Sentences with phrase «changes in atmospheric circulation in»

Apparently, El Nino events also cause changes in atmospheric circulation in ways that impact Ocean Heat Content».
By one measure (the EQSOI), the El Niño - related changes in the atmospheric circulation in 1997/98 and 2015/16 are tied; by another (the SOI), 1997/98 was stronger.

Not exact matches

This «would create a persistent layer of black carbon particles in the northern stratosphere that could cause potentially significant changes in the global atmospheric circulation and distributions of ozone and temperature,» they concluded.
The greening of Sahara strengthens the West African Monsoon, which triggers a change in the atmospheric circulation over the entire tropics, affecting tropical cyclone activity.
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.
Lyon thinks this change in temperatures has altered atmospheric circulation patterns, cutting off the supply of moisture to east Africa (Geophysical Research Letters, DOI: 10.1029 / 2011GL050337).
Tropical widening is associated with several significant changes in our climate, including shifts in large - scale atmospheric circulation, like storm tracks, and major climate zones.
«But on top of that, changes in atmospheric circulation can favor particular weather conditions associated with heat waves.»
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.
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.»
«This emphasizes the importance of large - scale energy transport and atmospheric circulation changes in restoring Earth's global temperature equilibrium after a natural, unforced warming event,» Li said.
At that time, changes in atmospheric - oceanic circulation led to a stratification in the ocean with a cold layer at the surface and a warm layer below.
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.
A new analysis using changes in cloud cover over the tropical Indo - Pacific Ocean showed that a weakening of a major atmospheric circulation system over the last century is due, in part, to increased greenhouse gas emissions.
The team analyzed an index of sea surface temperatures from the Bering Sea and found that in years with higher than average Arctic temperatures, changes in atmospheric circulation resulted in the aforementioned anomalous climates throughout North America.
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.
The changes in the atmospheric circulation include things like a stronger subtropical jet stream.
They were Jorge Sarmiento, an oceanographer at Princeton University who constructs ocean - circulation models that calculate how much atmospheric carbon dioxide eventually goes into the world's oceans; Eileen Claussen, executive director of the Pew Center for Global Climate Change in Washington, D.C.; and David Keith, a physicist with the University of Calgary in Alberta who designs technological solutions to the global warming problem.
Your statement that «Thus it is natural to look at the real world and see whether there is evidence that it behaves in the same way (and it appears to, since model hindcasts of past changes match observations very well)» seems to indicate that you think there will be no changes in ocean circulation or land use trends, nor any subsequent changes in cloud responses thereto or other atmospheric circulation.
Zhang, X., Sorteberg, A., Zhang, J., Gerdes, R. & Comiso, J. C. Recent radical shifts of the atmospheric circulations and rapid changes in the Arctic climate system.
However, the name «El Niño», which originally has its origin from changes in the ocean, is linked to changes in the atmospheric circulation.
Something that goes along with this change in atmospheric circulation is reduced sea ice in the region (while sea ice in Antarctica has been increasing on average, there have been significant declines off the West Antarctic coast for the last 25 years, and probably longer).
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.
Changes in the large - scale atmospheric circulation are apparent.
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).
The El Niño - Southern Oscillation cycle refers to a fluctuation between unusually warm (El Niño) and cold (La Niña) waters in the tropical Pacific, with associated changes in atmospheric circulation (the Southern Oscillation)(Figure 2 - 5).
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.
-- The El Niño - Southern Oscillation cycle refers to a fluctuation between unusually warm (El Niño) and cold (La Niña) waters in the tropical Pacific, with associated changes in atmospheric circulation (the Southern Oscillation)(Figure 2 - 5).
Natural factors contributing to past climate change are well documented and include changes in atmospheric chemistry, ocean circulation patterns, solar radiation intensity, snow and ice cover, Earth's orbital cycle around the sun, continental position, and volcanic eruptions.
For the hydrological modelling of the Thames river catchment done at CEH we showed that the changes in atmospheric circulation and precipitation caused higher peak 30 - day river flow, while flood risk mapping revealed a small increase in flood risk for properties in the Thames catchment.
«It's important to determine where we believe that some of the recent trends in circulation could potentially be linked with climate change, rather than just natural variability,» Ted Shepherd, an atmospheric scientist at the University of Reading in the U.K., said in an email.
The latter is not equivalent to climate change not playing a role, because such results are obtained when the effect from a warmer atmosphere is in the opposite direction to the effect on the atmospheric circulation.
Whether or not these changes in atmospheric circulation are themselves linked to global warming wasn't something the study tried to answer.
Resulting changes in the atmospheric temperature structure, including from surface dimming, in turn affect regional circulation and precipitation patterns.
Wood, R.A., A.B. Keen, J.F.B. Mitchell, and J.M. Gregory, 1999: Changing spatial structure of the thermohaline circulation in response to atmospheric CO2 forcing in a climate model.
As the planet warms from the buildup of greenhouse gases, there may be a change in the atmospheric circulations near the equatorial Pacific Ocean.
Stouffer, R.J., and S. Manabe, 2003: Equilibrium response of thermohaline circulation to large changes in atmospheric CO2 concentration.
The top priorities should be reducing uncertainties in climate sensitivity, getting a better understanding of the effect of climate change on atmospheric circulation (critical for understanding of regional climate change, changes in extremes) and reducing uncertainties in radiative forcing — particularly those associated with aerosols.
Gregory, J.M., et al., 2005: A model intercomparison of changes in the Atlantic thermohaline circulation in response to increasing atmospheric CO2 concentration.
The main feedbacks between climate and the ice sheet arise from changes in ice elevation, atmospheric and ocean circulation, and sea - ice distribution.
El Niño events consist — very broadly — of an area of warm water in the equatorial Pacific coupled with changes in atmospheric circulation.
Hoerling and Kumar (2003) attributed the drought to changes in atmospheric circulation associated with warming of the western tropical Pacific and Indian oceans, while McCabe et al. (2004) have produced evidence suggesting that the confluence of both Pacific decadal and Atlantic multi-decadal fluctuations is involved.
Included in resource are the following topics: Natural causes of climate change Evidence of climate change Global Warming Causes and effects of climate change Global atmospheric circulation Tropical storms causes, characteristics, location and frequency Causes of EL Nino Effects of the Big Dry Adaptation to drought At the end of the resources are pupil booklets.
So was there a climate shift after the turn of the century involving changes in ocean and atmospheric circulation involving cloud changes?
In a series of papers, we've shown that the warmer temperatures observed over the WAIS are the result of those same atmospheric circulation changes, which are not related to the SAM, but rather to the remote forcing from changes in the tropical Pacific: changes in the character of ENSO (Steig et al., 2012; Ding et al., 2011; 2012In a series of papers, we've shown that the warmer temperatures observed over the WAIS are the result of those same atmospheric circulation changes, which are not related to the SAM, but rather to the remote forcing from changes in the tropical Pacific: changes in the character of ENSO (Steig et al., 2012; Ding et al., 2011; 2012in the tropical Pacific: changes in the character of ENSO (Steig et al., 2012; Ding et al., 2011; 2012in the character of ENSO (Steig et al., 2012; Ding et al., 2011; 2012).
The assessment considered the impacts of several key drivers of climate change: sea level change; alterations in precipitation patterns and subsequent delivery of freshwater, nutrients, and sediment; increased ocean temperature; alterations in circulation patterns; changes in frequency and intensity of coastal storms; and increased levels of atmospheric CO2.
The same might also be said about the NAO regarding repeated claims that the NAO index pressure differences are the cause, rather than the result, of changes in atmospheric circulation, i.e., weather.
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