To answer this question, large ensemble simulations of regional climate models will be carried out for an East Asian domain for two worlds: (1) Real world condition for which the observed sea surface temperatures will be prescribed and (2) Counter-factual world condition for which we will use adjusted sea surface temperatures obtained by removing human - induced
ocean warming patterns.
This analysis by Sedláček & Knutti (2012) does not attempt to connect modelled and observed
ocean warming patterns with human activity, but does demonstrate that natural variability is incompatible with the warming in the 20th century simulations, and with historical observations.
First is
the ocean warming pattern in the top 100 metres of ocean shown in panel 3 (a).
Not exact matches
Science questions the answers, e.g. hurricanes are caused by
warm moist
ocean air being drawn up into the cooler atmosphere and creating a wind
pattern though we are still open to consider other factors that may have influence on this cycle.
Latest Forecast Suggests «Godzilla El Niño» May Be Coming to California: The strengthening El Niño in the Pacific
Ocean has the potential to become one of the most powerful on record, as warming ocean waters surge toward the Americas, setting up a pattern that could bring once - in - a-generation storms this winter to drought - parched Californ
Ocean has the potential to become one of the most powerful on record, as
warming ocean waters surge toward the Americas, setting up a pattern that could bring once - in - a-generation storms this winter to drought - parched Californ
ocean waters surge toward the Americas, setting up a
pattern that could bring once - in - a-generation storms this winter to drought - parched California...
The floods have been triggered by the weather event known as El Nino, a
warming of surface temperatures in the Pacific
Ocean that wreaks havoc on weather
patterns every few years.
Those weather
patterns are linked to
warmer surface temperatures in the Pacific and Atlantic
oceans, respectively, and correlated with the timing of observed floods on the lower Mississippi.
They identified wind
patterns that mixed the
warmer surface and colder deep waters to cool the
ocean's surface and reduce the intensity of the storm.
This
pattern is consistent with greenhouse gas — induced
warming by the overlying atmosphere: the
ocean warms more slowly because of its large thermal inertia.
While natural
patterns of certain atmospheric and
ocean conditions are already known to influence Greenland melt, the study highlights the importance of a long - term
warming trend to account for the unprecedented west Greenland melt rates in recent years.
The researchers identified several key circulation
patterns that affected the winter temperatures from 1979 to 2013, particularly the Arctic Oscillation (a climate
pattern that circulates around the Arctic
Ocean and tends to confine colder air to the polar latitudes) and a second
pattern they call
Warm Arctic and Cold Eurasia (WACE), which they found correlates to sea ice loss as well as to particularly strong winters.
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.
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.
It is possible, he adds, that these persistent high - pressure zones may be produced by two well - known oceanographic
patterns: La Nina and El Nino in the Pacific
Ocean (which mark alterations in warmer and cooler conditions between that ocean's eastern and western equatorial waters) and the North Atlantic Oscillation (which results from weather patterns between Iceland and the Azo
Ocean (which mark alterations in
warmer and cooler conditions between that
ocean's eastern and western equatorial waters) and the North Atlantic Oscillation (which results from weather patterns between Iceland and the Azo
ocean's eastern and western equatorial waters) and the North Atlantic Oscillation (which results from weather
patterns between Iceland and the Azores).
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.
The oscillation is a
pattern of climate variability akin to El Niño and La Niña — weather
patterns caused by periodic
warming and cooling of
ocean temperatures in the Pacific — except it is longer - lived.
At a global scale, the increased melting of the ice sheet contributes to rising sea level and may impact global
ocean circulation
patterns through the so - called «thermohaline circulation'that sustains among others, the Gulf Stream, which keeps Europe
warm.
The next step was see how those factors were influenced by ENSO; while El Niños and La Niñas are defined by how much
warmer or colder than normal tropical Pacific
ocean waters are, they trigger a cascade of reactions in the atmosphere that can alter weather
patterns around the globe.
Another principal investigator for the project, Laura Pan, senior scientist at the National Center for Atmospheric Research in Boulder, Colo., believes storm clusters over this area of the Pacific are likely to influence climate in new ways, especially as the
warm ocean temperatures (which feed the storms and chimney) continue to heat up and atmospheric
patterns continue to evolve.
The El Nino weather
pattern is a
warming of
ocean surface temperatures in the eastern and central Pacific and usually brings hot, dry, and often drought conditions to Australia.
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.
And yet the best models had called for a quiet season because it was a year of El Niño, a recurring
pattern of
warm water in the eastern Pacific
Ocean.
Unusually
warm ocean temperatures, referred to as «the Blob,» encompassed much of the West Coast beginning about 2014, combining with an especially strong El Nino
pattern in 2015.
Climate models do not predict an even
warming of the whole planet: changes in wind
patterns and
ocean currents can change the way heat is distributed, leading to some parts
warming much faster than average, while a few may cool, at least at first.
As a result of atmospheric
patterns that both
warmed the air and reduced cloud cover as well as increased residual heat in newly exposed
ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Survey.
«There are characteristic
patterns of increase and decrease, for example, in response to an El Nino event,» which is a cyclical climate event marked by
warming waters in the western Pacific
Ocean that has global impacts, Zwiers says.
El Niño — a
warming of tropical Pacific
Ocean waters that changes weather
patterns across the globe — causes forests to dry out as rainfall
patterns shift, and the occasional unusually strong «super» El Niños, like the current one, have a bigger effect on CO2 levels in the atmosphere.
During the past 11,000 years, wind
patterns have pushed
warm waters from the deep
ocean onto Antarctica's continental shelf
New findings link rising
ocean temperatures off the northern coast of Brazil to changing weather
patterns: As the Atlantic
warms, it draws moisture away from the forest, priming the region for bigger fires.
Most people in the general public now know the term, and they have a vague idea that it is some kind of
pattern in the Pacific
Ocean that means the U.S. will have a
warm winter... or snowy winter... or hot summer — or something.
They showed that temperatures
warmed in both the North Pacific and Greenland, likely due to changes in
ocean circulation
patterns.
The north - south gradient of increasing glacier retreat was found to show a strong
pattern with
ocean temperatures, whereby water is cold in the north - west, and becomes progressively
warmer at depths below 100m further south.
The report found that
ocean warming is affecting a multitude of
ocean processes, including breeding and migration
patterns of
ocean species such as plankton, whales and fish.
the Arctic has shown a
pattern of strong low - level atmospheric
warming over the Arctic
Ocean in autumn because of heat loss from the ocean back to the atmospher
Ocean in autumn because of heat loss from the
ocean back to the atmospher
ocean back to the atmosphere....
The findings, published yesterday in the journal Nature, show that during the past 11,000 years, wind
patterns have driven relatively
warm waters from the deep
ocean onto Antarctica's continental shelf, leading to significant and sustained ice loss.
Regional trends are notoriously problematic for models, and seems more likely to me that the underprediction of European
warming has to do with either the modeled
ocean temperature
pattern, the modelled atmospheric response to this
pattern, or some problem related to the local hydrological cycle and boundary layer moisture dynamics.
For the change in annual mean surface air temperature in the various cases, the model experiments show the familiar
pattern documented in the SAR with a maximum
warming in the high latitudes of the Northern Hemisphere and a minimum in the Southern
Ocean (due to ocean heat uptak
Ocean (due to
ocean heat uptak
ocean heat uptake)(2)
In the lower left panel of Figure 1, which shows temperature trends since 1979, the
pattern in the Pacific
Ocean features
warming and cooling regions related to El Niño.
The observed
patterns of
warming, including greater
warming over land than over the
ocean, and their changes over time, are only simulated by models that include anthropogenic forcing.
However, if one downweights these two events (either by eliminating or, as in Cane et al» 97, using a «robust» trend), then an argument can be made for a long - term
pattern which is in some respects more «La Nina» - like, i.e. little
warming in the eastern and central equatorial Pacific, and far more
warming in the western equatorial Pacific and Indian
oceans, associated with a strengthening, not weakening, of the negative equatorial Pacific zonal SST gradient.
«We detected a specific
pattern of
ocean cooling south of Greenland and unusual
warming off the US coast — which is highly characteristic for a slowdown of the...
«Drought years» happen on average every five years in the Amazon and are typically a result of changes to wind and weather
patterns brought about by
warming in the Atlantic
Ocean during events of the climate phenomenon El Niño.
I wonder if the
warm and cold water masses could be considered a
Ocean blocking
pattern, and btw Hansen etal.
«The
warming of the northeastern Pacific
Ocean in 2013 and 2014 was due to persistent wind and weather
patterns.
Computer models reveal that exoplanets with very saline
oceans could have circulation
patterns opposite to that on Earth, resulting in dramatic
warming of their polar regions, possibly extending their range of habitability.
And the researchers say: «The projected
ocean surface
warming pattern under increasing greenhouse gas forcing suggests that typhoons striking eastern mainland China, Taiwan, Korea and Japan will intensify further.
Cai, W.J., and P.H. Whetton, 2000: Evidence for a time - varying
pattern of greenhouse
warming in the Pacific
Ocean.
While not nearly as dramatic, the influence of solar,
ocean, and wind
patterns is much more immediate, but these effects generally alternate between
warming and cooling over the course of months to decades in relation to their respective cycles.
El Niño is a Pacific - driven climate
pattern that features
warmer - than - normal sea surface temperatures in the eastern tropics of that
ocean basin.
... Discernible human influences now extend to other aspects of climate, including
ocean warming, continental - average temperatures, temperature extremes, and wind
patterns The ASA endorses the IPCC conclusions