Sentences with phrase «as changes in atmospheric circulation»

Today, scientists fear not so much global warming as changes in atmospheric circulation.

Not exact matches

Countless additional forces — melting ice sheets, shifts in precipitation, changes in atmospheric and oceanic circulation, to name a few — will influence the process as well.

That would cover seasonal changes in climate, lakes and atmospheric circulation vital to understanding Titan as a whole.

World weather patterns will also start to change, as a frigid Antarctic continent and the icy ocean currents that surround it play an important role in global atmospheric and oceanic circulation.

«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.&raquAs 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.&raquas shown in our study.»

In the North Atlantic, more heat has been retained at deep levels as a result of changes to both the ocean and atmospheric circulations, which have led to the winter atmosphere extracting less heat from the ocean.

The researchers warn, however, that the future evolution of the AMO remains uncertain, with many factors potentially affecting how it interacts with atmospheric circulation patterns, such as Arctic sea ice loss, changes in solar radiation, volcanic eruptions and concentrations of greenhouse gases in the atmosphere.

There are strong competing effects such as changes in the large - scale atmospheric circulation, sea surface temperature changes like El Niño and La Niña and the dynamics of westerly storm tracks that all interact at the mid-latitudes,» said Stanford co-author Matthew Winnick who contributed to the study with fellow doctoral student Daniel Ibarra.

As discussed in the Climate chapter, large - scale atmospheric circulation patterns connected to changes in sea - surface temperatures strongly influence natural variations in precipitation and temperature (e.g., Cayan et al. 1999; Mantua and Hare 2002).

Changes in Hadley circulation affects convection and thus atmospheric moisture content and cloud cover which may in turn affect net solar heating as well as the transfer of heat from Earth to space.

As the planet warms from the buildup of greenhouse gases, there may be a change in the atmospheric circulations near the equatorial Pacific Ocean.

Changes in Southern Ocean circulation resulting from changes in Southern Ocean winds (23) or buoyancy fluxes (24) have been identified as the dominant cause of atmospheric CO2 changes (9,Changes in Southern Ocean circulation resulting from changes in Southern Ocean winds (23) or buoyancy fluxes (24) have been identified as the dominant cause of atmospheric CO2 changes (9,changes in Southern Ocean winds (23) or buoyancy fluxes (24) have been identified as the dominant cause of atmospheric CO2 changes (9,changes (9,10,25).

In models at least, this kind of response would be most directly related to increases in stratification due to surface warming, as I understand it, and not directly to the kind of change in atmospheric circulation discussed in Dian's papeIn models at least, this kind of response would be most directly related to increases in stratification due to surface warming, as I understand it, and not directly to the kind of change in atmospheric circulation discussed in Dian's papein stratification due to surface warming, as I understand it, and not directly to the kind of change in atmospheric circulation discussed in Dian's papein atmospheric circulation discussed in Dian's papein Dian's paper.

Many feedbacks, such as changes in atmospheric moisture, cloudiness, and atmospheric circulation should be similar for most forcings.

All climate models tell us that it is the Arctic sea ice cover that declines first, and that Antarctic ice extent falls only later, and may even (as observed) temporarily increase in response to changing patterns of atmospheric circulation.

Other forcings, including the growth and decay of massive Northern Hemisphere continental ice sheets, changes in atmospheric dust, and changes in the ocean circulation, are not likely to have the same kind of effect in a future warming scenario as they did at glacial times.

Everything else that might try to alter that base level simply results in atmospheric circulation changes (atmosphere includes oceans for this purpose) that adjust the rate of conversion between kinetic and potential energy so as to keep the base level of system energy content stable.

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.

And that event of climate change led to ocean surface warming, sea level rise, and increases in atmospheric carbon dioxide concentrations as changing ocean circulation delivered gases to the atmosphere.

Current global multi-decadal predictions are unable to skillfully simulate regional forcing by major atmospheric circulation features such as from El Niño and La Niña and the South Asian monsoon, much less changes in the statistics of these climate features.

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).

Sea ice with its strong seasonal and interannual variability (Fig. 1) is a very critical component of the Arctic system that responds sensitively to changes in atmospheric circulation, incoming radiation, atmospheric and oceanic heat fluxes, as well as the hydrological cycle1, 2.

It is not clear that the world is warming post the 1998/2001 climate shift — that involved a climatically significant step change in albedo as a response to abrupt changes in ocean and atmospheric circulation.

Mazarella tells us that if we look at climate change as a part of a holistic process, we see that included in this single unit are changes in «atmospheric circulation» and «like a torque,» variations in atmospheric circulation can in and of themselves cause «the Earth's rotation to decelerate which in turn causes a decrease in sea temperature.»

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.

It is seen in regime changes in cloud, ice, ocean and atmospheric circulation, hydrology and biology that are evident in climate records and that are best described as shifts in state space on the multi-dimensional climate strange attractor at 20 to 30 year intervals.

The changing temperature and chemistry of the Arctic Ocean and Bering Sea are likely changing their role in global ocean circulation and as carbon sinks for atmospheric CO2 respectively, although the importance of these changes in the global carbon budget remains unresolved.

One important feature that plays a role in these variations is the periodic change of atmospheric and oceanic circulation patterns in the tropical Pacific region, collectively known as El Niño — Southern Oscillation (ENSO) variation»

Shows that the changes in discharge extremes are related to the regional pluriannual rainfall variability and the associated atmospheric circulation as well as to tropical large - scale climatic indicators

The seasonal climate may relate to changes in the ocean circulation pattern prior to 4.6 Ma that resulted in an increased temperature and atmospheric pressure gradient between the east coast of North America and the Atlantic Ocean, but this climate phase seems to be only a temporary condition, as underlying and overlying sediment are both consistent with drier conditions.

The large scale atmospheric circulation «cells» shift polewards in warmer periods (for example, interglacials compared to glacials), but remain largely constant as they are, fundamentally, a property of the Earth's size, rotation rate, heating and atmospheric depth, all of which change little.

• Even without major change in atmospheric and oceanic circulation, local shifts in centers of production and mixes of species in marine and fresh waters are expected as ecosystems are displaced geographically and changed internally.

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.

These aspects of precipitation generally exhibit large natural variability, and El Niño and changes in atmospheric circulation patterns such as the North Atlantic Oscillation have a substantial influence.

As atmospheric circulation changes, tropical cyclone tracks are bound to change (and models show this), but we have low confidence now in predicting just how they might change.

The likelihood of abrupt changes in the atmospheric circulation remains unclear, as does the potential for inducing abrupt climate change in regions of large gradients in surface weather.

Motivated by findings that major components of so - called cloud «feedbacks» are best understood as rapid responses to CO2 forcing (Gregory and Webb in J Clim 21:58 — 71, 2008), the top of atmosphere (TOA) radiative effects from forcing, and the subsequent responses to global surface temperature changes from all «atmospheric feedbacks» (water vapour, lapse rate, surface albedo, «surface temperature» and cloud) are examined in detail in a General Circulation Model.

As such, understanding abrupt changes in — and due to — the atmospheric circulation remains a key topic for future research.

Regarding the hydrologic cycle, multiple factors operate, including important changes in atmospheric circulation patterns, as Chris Colose mentioned.

Variations in ocean circulation speeds account for significant instances of climate change, changing the hydrological cycle and altering atmospheric circulation patterns as well.

There are large changes with the El Nino - Southern Oscillation and volcanoes as well step changes and decadal variability to do with changes in cloud associated with changes in ocean and atmospheric circulation.

I think it is really important to make that distinction - that there are a number of factors that influence the extent of Arctic sea ice, some of them of course associated with changes in the radiative forcing from the atmosphere, as a result of anthropogenic greenhouse gases and aerosols, but also changes in the atmospheric circulation and also the advection of heat into or out of the Arctic by the ocean circulation.

Temperature changes are one of the more obvious and easily measured changes in climate, but atmospheric moisture, precipitation and atmospheric circulation also change, as the whole system is affected.

Three - dimensional (3D) planetary general circulation models (GCMs) derived from the models that we use to project 21st Century changes in Earth's climate can now be used to address outstanding questions about how Earth became and remained habitable despite wide swings in solar radiation, atmospheric chemistry, and other climate forcings; whether these different eras of habitability manifest themselves in signals that might be detected from a great distance; whether and how planets such as Mars and Venus were habitable in the past; how common habitable exoplanets might be; and how we might best answer this question with future observations.

Their influence on the atmospheric circulation is focused on the polar regions by the Earth's magnetic field [the opposite phase of the changes in the Arctic and the Antarctic can be explained by the phenomenon of «solar system dissymmetry» as a result of which fluctuations of solar constant occur].