Sentences with phrase «scale atmospheric patterns»

However, since climate models are better able to capture broad patterns of middle atmospheric pressure (which are strongly linked to precipitation) than precipitation itself, it's likely that we can still say something meaningful about trends in large - scale atmospheric patterns conducive to low precipitation (and, therefore, drought).

... NA [North American] temperature is largely controlled by these three large - scale atmospheric patterns, i.e., the PNA [Pacific - North American pattern], ABNA [Asian - Bering - North American pattern] and NAO [North Atlantic Oscillation].

That excess tropical energy fueled rising air in a process known as convection, creating rain, releasing heat, and forming large - scale atmospheric patterns called Rossby waves.

Seasonal forecast models are predicting a large - scale atmospheric pattern during January - March much like that during California's wettest years.

Not exact matches

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).

Furthermore, since the end of the 19th century, we find an increasing variance in multidecadal hydroclimatic winter and spring, and this coincides with an increase in the multidecadal North Atlantic Oscillation (NAO) variability, suggesting a significant influence of large - scale atmospheric circulation patterns.

So apparently you're suggesting that decadal - scale precipitation patterns (more, less rainfall) and temperature changes are better explained by atmospheric CO2 concentrations.

These climate indices are correlated with population dynamics [8], [9] because they reflect atmospheric circulation patterns which regulate large scale oceanographic processes and ecosystem productivity [10], [11].

The large - scale patterns of seasonal variation in several important atmospheric fields are now better simulated by AOGCMs than they were at the time of the TAR.

Santa Ana winds result from a regional, large scale weather pattern caused by the atmospheric pressure differential between a Great Basin high - pressure cell and a Pacific Coast trough of low pressure.

In the Gym Schoolhouse of St. Moritz, the large - scale videos are on display, focusing on the bell jars, the interiors of which have been activated with swirling patterns of light or atmospheric effects.

But I believe there is little doubt that the record - breaking scale and potential destructiveness of Sandy is due in large part to the amplifying effects of warmer ocean temperatures, higher atmospheric moisture content, and unusual Arctic weather patterns.

On a grander scale, I've heard talk of an open Hudson Bay this fall influencing [atmospheric] wave patterns across the North Atlantic into Europe.

We need to be cognizant of everything from local - scale stable boundary layer micrometeorolgy and ocean unstable boundary layer turbulent processes to global oceanic and atmospheric circulation patterns such as the Arctic Oscillation and the Gulf Stream's seasonal evolution.

Its findings suggest that changing storm patterns and the ensuing droughts are due to a southern shift in the Hadley cell, the large - scale pattern of atmospheric circulation that transports heat from the tropics to the subtropics.

Much of the inter-annual to decadal scale variability in surface air temperature (SAT) anomaly patterns and related ecosystem effects in the Arctic and elsewhere can be attributed to the superposition of leading modes of variability in the atmospheric circulation.

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

For example, the Hadley cell, the large - scale pattern of atmospheric circulation that transports heat from the tropics to the subtropics, has marched south during recent decades, moving the subtropical dry zone (a band that receives little rainfall) along with it.

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.

They are consistent sets of projections of only the components of radiative forcing that are meant to serve as input for climate modeling, pattern scaling, and atmospheric chemistry modeling.

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.

Recent global climate change is also likely to affect large - scale atmospheric circulation patterns, with strong nonlinear feedbacks between thermodynamic and dynamic components of the climate system (10, 11).

Petoukhov et al. (34) proposed a common mechanism for generating persistent high - amplitude quasibarotropic planetary - scale wave patterns of the NH midlatitude atmospheric circulation with zonal wave numbers m = 6, 7, and 8 that can explain a number of the major NH summer extremes over the 1980 — 2011 period (34, 35).

Forests can affect the global climate system by altering large - scale patterns in atmospheric waves and jet streams, a mechanism termed «teleconnection patterns» (e.g., [12, 15 — 19]-RRB-.

The large interannual to decadal hydroclimatic variability in winter precipitation is highly influenced by sea surface temperature (SST) anomalies in the tropical Pacific Ocean and associated changes in large - scale atmospheric circulation patterns [16].

This decade - scale shift in the atmospheric - circulation pattern over the North Atlantic, from the Azores to Greenland, strongly affects wintertime downwind.

It is nonsense to think that cloud changes are not part of these shifts in large scale ocean and atmospheric patterns.

This very unusual atmospheric configuration — in which the large - scale atmospheric wave pattern appears to be largely «stuck» in place — has been characterized by a seemingly ever - present West Coast ridge and a similarly stubborn trough over central and eastern United States (commonly referred to in media coverage as the «Polar Vortex,» though this terminology is arguably problematic).

As noted above, patterns of large - scale variability in the extratropical atmospheric wind field exhibit variations on timescales from weeks to decades (Hartmann and Lo, 1998; Feldstein, 2000).

More heat in the Earth's system due to global warming is felt everywhere, and that includes the massive - scale patterns of atmospheric circulation that give us our weather.

They first sorted the data into regional patterns, and then compared the temporal behavior of these patterns to common historical climate indices — such as well - known patterns of atmospheric circulation, sea surface temperatures, or even large - scale warming.

Because the longwave atmospheric weather patterns (Rossby waves) have a scale of several thousand kilometers, it is not unusual for the temperature of a region the size of the United States to be substantially warmer or co lder during a single season than the zonal mean temperature.

Anthropogenic influences have contributed to observed increases in atmospheric moisture content in the atmosphere (medium confidence), to global - scale changes in precipitation patterns over land (medium confidence), to intensification of heavy precipitation over land regions where data are sufficient (medium confidence), and to changes in surface and subsurface ocean salinity (very likely).

Modes or patterns of climate variability - Natural variability of the climate system, in particular on seasonal and longer time scales, predominantly occurs with preferred spatial patterns and time scales, through the dynamical characteristics of the atmospheric circulation and through interactions with the land and ocean surfaces.

So the question to me is: are there reasons for concern that Earth's large - scale atmospheric circulation could be disrupted by climate change into an entirely new regime, with completely different circulation patterns?

It is further argued that the transition of vertical circulation patterns is in response to adjustments to geostrophic imbalance — an adjustment time scale of 6 — 9 h. Although unproven, we suggest that antecedent rainfall over the alkali desert 2 weeks prior to the event was instrumental in lowering the bulk density of sediments and thereby improved the chances for dust ablation by the atmospheric disturbance.

The Barbados annual dust cycle is linked to the cycle of dust activity in North Africa and to seasonal changes in large - scale atmospheric circulation patterns.