Sentences with phrase «oscillation mode»
The MCA appears related to general surface warming in the Northern Hemisphere, prolonged La Niña conditions [18, 25 — 28], and a persistent positive North Atlantic Oscillation mode [29].
http://journals.plos.org/
Furthermore, we provide a metric to characterise the false positive and false negative rates to provide further information about the reliability of a detected oscillation mode or the significance of a lack of detected oscillation modes.
This allowed the researchers to control the membrane tension and thus engineer the coupling needed to control one oscillation mode by exciting the other.
Additionally, we carried out Monte Carlo tests to obtain realistic uncertainties on the period spacings with different set of oscillation modes (for the models) and uncertainties on the frequencies.
One of the major challenges in peak bagging is identifying how many solar - like oscillation modes are visible in a power density spectrum.
Analysis of the rotational splitting of the oscillation modes additionally reveals the stellar spin axis to be nearly edge - on, which suggests that the stellar spin is likely well - aligned with the orbit of the transiting planet.
Abstract: The frequencies of oscillation modes in stars contain valuable information about the stellar properties.
We observe a high fraction of red giants in binary systems, for which g - dominated mixed modes ar... ▽ More The frequencies of oscillation modes in stars contain valuable information about the stellar properties.
Abstract: Asteroseismology of F - type stars has been hindered by an ambiguity in identification of their oscillation modes.
Information about the angular momentum distribution is inaccessible to direct observations, but it can be extracted from the effect of rotation on oscillation modes that probe the stellar interior.
The absolute mode frequencies, encapsulated in the asteroseismic variable epsilon, can help solve this impasse because the values of epsilon implied by the two possible mode identifi... ▽ More Asteroseismology of F - type stars has been hindered by an ambiguity in identification of their oscillation modes.
Not exact matches
Although scientists are unable to predict when the oscillation will switch modes, when it does, the heat, since it is not stored very deep in the ocean, can «readily resurface,» said England.
Like drums in regular drumsets, graphene membranes at the nanoscale possess a distinct set of oscillating modes that correspond to specific oscillation frequencies.
On this latter scale teleconnections manifest as a response of middle - latitude weather to the dominant modes of variability of the tropics (the Madden - Julian Oscillation and the Boreal Summer Intra-seasonal Oscillations, which similar to El Niño and La Niña characterize variations of climate but on shorter time scales).
Star B, a orange - red dwarf with a relatively calm chromosphere and acoustic p - wave mode oscillations, is an easier target for detecting wobbles from terrestrial planets, possibly within only three years of «high cadence» observations for a 1.8 Earth - mass planet (more from New Scientist and Guedes et al, 2008).
For example we know that the major modes of climate variability such as the El Nino Southern Oscillation (ENSO) and the Southern Annular Mode (SAM) project strongly onto Antarctic sea ice variability.
The impedance peaks at ferroelectric domain walls have been attributed to the excitation of the domain wall translation mode, that leads to the domain wall oscillations in the periodic potential of the lattice.
The NAO (North Atlantic oscillation) is one of the most dominant modes of global climate variability.
The North Atlantic Oscillation (NAO) is Europe's dominant mode of climate variability.
«In tapping mode, as the oscillating cantilever moves across the surface topography, the amplitude of the oscillation wants to change as it interacts with sample,» said Dr. Mohammad Maroufi, a research associate in mechanical engineering and co-author of the paper.
... On decadal to multidecadal timescales, the Pacific Decadal Oscillation (PDO), the Atlantic Multidecadal Oscillation, and the Atlantic tripole mode determine the variability of rainfall over India (Sen Roy et al., 2003; Lu et al., 2006; Zhang and Delworth, 2006; Li et al., 2008; Sen Roy, 2011; Krishnamurthy and Krishnamurthy, 2014a, 2014b, 2016b).
The results indicate that naturally induced climate variations seem to be dominated by two internal variability modes of the ocean — atmosphere system: AMO and El Niño Southern Oscillation
In this region, much of the year - to - year temperature variability is associated with the leading mode of large - scale circulation variability in the North Atlantic, namely, the North Atlantic Oscillation.
Vallis, G.K., E.P. Gerber, P.J. Kushner, and B.A. Cash, 2004: A mechanism and simple dynamical model of the North Atlantic Oscillation and Annular Modes.
Seismic studies of HD 179070 using short cadence Kepler observations show that HD 179070 has a frequencypower spectrum consistent with solar - like oscillations that are acoustic p - modes.
His research concerns understanding global climate and its variations using observations and covers the quasi biennial oscillation, Pacific decadal oscillation and the annular modes of the Arctic oscillation and the Antarctic oscillation, and the dominant spatial patterns in month - to - month and year - to - year climate variability, including the one through which El Niño phenomenon in the tropical Pacific influences climate over North America.
El Niño is the warm phase of one of the dominant modes of climate variability, the El Niño - Southern Oscillation.
Over time, however, the oscillations of the individual atoms became synchronized as different modes of the material locked in phase, emerging to become a heartbeat - like «drumming.»
What results is a slow oscillation between different modes of interfacing with an object.
«Multidecadal variability of Atlantic tropical cyclone activity is observed to relate to the Atlantic Multidecadal Oscillation (AMO)-- a mode manifesting primarily in sea surface temperature (SST) in the high latitudes of the North Atlantic.
«There is high confidence that the El Niño - Southern Oscillation (ENSO) will remain the dominant mode of natural climate variability in the 21st century with global influences in the 21st century, and that regional rainfall variability it induces likely intensifies.
Ocean and atmospheric indices — in this case the El Niño Southern Oscillation, the Pacific Decadal Oscillation, the North Atlantic Oscillation and the North Pacific Oscillation — can be thought of as chaotic oscillators that capture the major modes of climate variability.
Patterns of variability that don't match the predicted fingerprints from the examined drivers (the «residuals») can be large — especially on short - time scales, and look in most cases like the modes of internal variability that we've been used to; ENSO / PDO, the North Atlantic multidecadal oscillation etc..
A natural coupled mode of climate variability associated with both surface temperature variations tied to El Niño and atmospheric circulation changes across the equatorial Pacific (see also «Southern Oscillation Index»).
The attribution of the term at regional scales is complicated by significant regional variations in temperature changes due to the the influence of modes of climate variability such as the North Atlantic Oscillation and the El Nino / Southern Oscillation.
I take «threshold» to mean that GHG forcing could alter some natural variability like the Arctic Oscillation (which spends more and more time in its positive mode, increasing heat transport from mid-latitudes) or ENSO (more frequent or stronger El Nino events).
Ironically, while some continue to attack this nearly decade - old work, the actual scientific community has moved well beyond the earlier studies, focusing now on the detailed patterns of modeled and reconstructed climate changes in past centuries, and insights into the roles of external forcing and internal modes of variability (such as the North Atlantic Oscillation or «NAO» and the «El Nino / Southern Oscillation» or «ENSO») in explaining this past variability.
The Pacific Decadal Oscillation has flipped to its cooling mode which is La Nina dominant.
Their correlations are based on a dynamic mode of variability (the Madden - Julian Oscillation) which has nothing to do with any SST forced response in the clouds.
Specifically, the claim was made that temperatures in Churchill, Manitoba (close to the center of the Western Hudson Bay population of bears) had not risen, and that instead, any multidecadal variations in temperatures affecting the bears were related to the Arctic Oscillation (AO), a mode of natural variability.
A significant aspect of the forecast is an exuberant prediction for strengthening of the current El Niño / Southern Oscillation (ENSO) warm phase and its accompanying interaction with the Pacific - North American mode at higher latitudes.
You can't generate a black body like thermal spectrum, out of the resonance lines of molecular oscillation and vibration modes, or rotation modes.
The Atlantic Multidecadal Oscillation (AMO) or Variability (AMV) is a mode of low frequency (i.e., decadal to multidecadal) climate variability centered over the North Atlantic basin.
Response of the superparameterized Madden - Julian Oscillation to extreme climate and basic state variation challenges a moisture mode view, Journal of Climate, http://dx.doi.org/10.1175/JCLI-D-15-0790.1
More recent work is identifying climate shifts working through the El Niño - Southern Oscillation (ENSO), Atlantic Multidecadal Oscillation (AMO), Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO), Southern and Northern Annular Modes (SAM and NAM), Artic Oscillation (AO), Indian Ocean Dipole (IOD), North Pacific Oscillation (NPO) and other measures of ocean and atmospheric states.
Periods of more frequent storm events over the two last centuries are analysed first in order to link these events with possible forcing mechanisms (North Atlantic Oscillation (NAO) and Atlantic Multidecadal Oscillation (AMO) modes) triggering the most destructive storms.
This decline will be due to the items that control the climate, the sun, volcanic activity, soi oscillation, pdo / amo, nao, ao all phasing toward a cooler mode.
Ocean and atmospheric indices — in this case the El Niño Southern Oscillation, the Pacific Decadal Oscillation, the North Atlantic Oscillation and the North Pacific Oscillation — can be thought of as chaotic oscillators that capture the major modes of northern hemisphere climate variability.
Its six chapters cover temperature assessment, precipitation assessment, large - scale climate variability modes and related oscillation indices, extreme events, climate and composition of the atmosphere and cryosphere and sea level.
They constructed a numerical network model from 4 observed ocean and climate indices — ENSO, PDO, the North Atlantic Oscillation (NAO) and the Pacific Northwest Anomaly (PNA)-- thus capturing most of the major modes of climate variability in the period 1900 — 2000.