Sentences with phrase «on circulation patterns»

Dr Peter Stott, who leads the Climate Monitoring and Attribution team at the Met Office and wasn't involved in the paper, says we shouldn't admit defeat and ignore the impacts of climate change on circulation patterns.

Not exact matches

The timing of such uplift is important in helping scientists to understand how mountains form, how they erode and what impact this may have on global atmospheric circulation patterns and climate.

The Tibetan Plateau in China experiences the strongest monsoon system on Earth, with powerful winds — and accompanying intense rains in the summer months — caused by a complex system of global air circulation patterns and differences in surface temperatures between land and oceans.

The poles are on the front lines of climate change — melting ice, thawing permafrost, warming temperatures — but they are also at the forefront of weather patterns, global oceanic circulation and the marine food chain.

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.

The second theory focuses on dramatic changes in the patterns of ocean circulation.

And what we see is both how complex climate changes can be and how profound an effect changing patterns of ocean circulation can have on global climate states, if looked at on a geological time scale.»

Although the rising average global surface temperature is an indicator of the degree of disruption that we have imposed on the global climate system, what's actually happening involves changes in circulation patterns, changes in precipitation patterns, and changes in extremes.

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.

A review article recently published in Reviews of Geophysics gave an overview of current understanding of «teleconnections» in atmospheric circulation and weather patterns, focused specifically on interactions that occur between tropical and midlatitude regions.

Jiacan has worked on several projects on climate dynamics, including the response of large - scale circulations in the warming climate, its effects on regional weather patterns and extreme events, tropical influence on mid-latitude weather, and dynamical mechanisms of sub-seasonal variability of mid-latitude jet streams.

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.

These emissions track the recombination of atomic nitrogen and oxygen produced on the dayside, and reveal the circulation patterns of the atmosphere.

... [T] he significant correlations as well as similar atmospheric circulation patterns might provide empirical support for a solar influence on hydroclimate extremes in central Europe during spring and summer by the so - called solar top - down mechanism.

Includes detailed information on the characteristics of the atmosphere, factors affecting wind, global atmospheric circulation systems, global pressure patterns and Hadley, Ferrel and Polar cells.

Vuillard's interest in patterned surfaces and domestic intimacy led him to produce many of his most compelling works around 1900 in two radically different formats: on the one hand, large - scale paintings, conceived as decorative ensembles and commissioned for private, domestic spaces; and, on the other, intimate color lithographs, produced in series and destined for broader circulation.

The museum's circulation pattern offers visitors glimpses into the vault's storage space as well, with its sliding racks of art visible from the complex descending staircase that visitors follow after exploring the main gallery on the third floor.

If the Drake passage became ice covered a the Last Glacial Maximum, that would have had a large influence on scale and patterns of Thermohaline 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.

Increases in freshwater flow into the ocean affect ocean circulation, ocean acidification (see AMAP's 2013 report on Arctic Ocean acidification), and biological productivity, and affect weather patterns far to the south.

Also the potential pathways of oceanic circulation patterns would be affcted, and the presence or absence of large mountain ranges would impact on wind and precipitation patterns...

I'm still inclined to think that subtle changes in ocean circulation patterns, with resulting local effects on climate, are more likley to be responsible.

The flow of energy between different circulation patterns is dependent on fram of reference (Eulerian vs transformed Eulerian); The Ferrel Cell is the result of some average upward motion poleward of some average downward motion with return flows at lower and higher altitudes, superimposed on the average temperature distribution.

Seasonal weather patterns are also correlated (between models and the real world) to an increasing extent and there is a high degree of correlation between circulation changes based on SST's between the models and the real world.

As noted in that post, RealClimate defines the Atlantic Multidecadal Oscillation («AMO») as, «A multidecadal (50 - 80 year timescale) pattern of North Atlantic ocean - atmosphere variability whose existence has been argued for based on statistical analyses of observational and proxy climate data, and coupled Atmosphere - Ocean General Circulation Model («AOGCM») simulations.

On the longest time - scale of geologic time, the shape and location of the continents helps to determine the oceans» circulation patterns.

For the entire Northern Hemisphere, there is evidence of an increase in both storm frequency and intensity during the cold season since 1950,1 with storm tracks having shifted slightly towards the poles.2, 3 Extremely heavy snowstorms increased in number during the last century in northern and eastern parts of the United States, but have been less frequent since 2000.11,15 Total seasonal snowfall has generally decreased in southern and some western areas, 16 increased in the northern Great Plains and Great Lakes region, 16,17 and not changed in other areas, such as the Sierra Nevada, although snow is melting earlier in the year and more precipitation is falling as rain versus snow.18 Very snowy winters have generally been decreasing in frequency in most regions over the last 10 to 20 years, although the Northeast has been seeing a normal number of such winters.19 Heavier - than - normal snowfalls recently observed in the Midwest and Northeast U.S. in some years, with little snow in other years, are consistent with indications of increased blocking (a large scale pressure pattern with little or no movement) of the wintertime circulation of the Northern Hemisphere.5 However, conclusions about trends in blocking have been found to depend on the method of analysis, 6 so the assessment and attribution of trends in blocking remains an active research area.

Because of their large scale and low - frequency nature, the circulation patterns contribute greatly to the atmospheric predictability on the subseasonal time scale.

«It is all extremely uncertain, and depends on ocean - circulation patterns,» says Michaela Aschan, a fisheries professor from the University of Tromso.

This disruption in circulation patterns could change the lives of people on both sides of the Atlantic.

The preoccupation with focusing only on the visible surface of the earth, and disconnecting the strongest tidal and gravitational forces in the Earth / Moon system has lead to this misunderstanding of why the lunar tidal effects (when not considered) that produce the teleconnections seen in so many global circulation patterns leaves so many easy to answer questions.

Would a drop in temperature of the upper atmosphere of say 500 °F have no effect on surface temperatures or atmospheric circulation patterns?

The effects on sea circulation patterns and weather are complex and difficult to tease out from natural variation, requiring long - term observation.

Associated with our work on atmospheric circulation patterns we are studying energy transport in the earth system and the transport of water in the atmosphere on different time and space scales.

Our research is focused on understanding the circulation patterns in the atmosphere on different time scales and how they are driven through different processes.

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.

It appears we agree on the inability of the global models to simulate the natural variations on decadal and, presumably longer time scales, of large scale circulation patterns such as ENSO, the PDO, the NAO etc..

The NAO change produces affects on the winter circulation patterns resulting in a dearth or abundance of Northern Hemisphere severe winter storms.

The change in total solar irradiance over recent 11 - year sunspot cycles amounts to < 0.1 %, but greater changes at ultraviolet wavelengths may have substantial impacts on stratospheric ozone concentrations, thereby altering both stratospheric and tropospheric circulation patterns... This model prediction is supported by paleoclimatic proxy reconstructions over the past millennium.

«A climate pattern may come in the form of a regular cycle, like the diurnal cycle or the seasonal cycle; a quasi periodic event, like El Niño; or a highly irregular event, such as a volcanic winter... A mode of variability is a climate pattern with identifiable characteristics, specific regional effects, and often oscillatory behavior... the mode of variability with the greatest effect on climates worldwide is the seasonal cycle, followed by El Niño - Southern Oscillation, followed by thermohaline circulation.»

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.

Meier et al. (National Snow and Ice Data Center); 4.74 Million Square Kilometers; Statistical Prediction by Stroeve et al. shown in the June outlook remains unchanged since it was based on spring ice age fields and an average summer circulation pattern.

Although the NAO is the dominant pattern of atmospheric circulation variability, accounting for about half of the total winter SLP variance on both interannual and multi-decadal time scales, other large - scale structures of internal circulation variability will also undoubtedly contribute to uncertainty in future climate trends.

The Quaternary glacial history of the Arctic Ocean is characterized by the repeated build - up and decay of circum - Arctic ice sheets on the continental shelves, the development and disintegration of ice shelves, and related changes in ocean - circulation patterns and sea ice cover50, 51,52,53,54,55.

«The authors write that North Pacific Decadal Variability (NPDV) «is a key component in predictability studies of both regional and global climate change,»... they emphasize that given the links between both the PDO and the NPGO with global climate, the accurate characterization and the degree of predictability of these two modes in coupled climate models is an important «open question in climate dynamics» that needs to be addressed... report that model - derived «temporal and spatial statistics of the North Pacific Ocean modes exhibit significant discrepancies from observations in their twentieth - century climate... conclude that «for implications on future climate change, the coupled climate models show no consensus on projected future changes in frequency of either the first or second leading pattern of North Pacific SST anomalies,» and they say that «the lack of a consensus in changes in either mode also affects confidence in projected changes in the overlying atmospheric circulation.»»

That would change the air circulation patterns resulting in the observed wind effect on the ocean surfaces but would itself have been caused by changes in the rate of release or absorption of energy from the ocean surfaces.

The air responds to a change in it's own resistor efficiency by changing it's own circulation patterns to again meet the requirement that the surface air temperature and the sea surface temperature be the same on average globally.

We would not expect to see any effect on weather or climate other than that the air circulation patterns would be in very slightly differing (but still ever changing) positions than if we had made no difference at all.

But in a given model you can often find ways of altering the model's climate sensitivity through the sub-grid convection and cloud schemes that affect cloud feedback, but you have to tread carefully because the cloud simulation exerts a powerful control on the atmospheric circulation, top - of - atmosphere (TOA) and surface radiative flux patterns, the tropical precipitation distribution, etc..

«You may be getting global cooling of 1 - 2C on average, but that's entirely confined to certain regions and that would really upset weather patterns, ocean circulation and local biology.»