Sentences with phrase «by atmospheric circulation»

And as the for the reason for this year's Arctic ice melt, NASA and university scientists have detected an ongoing reversal in Arctic Ocean circulation triggered by atmospheric circulation changes that varies on decade - long time scales.

Perhaps Weather should be defined as variations in atmospheric parameters (temp, humidity, etc) which are caused by atmospheric circulation.

I suspect that the Atlantic sequestration impact is amplified by atmospheric circulation changes that change the cloud distribution that change both the TOA and surface radiation balances.

«-- A team of NASA and university scientists has detected an ongoing reversal in Arctic Ocean circulation triggered by atmospheric circulation changes that vary on decade - long time scales.

McKitrick criticizes the IPCC assertion that «locations of greatest socioeconomic development are also those that have been most warmed by atmospheric circulation ``.

This vapor is often moved by atmospheric circulation vertically and horizontally to cooler locations where it is condensed as rain or is deposited as snow releasing the heat energy stored within it.

«In 2007 a team of NASA and university scientists has detected an ongoing reversal in Arctic Ocean circulation triggered by atmospheric circulation changes that vary on decade - long time scales.

But matters are greatly complicated by atmospheric circulation patterns, cyclic changes in temperatures over the oceans, and the shapes of land masses.

Precipitation changes might be significant in particular localities, especially where precipitation is affected by atmospheric circulation changes, as seems recently to have been the case with southern Scandinavian glaciers (Oerlemans, 1999).

The regions of large precipitation are determined by the atmospheric circulation: the near - surface atmospheric flow converges near the subsolar point, leading to strong ascending motion and condensation (see Merlis and Schneider (2010) for a detailed discussion).

What did the IPCC mean by its reference to locations «most warmed by atmospheric circulation changes»?

The first point to dispense with is the reference to Sections 3.2.2.7 and 3.6.4 in support of the claim that «the locations of greatest socioeconomic development are also those that have been most warmed by atmospheric circulation changes.»

Assuming all other things are equal then I would expect that a shutdown in the THC would lead to more heat transport by the atmospheric circulation as the temperature gradient would be greater.

Not exact matches

The work performed by this atmospheric engine drives the atmospheric general circulation.

The researchers found that large - scale features of atmospheric circulation — in particular, the strength and position of the Aleutian Low, a semi-permanent, subpolar area of low pressure located in the Gulf of Alaska near the Aleutian Islands — largely determined the timing of snowmelt during spring in Alaska, by either facilitating or inhibiting the transport of warm, moist air into the region.

«Which of those is correct at this stage is unknown, but the droughts being driven by atmospheric greenhouse gas concentrations is in line with some of these global circulation models,» Lewis said.

Lozier (p. 1507) discusses how recent studies have challenged our view of large - scale ocean circulation as a simple conveyor belt, by revealing a more complex and nuanced system that reflects the effects of ocean eddies and surface atmospheric winds on the structure and variability of the ocean's overturning.

Retreating sea ice in the Iceland and Greenland Seas may be changing the circulation of warm and cold water in the Atlantic Ocean, and could ultimately impact the climate in Europe, says a new study by an atmospheric physicist from the University of Toronto Mississauga (UTM) and his colleagues in Great Britain, Norway and the United States.

«As a result, some atmospheric circulations systems can not be resolved by these models, and this clearly impacts the accuracy of climate change predictions as shown in our study.»

But the atmospheric circulation reverses direction twice a year, and strong winds have been revealed in the upper atmosphere by cloud tracking and the brief measurements the Huygens probe made in 2005 as it descended towards the moon.

An unlucky atmospheric circulation pattern may have been made worse by poor farming practices.

With coordinated experiments with six atmospheric general circulation models, forced by observed daily sea - ice concentration and sea surface temperatures.

A Columbia Engineering team led by Pierre Gentine, professor of earth and environmental engineering, and Adam Sobel, professor of applied physics and applied mathematics and of earth and environmental sciences, has developed a new approach, opposite to climate models, to correct climate model inaccuracies using a high - resolution atmospheric model that more precisely resolves clouds and convection (precipitation) and parameterizes the feedback between convection and atmospheric circulation.

What if, instead, the winds that drive atmospheric circulation are mainly created by the condensation of moisture?

Air naturally poor in ozone was, for example, lifted into the lower stratosphere above Britain from the sub-tropical Atlantic, by an unusual pattern of atmospheric circulation.

The coupling between the oceans is established by a massive reorganization of the atmospheric circulation.»

The understanding of the atmospheric circulation changes, later to be discovered to be connected to the appearance of El Niño events, was originally motivated by reasons other than ocean currents.

The two examples shown here are small waves — atmospheric circulation is driven by large - scale waves, with wavelengths that are hundreds or thousands of kilometers.

The regions where droughts have occurred seem to be determined largely by changes in SSTs, especially in the tropics, through associated changes in the atmospheric circulation and precipitation.

To derive the climate projections for this assessment, we employed 20 general circulation models to consider two scenarios of global carbon emissions: one where atmospheric greenhouse gases are stabilized by the end of the century and the other where it grows on its current path (the stabilization [RCP4.5] and business - as - usual [RCP8.5] emission scenarios, respectively).

On glacial - interglacial time scales, atmospheric CO2 is mainly governed by the interplay between ocean circulation, marine biological activity, ocean - sediment interactions, seawater carbonate chemistry and air - sea exchange.

... [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.

Cess, R.D., et al., 1989: Interpretation of cloud - climate feedback as produced by 14 atmospheric general circulation models.

This year we received 14 June SIO submissions from dynamical models, of which 3 were from ice - ocean models forced by atmospheric reanalysis or other atmospheric model output and 12 were from fully - coupled general circulation models.

Methods: In these experiments, the research team conducted large ensembles of simulations with two state - of - the - art atmospheric general circulation models by abruptly switching the sea - surface temperature warming on from January 1st to focus on the wintertime circulation adjustment.

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.

But tremendous natural variability occurs in the large - scale atmospheric circulation during all seasons, and even in summer the links between Arctic warming and mid-latitude weather are not supported by other observational studies.

The lag between decreases in sea ice extent during late summer and changes in the mid-latitude atmospheric circulation during other seasons (like autumn and winter, when the recent loss of sea ice is much smaller) have been demonstrated empirically, but have not been captured by existing dynamical models.

The consensus is that European warmness is due to a combination of atmospheric circulation and a wind driven GS, neither of which is driven by the THC.

This would have an effect on both atmospheric and ocean circulation and heat balance that would have to be modeled by detailed ocean / atmospheric climate modeling.

The radiative balance over equilibrium timescales — the heat released by raindrop formation will locally warm the atmosphere, but it takes time for the atmospheric circulation to average this out.

Whether the activity of TCs (TC - scale dynamics and cumulus convection together) is determined by the global climatic condition (SST, atmospheric composition and general circulation).

Here we are talking about modification of atmospheric circulation — poleward expansion of the dry, descending portion of the Hadley Cell circulation by a few degrees, associated shifts in the jet stream.

This study proposes a mechanism sustaining the enhanced westerly winds by a cyclonic atmospheric circulation in the Barents Sea region created by a strong surface heat flux over the ice - free areas.

Wang and colleagues believe they have assembled by far the most direct evidence that local atmospheric circulations driven by the inhomogeneous land cover due to deforestation in the Amazon basin are responsible for the distributions of clouds.

The warming is caused by changes in atmospheric circulation.

And by the time these changes in atmospheric circulation make their way east to the western Pacific and it starts to warm there, the El Niño is transitioning to La Niña.

«We think the recent snowy winters could be caused by the retreating Arctic ice altering atmospheric circulation patterns by weakening westerly winds, increasing the amplitude of the jet stream and increasing the amount of moisture in the atmosphere,»

The current drought is caused by a high - pressure system that disturbs the atmospheric circulation.

27, pp.115 - 139, (1989).2 R. D. Cess et al, «Interpretation of cloud - climate feedback as produced by 14 atmospheric general circulation models», Science, Vol.