Sentences with phrase «in atmospheric patterns»

A phenomenon known as the El Niño - Southern Oscillation is characterized by extremes in Pacific Ocean temperatures and shifts in atmospheric patterns.

Change in atmospheric patterns pushed Russian river water into Canadian Arctic basin.

Trends in atmospheric patterns conducive to seasonal precipitation and temperature extremes in California

But ocean temperatures alone don't define an El Niño; CPC forecasters also look for the corresponding shifts in atmospheric patterns, namely a weakening of the typical east - to - west trade winds over the region.

El Niño is a key factor in making hurricane seasonal forecasts because the changes in atmospheric patterns over the tropical Pacific that it ushers in have a domino effect on patterns over the Atlantic, tending to suppress hurricane formation.

Not exact matches

Together, they describe variations in atmospheric heat and moisture, and how those translate into weather patterns.

Aaron Kennedy, an assistant atmospheric sciences professor, recently encountered an atmosphere unlike anything he normally finds in his field work on the prevalence of extreme weather patterns around the world: the halls of Congress.

The timing of such uplift is important in helping scientists to understand how mountains form, how they erode and what impact this may have on global atmospheric circulation patterns and climate.

While natural patterns of certain atmospheric and ocean conditions are already known to influence Greenland melt, the study highlights the importance of a long - term warming trend to account for the unprecedented west Greenland melt rates in recent years.

The new hi - res composite images change that, suggesting instead that prominences could be one of the driving forces for the solar wind, since to create the smoke rings, and other patterns in the corona, they must be creating much larger atmospheric disturbances than previously thought, with a much longer range.

Even though the information of the exact species present in the monitored area and pollen release patterns of the individual species are far from complete, Peel and his colleagues conclude that the best way to explain the three concentration patterns is to look at the succession of different grass species with different diurnal flowering patterns which dominate the atmospheric pollen loads as the season progresses.

«The atmospheric winds of brown dwarfs seem to be more like Jupiter's familiar regular pattern of belts and zones than the chaotic atmospheric boiling seen on the Sun and many other stars,» said study co-author Mark Marley at NASA's Ames Research Center in California's Silicon Valley.

«The jet stream changes character every 10 to 12 days, and we use this pattern to predict the weather,» said Anthony Lupo, professor of atmospheric science in MU's School of Natural Resources, which is located in the College of Agriculture, Food and Natural Resources.

Meanwhile, dry regions in the subtropics will get even drier because of atmospheric circulation patterns that carry water vapor away to higher latitudes.

However, flow increased in some sub-tropical regions, owing to disruption to atmospheric circulation patterns.

Knowing what to look for Previous studies investigating heat wave prediction have looked for patterns in the tropics, but this research was interesting because the predictive factor is an atmospheric phenomenon that occurs in the middle latitudes, Schubert said.

Computer model finds historical patterns In order to learn that this atmospheric pattern exists in advance of heat waves, Teng and her co-authors had to look far back in the history of heat waves — from before weather records were kepIn order to learn that this atmospheric pattern exists in advance of heat waves, Teng and her co-authors had to look far back in the history of heat waves — from before weather records were kepin advance of heat waves, Teng and her co-authors had to look far back in the history of heat waves — from before weather records were kepin the history of heat waves — from before weather records were kept.

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).

Venusian atmospheric dynamics, in ultraviolet light, show intricate meteorological patterns.

All around us, they say, atmospheric currents tumble in cyclonic or anticyclonic patterns that remain hidden until a dust devil paints them brown.

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.

Coumou has examined the waviness of the jet stream in previous work and has suggested that its large twists and turns, slow - moving undulations called Rossby waves, promote atmospheric «blocking» — a kind of stagnation of weather patterns that he says can exacerbate heat waves.

Immense northern storms on Saturn can disturb atmospheric patterns at the planet's equator, finds the international Cassini mission in a study led by Dr Leigh Fletcher from the University of Leicester.

The data show an increase in the occurrence of these specific atmospheric patterns, which is statistically significant at the 90 percent confidence level.

The pattern of chemical weathering preserved in the paleosol is compatible with elevated atmospheric O2 levels at that time.

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.

Another principal investigator for the project, Laura Pan, senior scientist at the National Center for Atmospheric Research in Boulder, Colo., believes storm clusters over this area of the Pacific are likely to influence climate in new ways, especially as the warm ocean temperatures (which feed the storms and chimney) continue to heat up and atmospheric patterns continue to evolve.

To get around those problems in relating tornadoes to climate, the Columbia team shifted its focus from the tornadoes themselves to the atmospheric factors that are crucial for tornado formation, factors that are themselves altered by the ENSO pattern.

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.

The UM Rosenstiel School researchers used historical observations of cloud cover as a proxy for wind velocity in climate models to analyze the Walker circulation, the atmospheric air flow and heat distribution in the tropic Pacific region that affects patterns of tropical rainfall.

Their assessment revealed a consistent picture of increasing nitrate concentrations, the magnitude and pattern of which can only be explained by the observed increase in atmospheric nitrogen deposition.

Researchers from the University of California Irvine have shown that a phenomenon known as the Atlantic Multidecadal Oscillation (AMO)-- a natural pattern of variation in North Atlantic sea surface temperatures that switches between a positive and negative phase every 60 - 70 years — can affect an atmospheric circulation pattern, known as the North Atlantic Oscillation (NAO), that influences the temperature and precipitation over the Northern Hemisphere in winter.

Air naturally poor in ozone was, for example, lifted into the lower stratosphere above Britain from the sub-tropical Atlantic, by an unusual pattern of atmospheric circulation.

As a result of atmospheric patterns that both warmed the air and reduced cloud cover as well as increased residual heat in newly exposed ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Survey.

Scientists have fingerprinted a distinctive atmospheric wave pattern high above the Northern Hemisphere that can foreshadow the emergence of summertime heat waves in the United States more than two weeks in advance.

The study stops short of attributing California's latest drought to changes in Arctic sea ice, partly because there are other phenomena that play a role, like warm sea surface temperatures and changes to the Pacific Decadal Oscillation, an atmospheric climate pattern that typically shifts every 20 to 30 years.

The printed pattern (example pictured) naturally fades over time in the presence of oxygen but remains visible for several days in normal atmospheric conditions.

Antarctic climate results from a complex mix of oceanic and atmospheric circulation patterns, so there could also be other components affecting the amount of snow accumulation in the region, Bromwich said.

the Arctic has shown a pattern of strong low - level atmospheric warming over the Arctic Ocean in autumn because of heat loss from the ocean back to the atmosphere....

Weather patterns are generally described in regional terms but they do not occur in isolation because they are part of the global atmospheric system.

The atmospheric circulation response seems to be sensitive to the magnitude and geographic pattern of sea - ice loss and, in some cases, to the background climate state.

For example, in Earth atmospheric circulation (such as Hadley cells) transport heat between the warmer equatorial regions to the cool polar regions and this circulation pattern not only determines the temperature distribution, but also sets which regions on Earth are dry or rainy and how clouds form over the planet.

A review article recently published in Reviews of Geophysics gave an overview of current understanding of «teleconnections» in atmospheric circulation and weather patterns, focused specifically on interactions that occur between tropical and midlatitude regions.

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).

In one area of study, PNNL atmospheric scientists are getting a clearer picture of factors that control winter cloud patterns and western mountain snowpack.

Variations in regional precipitation and temperature have long been determined to be strongly correlated with natural oceanic - atmospheric circulation patterns, or oscillations.

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.

Easiest to see through a large telescope would be its atmospheric features, chiefly the swirling white cloud patterns of midlatitude and tropical storms, ranged in roughly latitudinal belts around the planet.

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.

Global warming had increased the amount of atmospheric moisture available to condense into rain, and La Niña, a circulation pattern that can produce heavy rains in Pakistan, was in progress.