Sentences with phrase «change on atmospheric circulation»

The impact of land cover change on the atmospheric circulation.

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.

Not exact matches

«But on top of that, changes in atmospheric circulation can favor particular weather conditions associated with heat waves.»

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).

To quantify the impact of human - induced climate change on Harvey and to estimate whether it indeed exacerbated the rainfall thus requires taking into account the atmospheric circulation as well as the overall warming.

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.

As the authors point out, even if the whole story comes down to precipitation changes which favor ablation, the persistence of these conditions throughout the 20th century still might be an indirect effect of global warming, via the remote effect of sea surface temperature on atmospheric circulation.

For example: could different oceanic circulation rates change the oceanic CO2 sink / source behaviour, or could different atmospheric conditions change the mixing rates of atmospheric gases hence modify their affect on the solar forcing?

Since El Nino also has an important impact on the Asian Summer Monsoon in particular, its hard to know precisely what large - scale changes in atmospheric circulation are due to the radiative forcing of the eruption itself, and the secondary response to that eruption of ENSO.

Haarsma et al. (2015) argue on the basis of model simulation that the weakening of the Gulf Stream system will in the future be the main cause of changes in the atmospheric summer circulation over Europe.

The well - known impact of El Niño on reducing Atlantic hurricane activity is in fact due to increased shear from the associated atmospheric circulation changes.

1) It seems to me that the key mechanism for any impact must be the changes that increased arctic ocean temperatures will impose on the atmospheric circulation feature known as the Polar Cell, and via this on the Ferrel cell which sits over the mid latitudes.

To investigate the effects of CO2 emissions on ocean pH, we forced the Lawrence Livermore National Laboratory ocean general - circulation model (Fig. 1a) with the pressure of atmospheric CO2 (pCO2) observed from 1975 to 2000, and with CO2 emissions from the Intergovernmental Panel on Climate Change's IS92a scenario1 for 2000 — 2100.

Just found this on a quick google: http://www.agu.org/journals/ABS/2009/2009GL037524.shtml Which refers to «non-annular atmospheric circulation change» which seems to argue against what I said above.

On the other hand, satellite - observed changes in absorbed sunlight and emitted heat in the tropics over the period 1985 - 2000, which appear to have caused a strengthening of the tropical atmospheric circulation, could in principle be either anthropogenic or natural in origin.

«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.

This study has highlighted the role of internal variability of the NAO, the leading mode of atmospheric circulation variability over the Atlantic / European sector, on winter (December - March) surface air temperature (SAT) and precipitation (P) trends over the next 30 years (and the next 50 years: see Supplemental Materials) using a new 40 - member ensemble of climate change simulations with CESM1.

«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.»»

The main modulating influence on tropical cyclone activity in the western North Pacific appears to be the changes in atmospheric circulation associated with ENSO, rather than local SSTs (Liu and Chan, 2003; Chan and Liu, 2004).

This Section places particular emphasis on current knowledge of past changes in key climate variables: temperature, precipitation and atmospheric moisture, snow cover, extent of land and sea ice, sea level, patterns in atmospheric and oceanic circulation, extreme weather and climate events, and overall features of the climate variability.

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.

Damn that weak and insipid science that pretends that changing ocean and atmospheric circulations can have any impact on climate at all.

«-- 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.

Changes in atmospheric circulation could have a major effect on tropospheric ozone.

States that other feedbacks likely to emerge are those in which key processes include surface fluxes of trace gases, changes in the distribution of vegetation, changes in surface soil moisture, changes in atmospheric water vapor arising from higher temperatures and greater areas of open ocean, impacts of Arctic freshwater fluxes on the meridional overturning circulation of the ocean, and changes in Arctic clouds resulting from changes in water vapor content

Some cooling on the EAIS also appears to be connected with the ABS sea ice trends, likely through organized patterns of atmospheric circulation changes.

Greenhouse gases have a cooling effect on the stratosphere, and climate change is likely to also alter atmospheric transport and circulation patterns.

CO2 has no chance of changing total atmospheric mass on Earth significantly however much we produce so the only remaining question is as to how far our CO2 emissions could change the circulation pattern.

Whether the large - scale thermodynamic environment and atmospheric static stability (often measured by Convective Available Potential Energy, CAPE) becomes more favourable for tropical storms depends on how changes in atmospheric circulation, especially subsidence, affect the static stability of the atmosphere, and how the wind shear changes.

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.

Thus an understanding of the mechanisms distributing water vapor through the atmosphere and of water vapor's effects on atmospheric radiation and circulation is vital to estimating long - term changes in climate.

Identify the impacts of a changing climate on sea ice loss; sea ice loss on patterns of atmospheric circulation and precipitation; oceanic circulation both within and beyond the Arctic, including the meridional overturning circulation in the Atlantic Ocean; and weather patterns in middle latitudes.

While on first thought this might seem undesirable because we are looking for a global number, it might make sense to separate them due to the large difference in land / ocean ratio and the fact that atmospheric circulation patterns isolate them WRT shorter term changes.

Even seemingly small changes in global temperature have far - reaching effects on sea level, atmospheric circulation, and weather patterns around the globe.

However, with the new evidence that changes in atmospheric and thus oceanic circulation may have obscured changes in sea level (http://environment.newscientist.com/article/dn12547-flatter-oceans-may-have-caused-1920s-sea-rise.html), is there any evidence that the previously apparently static sea levels caused groups to self - censor data on ice sheet melting?

The focus on Europe, aided by the increase in resolution, has revealed previously undiscussed impacts, particularly those associated with changing atmospheric circulation patterns.

Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation — Jaiser et al (2012) doi: 10.3402 / tellusa.v64i0.11595

9) In many GCMs, there are large biases in atmospheric circulation, and it seems probable that these biases will have major impacts on the ability of these models to accurately predict changes in sea ice.

1) Abstract «Such changes could have significant ramifications for global sea level, the ocean thermohaline circulation, native coastal communities, and commercial activities, as well as effects on the global surface energy and moisture budgets, atmospheric and oceanic circulations, and geosphere - biosphere feedbacks.

Rather than focusing on temperature gradients, which are often a consequence rather than cause of the circulation, one should investigate the conditions when condensation is likely to occur to predict changes in atmospheric circulation.

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].

10 - 14 June 2013: CFMIP / EUCLIPSE Meeting on Cloud Processes and Climate Feedback, Hamburg, GERMANY Focus: Clouds and precipitation in a changing climate; Coupling between cloud processes and the atmospheric circulation; Ability of models to simulate cloud processes, and the impact of errors on model predictive capabilities

Jaiser, R., Dethloff, K., Handorf, D., Rinke, A. & Cohen, J. Impact of sea ice cover changes on the Northern Hemisphere atmospheric winter circulation.

Its current dust output is essentially transport - limited, but with expected changes in future atmospheric circulation in response to increasing greenhouse gas concentrations, changes to deflation in the Bodélé may impose critical changes on the behavior of the Earth system in response to the role that dust plays in the biosphere and the sheer quantity emitted from this key region.

Other proposed mechanisms confine the Arctic's influence on large - scale circulation changes to the troposphere, in which a warmer Arctic favors a wavier flow and more persistent atmospheric blocking, which often spawns extreme weather events58, 59.