Sentences with phrase «associated changes in circulation»

«The Greenland ice sheet as a whole is shrinking, melting and reducing in size as the result of globally changing air and ocean temperatures and associated changes in circulation patterns in both the ocean and atmosphere,» Muenchow said.

Not exact matches

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.»

The higher sensitivity of the cerebellum to what we interpret to reflect changes in vascular reactivity with marijuana abuse is consistent with clinical findings that report strokes associated with marijuana abuse are more frequently localized in the posterior circulation and ischemia is most frequently observed in cerebellum (25, 54 ⇓ — 56).

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.

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).

-- 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).

Previously, Kelly was a Postdoctoral Fellow and Research Associate at the University of Washington and the University of Victoria in British Columbia, Canada where she studied the role of the changing Arctic sea ice cover on global circulation, weather, and climate using a hierarchy of numerical global climate models.

For years, perhaps decades, Gray has been ascribing all sorts of climate changes and hurricane cycles to fluctuations in the Thermohaline Circulation (THC), an overturning circulation in the Atlantic ocean associated with formation of deep water in the NortCirculation (THC), an overturning circulation in the Atlantic ocean associated with formation of deep water in the Nortcirculation in the Atlantic ocean associated with formation of deep water in the North Atlantic.

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.

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.

A recent paper by Vecchi and Soden (preprint) published in the journal Geophysical Research Letters has been widely touted in the news (and some egregiously bad editorials), and the blogosphere as suggesting that increased vertical wind shear associated with tropical circulation changes may offset any tendencies for increased hurricane activity in the tropical Atlantic due to warming oceans.

A measure of the difference in sea level pressure between the western (e.g., Darwin, Australia) and central / eastern (e.g., Tahiti) equatorial Pacific, representative of the east - west changes in atmospheric circulation associated with the El Nino / Southern Oscillation phenomenon.

The climate change in this period is generally believed to be associated with precessional changes in the distribution of solar radiation, which primarily affect land - sea temperature contrast, and give only a regional warming, plus an enhancement of certain monsoonal circulations.

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.

In the SH, changes in circulation related to an increase in the SAM from the 1960s to the present are associated with strong warming over the Antarctic Peninsula and, to a lesser extent, cooling over parts of continental AntarcticIn the SH, changes in circulation related to an increase in the SAM from the 1960s to the present are associated with strong warming over the Antarctic Peninsula and, to a lesser extent, cooling over parts of continental Antarcticin circulation related to an increase in the SAM from the 1960s to the present are associated with strong warming over the Antarctic Peninsula and, to a lesser extent, cooling over parts of continental Antarcticin the SAM from the 1960s to the present are associated with strong warming over the Antarctic Peninsula and, to a lesser extent, cooling over parts of continental Antarctica.

A large decrease in atmospheric CH4 concentrations (several tens of parts per billion; Spahni et al., 2003) reveals the widespread signature of the abrupt «8.2 ka event» associated with large - scale atmospheric circulation change recorded from the Arctic to the tropics with associated dry episodes (Hughen et al., 1996; Stager and Mayewski, 1997; Haug et al., 2001; Fleitmann et al., 2003; Rohling and Palike, 2005).

Examples of such nonlinear behaviour include rapid circulation changes in the North Atlantic and feedbacks associated with terrestrial ecosystem changes.

It was determined that a major cause of changes in the size and extent of the Antarctic ozone hole are the intense wind patterns and circulations associated with the extensive Antarctic high - pressure zone and the surrounding wind pattern known as the Circumpolar Vortex.

When many causes all interact — and abrupt climate change candidates include the thermohaline circulation, the atmospheric circulation associated with the North Atlantic Oscillation, changes in tropical evaporation, and changes in albedo — the human mind needs some help.

With respect to the ocean, CO2 flows in and out continuously according to ocean circulations and the associated temperature changes.

Changes in sea - surface temperatures (SSTs) also have an effect by bringing about associated changes in atmospheric circulation and precipiChanges in sea - surface temperatures (SSTs) also have an effect by bringing about associated changes in atmospheric circulation and precipichanges in atmospheric circulation and precipitation.

Due to changes in Hadley and Walker Circulation associated with the relocation of tropical Pacific convection during the El Nino.

Bob Tisdale replies: [the trade winds weaken] «Due to changes in Hadley and Walker Circulation associated with the relocation of tropical Pacific convection during the El Nino.

The most interesting feature is the step change in cloud — associated with a change in ocean and atmospheric circulation — in the 1998/2001 climate shift.

Here we use an ensemble of simulations with a coupled ocean — atmosphere model to show that the sea surface temperature anomalies associated with central Pacific El Niño force changes in the extra-tropical atmospheric circulation.

Clouds change — associated with changes in ocean and atmospheric circulation — in the short term and radically change the energy budget.

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).

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].

So back in 2006, the trail seemed to be closing on anthropogenic climate change in the Antarctic and associated changes in southern hemisphere circulation (SAM) as being responsible for the decline in SW WA winter rainfall.

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 most likely candidate for that climatic variable force that comes to mind is solar variability (because I can think of no other force that can change or reverse in a different trend often enough, and quick enough to account for the historical climatic record) and the primary and secondary effects associated with this solar variability which I feel are a significant player in glacial / inter-glacial cycles, counter climatic trends when taken into consideration with these factors which are, land / ocean arrangements, mean land elevation, mean magnetic field strength of the earth (magnetic excursions), the mean state of the climate (average global temperature), the initial state of the earth's climate (how close to interglacial - glacial threshold condition it is) the state of random terrestrial (violent volcanic eruption, or a random atmospheric circulation / oceanic pattern that feeds upon itself possibly) / extra terrestrial events (super-nova in vicinity of earth or a random impact) along with Milankovitch Cycles.

Independent evidence from multiple sources suggest — if «real» — that recent warming was all cloud changes associated with decadal changes in ocean and atmospheric circulation.

Although we focus on a hypothesized CR - cloud connection, we note that it is difficult to separate changes in the CR flux from accompanying variations in solar irradiance and the solar wind, for which numerous causal links to climate have also been proposed, including: the influence of UV spectral irradiance on stratospheric heating and dynamic stratosphere - troposphere links (Haigh 1996); UV irradiance and radiative damage to phytoplankton influencing the release of volatile precursor compounds which form sulphate aerosols over ocean environments (Kniveton et al. 2003); an amplification of total solar irradiance (TSI) variations by the addition of energy in cloud - free regions enhancing tropospheric circulation features (Meehl et al. 2008; Roy & Haigh 2010); numerous solar - related influences (including solar wind inputs) to the properties of the global electric circuit (GEC) and associated microphysical cloud changes (Tinsley 2008).

Shall we try to discern the cause of cloud changes associated with changes in ocean circulation?

Nor in a Southern Hemisphere context are «atmospheric circulation changes» independent of temperature changes: changes in temperature are invariably associated with atmospheric circulation changes, particularly with movements of the southern westerlies towards and away from the equator.

There is growing observational data, physical analysis of possible mechanisms, and model agreement that human - caused climate change is strengthening atmospheric circulation patterns in a way «which implies that the periodic and inevitable droughts California will experience will exhibit more severity...» «there is a traceable anthropogenic warming footprint in the enormous intensity of the anomalous ridge during winter 2013 — 2014 and the associated drought.»

Previously, Kelly was a Postdoctoral Fellow and Research Associate at the University of Washington and the University of Victoria in British Columbia, Canada where she studied the role of the changing Arctic sea ice cover on global circulation, weather, and climate using a hierarchy of numerical global climate models.

Variability associated with these latter processes, generally referred to as natural long - term climate variability, arises primarily from changes in oceanic circulation.

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.

The deep Atlantic chemical changes were similar in magnitude to those associated with glaciations, implying that the canonical view of a relatively stable interglacial circulation may not hold for conditions warmer / fresher than at present.

To the helpful set of references you've provided dealing with this broader set of questions, I would in a shamelessly self - promoting manner also offer this publication that deals with the issue of how atmospheric circulation changes associated with anthropogenic climate change might alter growing season length in the Northern Hemisphere:

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.

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

Winter precipitation is also affected by the changing atmospheric circulation, with localised increases in precipitation associated with more winter storms and a strengthened winter storm track.

We see similar excursions from the trend line in our modelling, so we feel that there is an actual variability here that is associated with year - to - year changes in the atmospheric circulation.

Changes in the trade winds, atmospheric circulation, precipitation and associated atmospheric heating set up extratropical responses.