Sentences with phrase «oscillation cycle»

Yet most research in the field has focused on improving predictions of regional ocean warming driven by long - term climate change and short - term climate patterns like the El Niño - Southern Oscillation cycle.

The start and end years must be at the same stage of the oscillation cycle.

«The driving forces of climate change were investigated and the results showed two independent degrees of freedom — a 3.36 - year cycle and a 22.6 - year cycle, which seem to be connected to the El Niño — Southern Oscillation cycle and the Hale sunspot cycle, respectively.

Such fluctuations have the effect of modulating the El Niño - Southern Oscillation cycle.

The peer - reviewed report, compiled by 378 scientists from 48 countries around the world, notes that back - to - back La Niñas (the build - up of cool waters in the equatorial eastern Pacific as part of the El Niño Southern Oscillation cycle) in 2011 affected regional climates and influenced many of the world's significant weather events throughout the year.

Effects of the Pacific Decadal Oscillation are not as intense as the El Niño - Southern Oscillation cycle (Mantua and Hare 2002).

It is important to note that any potential effects will be spatially and temporally variable, depending on current forest conditions, local site characteristics, environmental influences, and annual and decadal patterns of climate variability, such as the El Niño - Southern Oscillation cycle, which can drive regional weather and climate conditions.

-- 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).

Tans initially expected February to be the first month of the year above 400 ppm, but predicting that threshold is tricky because CO2 concentrations depend both on emissions and natural ecosystem processes, which can be influenced by climate phenomena like the El Nino Southern Oscillation cycle, he said.

During each of the oscillation cycles a wave travels over the vocal folds from the lungs to the mouth, which keeps the oscillations going.

A team led by Prof. Laszlo Veisz has developed a novel high - power laser capable of emitting bursts of infrared light — each consisting of only a few oscillation cycles — which contain 100 times as many photons per pulse as in conventional systems.

On shorter time scales, and layered on top of Pacific Decadal Oscillation variation, the Pacific North American pattern and the El Niño - Southern Oscillation cycles (see Climate chapter) can also affect variation in snowpack.

Most scientists attribute this «pause» in warming to natural climate cycles that have a cooling effect on the planet, especially ocean oscillation cycles.

These physical factors have been combined into a Multivariate ENSO Index (MEI) for evaluating the strength of El Niño / Southern Oscillation cycles..

Explanations for the pause in global warming range from ocean oscillation cycles to Chinese coal plant emissions, volcanic activity to some scientists even saying there is no hiatus in warming.

Not exact matches

19 The existence of a limit cycle requires that there be two time - scales in the underlying chemical mechanism (e.g., John W. Avitabile, Jr., and Andrew C. DeRocco, «Time Delay, Epigenetic Dynamics and Circadian Oscillations,» Biophys.

Their share of the vote, notwithstanding short - term oscillations within the political cycle, has fallen steadily overall since the second world war.

The oscillation emerged at a frequency of 35 cycles per second, or Hertz, and sped up to 250 Hz before disappearing 0.25 seconds later.

PER and TIM block the ability of CLOCK to turn on these genes at the same time as they are producing the oscillations of the central feedback loop — setting up extended patterns of cycling gene activity.

Looking at shifts in Manley's winter temperatures from year to year, he says, gives a good reading of important natural cycles that influence climate, such as changes in ocean circulation like the North Atlantic Oscillation.

«By applying an intensity of 100 trillion watts per cm2, we were able to go beyond the Death Valley threshold and trap the electron near its parent atom in a cycle of regular oscillations within the electric field of the laser,» Jean - Pierre Wolf says enthusiastically.

The climatic change at issue is known as the Atlantic Multidecadal Oscillation (AMO), a periodic cycle of warming and cooling of surface temperatures in the North Atlantic.

The North Atlantic Oscillation, a large - scale natural weather cycle, went into a phase in which summer atmospheric conditions favored more incoming solar radiation and warmer, moist air from the south.

The El Niño - Southern Oscillation (ENSO) cycle causes ripples through the global climate, changing rainfall and air currents.

In April 2008, scientists at NASA's Jet Propulsion Laboratory announced that while the La Niña was weakening, the Pacific Decadal Oscillation (PDO)-- a larger - scale, slower - cycling ocean pattern — had shifted to its cool phase.

Overprinted on that is a longer term oscillation of sea surface temperatures in the Pacific, a cycle that lasts perhaps 50 to 70 years.

Australia's extremes of drought and flood see - saw with the cycles of the El Niño and La Niña climate oscillation.

There are two big climate influences on hurricanes — the Pacific Ocean's El Niño / La Niña cycle and the Atlantic Multidecadal Oscillation (AMO).

The El Niño - Southern Oscillation, or ENSO, is a naturally occurring climate cycle in which sea - surface temperatures in the equatorial Pacific Ocean fluctuate.

A strange 12 - hour cycle of oscillations that remained after the local traffic had been accounted for was attributed to minute Earth movements caused by the tides in the North Sea, 150 miles away.

With helioseismology data, which track acoustic oscillations on the sun, researchers can follow the development of the jet stream thousands of kilometers below the sun's surface, potentially allowing for better forecasts of the timing of the solar cycle.

The study looked at some possibilities, but other than an apparent link between El Niño and tornado activity in Oklahoma, couldn't find any links to major climate cycles, such as the Pacific Decadal Oscillation or the Atlantic Oscillation.

This correlates well with the cycles of El Niño Southern Oscillation pattern and measured changes in the amount of the energy from the sun.

Both real - world observations and the team's simulations reveal that the abnormally strong winds — driven by natural variation in a long - term climate cycle called the Interdecadal Pacific Oscillation — have, for the time being, carried the «missing» heat to intermediate depths of the western Pacific Ocean.

The researchers compared this long fire record with weather patterns: the well - known El Nino and La Nina cycles that occur every two to seven years, as well as longer cycles called the Pacific Decadal Oscillation and the Atlantic Multidecadal Oscillation (AMO).

He believes that changes in ocean circulation have warmed the Atlantic and increased hurricane activity in the past decade and that this is simply the result of normal oscillation in natural climate cycles.

The dynamics of the transitional forest «are characterized by robust, regular oscillations that belong to the dynamical class of «limit cycles.»

She says some of that warming could have been the result of a natural cycle known by two names — the Interdecadal Pacific Oscillation and the Pacific Decadal Oscillation.

The phenomenon in question is the El Niño — Southern Oscillation, or ENSO, a global climatic cycle that affects both sides of the tropical Pacific Ocean and beyond.

With helioseismology data, which track acoustic oscillations on the sun, researchers can check in on the progress of the jet stream at depths of roughly 1,000 kilometers, potentially allowing for better forecasts of the timing of the solar cycle.

In the blink of an eye, a wave of visible light completes a quadrillion (1015) oscillations, or cycles.

Van Houtan and Halley think the two oceanic cycles — the Pacific Decadal Oscillation (PDO) and the Atlantic Multidecadal Oscillation (AMO)-- can make or break a young turtle's survival; favorable cycles bring food and good weather, for example.

For climate scientists, a major question is whether the coming event will be big enough to flip the world into the warm phase of the Pacific Decadal Oscillation (PDO), a 20 - to 30 - year climate cycle that is related to El Niño or La Niña conditions.

There is a clear indication that ENSO [the El Niño — Southern Oscillation, or El Niño / La Niña cycle] is not the only game in town anymore.

Global warming could impact the El Niño Southern Oscillation (ENSO), altering the cycles of El Niño and La Niña events that bring extreme drought and flooding to Australia and many other Pacific - rim countries.

For the past few decades, the Interdecadal Pacific Oscillation, as the influential cycle is known, has been in what's called a negative phase, meaning trades winds have been strong.

In 1995, this cycle, known as the Atlantic Multidecadal Oscillation, switched to a phase that generally leads to higher Atlantic Ocean temperatures.

My co-authors and I have argued in previous papers that climate cycles on early Mars could have been driven by oscillations in the carbonate - silicate cycle, which would have provided transient warming from the accumulation of greenhouse gases by volcanoes and subsequent loss by weathering.

Thus the study shows that that iRAM simulates recently observed cloud cover changes in this the eastern Pacific more accurately than the GCMs, and iRAM also successfully simulates the main features of the observed interannual variation of clouds in this region, including the evolution of the clouds through the El Niño Southern Oscillation (ENSO) cycle.