After further analysis of the data, the scientists found that although a strong El Niño changes wind patterns in West Antarctica in a way that promotes
flow of warm ocean waters towards the ice shelves to increase melting from below, it also increases snowfall particularly along the Amundsen Sea sector.
Not exact matches
Warm water
flowing through the Indonesian archipelago from the Pacific to the Indian
Ocean influences the climate
of the surrounding regions.
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.
«The new data set will allow us to check if our
ocean models can correctly represent changes in the
flow of warm water under ice shelves,» he added.
Some glaciers on the perimeter
of West Antarctica are receiving increased heat from deep,
warm ocean currents, which melt ice from the grounding line, releasing the brake and causing the glaciers to
flow and shed icebergs into the
ocean more quickly.
Changes in
flow patterns
of warm Pacific
Ocean air from the south were driving earlier spring snowmelt, while decreasing summer sea ice had the greatest influence on later onset
of snowpack in the fall.
But now, a vulnerable glacier on the other side
of the island, part
of a massive
flow of ice known as the Northeast Greenland Ice Stream, shows that yet another region
of Greenland is feeling the effects
of warming oceans.
Now,
warming seawater intruding underneath has loosened the glaciers» grip on bedrock, speeding their
flow toward the sea and causing increasing amounts
of ice to break off into the
ocean.
«Hurricanes almost always form over
ocean water
warmer than about 80 degrees F. in a belt
of generally east - to - west
flow called the trade winds.
As global
warming affects the earth and
ocean, the retreat
of the sea ice means there won't be as much cold, dense water, generated through a process known as oceanic convection, created to
flow south and feed the Gulf Stream.
The
warm ocean water presently melting Totten Glacier — East Antarctica's largest glacier, which
flows from the Aurora Basin — could be an early warning sign, said co-lead author Amelia Shevenell, an associate professor in the University
of South Florida College
of Marine Science.
A low - altitude
flow of warm, moist air from an
ocean area combined with a
flow of cold, dry polar air high up creates maximum instability, which means that parcels
of air heated near the surface rise rapidly, creating powerful updrafts.
«As more freshwater
flows into the Arctic
Ocean due to global
warming, I think we are going to see it become more brackish,» said Eberle, also curator
of fossil vertebrates at the University
of Colorado Museum
of Natural History.
Co-author Dr Ivan Haigh, lecturer in coastal oceanography at the University
of Southampton and also based at NOCS, adds: «Historical observations show a rising sea level from about 1800 as sea water
warmed up and melt water from glaciers and ice fields
flowed into the
oceans.
Increased
warming of the cool skin layer (via increased greenhouse gases) lowers its temperature gradient (that is the temperature difference between the top and bottom
of the layer), and this reduces the rate at which heat
flows out
of the
ocean to the atmosphere.
Once heated, the
ocean surface becomes
warmer than the atmosphere above, and because
of this heat
flows from the
warm ocean to the cool atmosphere above.
In today's
ocean,
warm, salty surface water from the Caribbean, the Gulf
of Mexico, and the equatorial Atlantic
flows northward in the Gulf Stream.
The same concept applies to the cool skin layer -
warm the top
of the layer and the gradient across it decreases, therefore reducing heat
flowing out
of the
ocean.
Adding further greenhouse gases to the atmosphere
warms the
ocean cool skin layer, which in turn reduces the amount
of heat
flowing out
of the
ocean.
The
warm Indian
Ocean flows across this wonderful coastline providing it with an abundance
of beautiful tropical fish and coral reefs.
A sea breeze, which is caused by the temperature and pressure difference between
warm areas inland and the cool air over the
ocean, often develops on
warm summer days as well, increasing the on - shore
flow pattern and maintaining a constant
flow of marine stratus clouds onto the coastal areas.
There are two distinct environment zones, the
warmer clearer north and the cooler south, resulting from the north to south
flow of water from the Pacific into the Indian
Ocean.
«Borehole temperatures in the ice sheets spanning the last 6000 years show Antarctica repeatedly
warming when Greenland cooled, and vice versa... The phenomena has been called the polar see - saw... Attempts to account for it have included the hypothesis
of a south -
flowing warm ocean current with a built in time lag... There is (however) no significant delay in the Anarctica climate anomaly...
Eventually the
flow diminishes and even if it did, the effect
of CO2 persists for thousands
of years — plenty
of time to
warm the entire
ocean.
There was an interesting study in Nature Geoscience last Sunday showing pretty clearly that the accelerating
flow of the Jacobshavn glacier in recent years was most likely driven by an influx
of warm deep seawater, and that shift was likely due to changes in pressure and wind patterns over the North Atlantic
Ocean.
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 Arctic.
eadler2 January 10, 2015 at 5:54 pm ... When
ocean surface temperatures cool, due to a La Nina, the
warmer surface water is mixed deeper into the
ocean and cooler
ocean water
flows along the surface
of the Pacific.
Increased melting in the
warmer summer is causing the internal drainage system
of the ice sheet to accommodate more melt - water, without speeding up the
flow of ice toward the
oceans, the journal Nature reports.
When
ocean surface temperatures cool, due to a La Nina, the
warmer surface water is mixed deeper into the
ocean and cooler
ocean water
flows along the surface
of the Pacific.
As you say, the net
flow of energy is always between a
warmer ocean surface and a colder atmosphere.
It is proposed by Realclimate that the extra down welling infrared radiation
warms up that top single millimetre layer (they call it the
ocean «skin») a tiny bit and apparently that is enough to disrupt the worldwide
flow of heat energy from
ocean to air to space with the result that the
oceans release incoming solar energy more slowly so that heat builds up in the
oceans.
The Atlantic overturning is driven by the differences in the density
of the
ocean water: when the
warm, lighter water
flows from south to north it becomes colder, denser and heavier, making it sink deeper and
flow back southwards.
When cold, dense water
of the polar regions sinks and
flows beneath
warmer ocean water.
The wild exaggerations
of both the direct CO2
warming and the supposedly more serious knock - on
warming are rooted in an untruth: the falsehood that scientists know enough about how clouds form, how thunderstorms work, how air and
ocean currents
flow, how ice sheets behave, how soot in the air behaves.
Such a change will accelerate the
flow of heat energy from the
ocean surface to the atmosphere and offset any
warming of the «skin» from any extra CO2 caused by humans.
A «winter snow storm» from a
flow of moisture that originated over record
warm ocean temperatures
of the Pacific.
A recent, widely publicized research study has suggested that the
ocean's «thermohaline» circulation that keeps the Earth's north polar region
warmed by the
flow of tropical water northward could suddenly shut down.
In the real world the most obvious and most common reason for an increase in the speed
of energy
flow through the system occurs naturally when the
oceans are in
warm surface mode and solar input to the
oceans due to reduced global albedo is high as apparently occurred during the period 1975 to 1998.
The
warming is not homogeneous, and further proof that it is not the atmosphere
warming the
ocean directly, but GH gas concentrations altering the
flow of energy out
of the
ocean.
In northern latitudes during winter areas like Europe would much more affected by
ocean warming - one would tropical like conditions during the winter in regions currently strongly affected by warmth
of gulf stream - though the
flow of gulf stream would greatly diminished, the
ocean temperature would be significantly increased.
The global temperature switches from cooling to
warming mode frequently as a result
of the ever changing interplay between variations in solar influence and intermittent heat
flows from the
oceans.
«If it also has heat
flowing into rather than out
of the
oceans during the growth
of the
warm phase
of this mode,»
If it also has heat
flowing into rather than out
of the
oceans during the growth
of the
warm phase
of this mode, that would be even more dramatic news.
Natural variability might modulate the
flow of energy between parts
of the system, such as from
ocean to atmosphere, but the «pace
of climate
warming», as in the general gain in energy (or loss
of energy)
of the entire climate system, can only be dictated by some external forcing, such as somthing that changes the amount
of solar radiation reaching the surface, volcanoes, or changes in GH gas concentrations.
Did
warming of the earth ever start, or was it just a variation in the
flow of energy between
ocean and atmosphere?
Form as cold, dense water
of the polar regions sinks and
flows beneath
warmer ocean water.
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 fi
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 fi
Ocean, having disastrous effects on marine life and fishing
Have no idea who the «climate clique» is, but the greater energy storage capacity and greater thermal inertia
of the
oceans combined with the fact that net heat
flow is always from
oceans to atmosphere would dictate that the
oceans would show more consistent long - term
warming than the atmosphere.