Sentences with phrase «circulation pattern which»

In this configuration the air will stabalise into a circulation pattern which can be measured for flow velocity and represents the energy flows from hot to cold via air thermal changes.

Climate models show the absence of a global atmospheric circulation pattern which bolsters high ocean temperatures key to coral bleaching

«Unabated climate change will probably further weaken summer circulation patterns which could thus aggravate the risk of heat waves,» says co-author Jascha Lehmann «Remarkably, climate simulations for the next decades, the CMIP5, show the same link that we found in observations.

These climate indices are correlated with population dynamics [8], [9] because they reflect atmospheric circulation patterns which regulate large scale oceanographic processes and ecosystem productivity [10], [11].

From what I can tell from the outputs of the GCM's we see general circulation patterns which would suggest areas of the planet would be warmer, but not a lot else of real value to the issue of impact on humanity.

«A research team... primarily made up of scientists from the U.K.'s Hadley Centre Met Office have identified a fairly strong solar signal in Northern Hemisphere winter circulation patterns which are manifest over Europe and the eastern United States.

Not exact matches

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.

They also knew the behavior of the troposphere influences the circulation patterns of the oceans, which, in turn, drive climate.

Mori et al. identified two circulation patterns that drove winter temperatures in Eurasia from 1979 to 2013: the Arctic Oscillation (which confines colder air to the polar latitudes) and a pattern dubbed «Warm Arctic and Cold Eurasia» (WACE), which correlated both to sea - ice loss in the Barents - Kara Sea and to particularly cold winters; its impact has more than doubled the probability of severe winters in central Eurasia.

Co-author Professor Jonathan Bamber, based at the University of Bristol, and President of the European Geoscience Union (EGU), added: «We are seeing changes in the large - scale circulation patterns, which leads to more frequent sunshine and higher amounts of solar energy reaching the surface of the ice sheet.

«We think, but have not yet been able to establish, that this is connected to independently observed poleward expansion of the Hadley circulation,» Emanuel says, referring to a large - scale pattern of global winds, which in recent years has also moved further poleward.

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.

Francis has hypothesized that the warming Arctic is altering global circulation patterns, which could make the warm west — cold east pattern more common.

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.

He believes that no one has thought of combining the two theories before because it's not an intuitive idea to look at how the effects of changing patterns of ocean circulation, which occur on time scales of thousands of years, would effect global silicate weathering, which in turn controls global climate on time scales of 100s of thousands of years.

«Our future studies will look to compare the role of the AMO compared to Arctic sea ice anomalies, which have also been shown to affect atmospheric circulation patterns and promote colder, more extreme winters.»

They will look for evidence of temperature changes caused by ocean circulation patterns in both the North Atlantic and tropical Pacific Oceans, which drive precipitation in Tibet as well as the Indian monsoons.

[Response: Well, something like a circulation changed forced by the NAO pattern (which may in turn be affected by greenhouse gases) might cause an increase in European air temperatures, which in turn would allow low level moisture to increase if there is enough moisture supply, which would then constitute an amplification of a signal driven remotely.

For example, in Earth atmospheric circulation (such as Hadley cells) transport heat between the warmer equatorial regions to the cool polar regions and this circulation pattern not only determines the temperature distribution, but also sets which regions on Earth are dry or rainy and how clouds form over the planet.

That shift alters where heat from those waters is released into the atmosphere, which in turn knocks circulation patterns out of whack, creating a cascade around the planet.

A water based system doesn't achieve much, as the oceans participate in weather and climate, but aren't the primary driving forces, which are global atmospheric circulation patterns and greenhouse gases etc..

Although most aerosols are carried up by the same atmospheric circulation patterns, their chemical and physical properties determine whether or not they become «cloud condensation nuclei,» which are the points around which droplets form before they become cloud droplets.

A pattern of precisely directed strokes and pressure are utilized to emphasize lymphatic drainage and blood circulation, which enhances ligament stabilization, detoxification, and toning of the uterus and surrounding tissues.

The program will address the role of artists, curators and other art professionals in an increasingly borderless world, investigating the ways in which artistic practices, curatorial strategies and critical commentary have been reconfigured by intensified patterns of global circulation.

My point, which I hope you would likewise concede, is that even with a weakened or shut - off THC, western Europe would still remain warm relative to other land masses at the same latitudes (possibly even warmer than British Columbia, as it is now), based primarily on atmospheric circulation patterns.

The other factor of course is the extent to which wine growing in England in the so - called MWP was an indication of a warmer Earth during this period or a small shift in the temperature distribution of the Earth due to ocean circulation patterns and suchlike.

A water based system doesn't achieve much, as the oceans participate in weather and climate, but aren't the primary driving forces, which are global atmospheric circulation patterns and greenhouse gases etc..

The most interesting thing for me was in (IIRC) the * Bengtsson *, where they proposed that the main physical factor in the «variability - driven warming / SI decline» of the»30s was a persistent circulation pattern resulting in a «clearing» of the Barents (or Barentsz, if you prefer), which in turn fed back into a larger warming.

There is so little understanding about how the ocean parses its response to forcings by 1) suppressing (local convective scale) deep water formation where excessive warming patterns are changed, 2) enhancing (local convective scale) deep water formation where the changed excessive warming patterns are co-located with increased evaporation and increased salinity, and 3) shifting favored deep water formation locations as a result of a) shifted patterns of enhanced warming, b) shifted patterns of enhanced salinity and c) shifted patterns of circulation which transport these enhanced ocean features to critically altered destinations.

The correlation between surface temperature and the Arctic Oscillation (AO) index (18), which can be used to represent large - scale circulation patterns, is shown in Fig. 5.

The global atmospheric circulation has a number of preferred patterns of variability, all of which have expressions in surface climate.

Yet, we explained there is also reasonable basis for concern that a warming world may at least temporarily increase tornado damage including the fact that oceans are now warmer, and regional ocean circulation cycles such as La Nina / El Nino patterns in the Pacific which affect upper atmospheric conditions appear to becoming more chaotic under the influence of climate change.

The changing phases of Atlantic hurricane activity are not completely understood; but there appears to be a link to fluctuations in the thermohaline circulation, the global pattern of ocean currents which in western Europe appears as the Gulf Stream.

Expecting less than 5 % of Earths surface to filter the air mass from the other 95 % given actual air circulation patterns is patently absurd compared to natural CO2 scrubbing mechanisms like the biological carbon cycles, or Henry's law (which is leading to ocean acidification.

The increasing global temperature, for instance, is linked to the 15 percent decline in the circulation of the Atlantic Ocean, which experts fear could disrupt weather patterns.

For example, the northern East Asian summer monsoon (NEASM) is, for the years of highest SST anomalies in the tropical eastern Pacific (TEP), affected by the Pacific - East Asian (PEA) teleconnection pattern, which consists of a wave creating an anomalously strong western North Pacific (WNP) anticyclonic circulation and anomalously strong cyclonic circulation in the NEASM region, creating more monsoon rainfall.

Three of these five intervals coincided with multidecadal hemispheric climate - regime shifts, which were characterized by a switch between distinct atmospheric and oceanic circulation patterns, a reversal of NHT trend, and by altered character of ENSO variability.

According to their modeling studies, the difference in the amount of incoming solar radiation, in this case, primarily in the ultraviolet (UV) wavelengths, during the minima and maxima of the 11 - yr solar cycle are large enough to produce a characteristic change in the winter circulation pattern of the atmosphere over North America... When the NAO is in its negative phase, more cold air can seep south from the Arctic and impact the lower latitudes of Europe and the eastern U.S., which helps spin up winter storm systems.

A strong El Niño heats up the atmosphere and changes circulation patterns around the globe, especially the jet stream over the Pacific, which becomes stronger and dumps more frequent and intense storms over the western U.S., especially California.

By examining the spatial pattern of both types of climate variation, the scientists found that the anthropogenic global warming signal was relatively spatially uniform over the tropical oceans and thus would not have a large effect on the atmospheric circulation, whereas the PDO shift in the 1990s consisted of warming in the tropical west Pacific and cooling in the subtropical and east tropical Pacific, which would enhance the existing sea surface temperature difference and thus intensify the circulation.

It is an oscillation which reflects the predominant ocean circulation patterns and the temperature of the water itself.

The circulation pattern described above — ascent in the equatorial trough, poleward movement in the upper troposphere, descent in the subtropical ridges, and equatorward movement in the trade winds — is in effect a direct heat engine, which meteorologists call the Hadley cell.

As I have also noted in recent public comments, additional mechanisms have been identified by which changes in atmospheric circulation patterns that may be a result of global warming could be affecting droughts in the American West.

He has detected 13 UHI - affected stations and a number for which data were confused by site changes or changes in circulation patterns.

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.

Figure 1 shows the pattern of circulation reversals that relates to the differences referenced in Koerner's 1973 paper (which is titled The Mass Balance of the Sea Ice of the Arctic Ocean).

The most natural type of long term variability is in my view based on slowly varying changes in ocean circulation, which doesn't necessarily involve major transfer of heat from one place to another but influences cloudiness and other large scale weather patterns and through that the net energy flux of the Earth system.

One last point related to my last post, is the extent / degree of magnitude of a more meridional atmospheric circulation pattern (N.H. especially) could influence snow cover, cloud cover, and precipitation amounts which could set up stronger positive climatic feedbacks, which could then result in an even more significant climatic change going forward.

Observations suggest that variability in oceanographic conditions in the Arctic is very largely driven by the consequences of the flows through open passages to both Atlantic and Pacific Oceans, which themselves respond to the different and characteristic variability of the circulation patterns of each ocean: each inflow is not only variable in volume of water transported but also in the temperature of the water imported.

Scientists have recently observed major changes in these glaciers: several have broken up at the ocean end (the terminus), and many have doubled the speed at which they are retreating.2, 5 This has meant a major increase in the amount of ice and water they discharge into the ocean, contributing to sea - level rise, which threatens low - lying populations.2, 3,5 Accelerated melting also adds freshwater to the oceans, altering ecosystems and changing ocean circulation and regional weather patterns.7 (See Greenland ice sheet hotspot for more information.)