warmer subtropical
water — about halfway between Hawaii and Alaska.
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.
Water from the melting ice makes the oceans rise, only a fraction of an inch a year but, in the fullness of time, enough to let the currents increase their flow over the northern sill, bringing ever more warm water into the gelid Ar
Water from the melting ice makes the oceans rise, only a fraction of an inch a year but, in the fullness of time, enough to let the
currents increase their
flow over the northern sill, bringing ever more
warm water into the gelid Ar
water into the gelid Arctic.
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.
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.
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.
El Ni o an irregular variation of ocean
current that, from January to February,
flows off the west coast of South America, carrying
warm, low - salinity, nutrient - poor
water to the south; does not usually extend farther than a few degrees south of the Equator, but occasionally it does penetrate beyond 12 S, displacing the relatively cold Peruvian
current; usually short - lived effects, but sometimes last more than a year, raising sea - surface temperatures along the coast of Peru and in the equatorial eastern Pacific Ocean, having disastrous effects on marine life and fishing
One of the consequences could be a disruption of major ocean
currents, particularly those
flowing north and south, circulating
warm water from the equator to polar regions and cold
water from the poles back to the equator.
Turbulent deep ocean
flows surface and set up wind and
current responses that again extend the cold tongue and piles
warm surface
water up against Australia and Indonesia.
By 1961 the oceanographer Henry Stommel was beginning to worry that these
warming currents might stop
flowing if too much fresh
water was added to the surface of the northern seas.
Atlantic Meridional Overturning Circulation A major
current in the Atlantic Ocean, characterized by a northward
flow of
warm, salty
water in the upper layers of the Atlantic, and a southward
flow of colder
water in the deep Atlantic.
As that
water sinks, it interacts with the
warm Gulf Stream
current flowing from the south.
We know where it starts — in the Arctic Ocean where
warm water brought there by
currents cools, sinks, and
flows south along the bottom until it reaches West Antarctic.
Around 55 million years ago, an abrupt global
warming event triggered a highly corrosive deep -
water current to
flow through the North Atlantic Ocean.
Reports from scientists monitoring the situation indicate that a chuck of ice the size of Manhattan (100 sq. kilometers) is about the fall off, with the suspected cause being at least partially to do with increasing
flows of
warm water moving up the coast due to the region's changing climate, New Scientist reports.Large chunks of ice break off the Petermann glacier all the time, but with a chunk this size breaking away — this 5 billion tons of ice is about half of the glacier's annual
flow — it's unlikely that
current rates of snowfall elsewhere on the glacier will be able to make up for it.
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.
The constant
flow of relatively
warmer surface
water that started in the mid 60s from the equitorial atlantic produced a net increase in arctic ice melt, thus a colder southward
current in the E Atlantic, giving the wrong impression of generalised cooling in the region.
«The constant
flow of relatively
warmer surface
water that started in the mid 60s from the equitorial atlantic produced a net increase in arctic ice melt, thus a colder southward
current in the E Atlantic»
Instead, she found that the key AMO features she identified are linked with the Atlantic Meridional Overturning Circulation, a major
current in which
warm, salty
water flows northward in the upper Atlantic while colder
water flows southward at greater depths.