Sentences with phrase «by dynamical model»

This mode of intra-annual tropical atmospheric variability is strongly associated with California rainfall events when its active phase shifts eastward, as is currently being suggested by dynamical model forecasts.

The authors also reported that the experimental results were reproduced by a dynamical model, based on quantum chemical calculations.

Not exact matches

Bruckstein's model replaces the pheromones by dynamical rules, but this does not deny the importance of pheromones in practice: the rules are a simplified version of «follow the previous pheromone trail but smooth it out a bit».

A global climate model or general circulation model aims to describe climate behavior by integrating a variety of fluid - dynamical, chemical, or even biological equations that are either derived directly from physical laws (e.g.

This was accomplished using a stochastic climate model based on the concept that ocean temperature variability is a slow dynamical system, a red noise signal, generated by integrating stochastic atmospheric forcing, or white noise71.

This year we received 14 June SIO submissions from dynamical models, of which 3 were from ice - ocean models forced by atmospheric reanalysis or other atmospheric model output and 12 were from fully - coupled general circulation models.

Dynamical computer models by David Mouillet and Jean - Charles Augereau of Grenoble Observatory in France suggest how a secondary dust disk can form.

By modeling the emission, they estimate the speed of the gas's rotation, allowing them to obtain a dynamical mass for the galaxy.

To understand the structure and dynamical properties of such systems, the research team headed by Ilya Shmulevich integrates data from a variety of measurements using models and techniques from mathematics, physics, and engineering.

Four years later, another team of astronomers using the 2.5 - meter Isaac Newton Telescope at Roque de los Muchachos Observatory on La Palma (and relying on evidence supplied by their own dynamical models of Sagittarius and on preliminary results from the international Sloan Digital Sky Survey team) announced that they had found an excess of young stars belonging to a stellar system located at 183,000 ly (56,000 pc) from the center of the Milky Way.

We present a simple dynamical model of stock index returns which is grounded on the ability of the Cyclically Adjusted Price Earning (CAPE) valuation ratio devised by Robert Shiller to predict long - horizon performances of the market.

The empirical relationships developed by Cohen and colleagues do a far superior job than current dynamical models in predicting recent wintertime weather.

The lag between decreases in sea ice extent during late summer and changes in the mid-latitude atmospheric circulation during other seasons (like autumn and winter, when the recent loss of sea ice is much smaller) have been demonstrated empirically, but have not been captured by existing dynamical models.

• Dynamical processes related to ice flow not included in current models but suggested by recent observations could increase the vulnerability of the ice sheets to warming, increasing future sea level rise.

The vulnerability of the ice sheets to warming could be increased by dynamical processes related to ice flow (not included in current models but suggested by recent observations) thereby increasing future sea level rise.

Irreducible imprecision from dynamical complexity can only be asessed by a systematically designed family of models.

At least partial answers can be found by studying carefully the dynamical behavior of the models, when their details are varied.

Spatial forecasts from both a statistical model submitted by Tivy and a dynamical model submitted by Zhang are discussed in the following section on the Northwest Passage.

Also the behaviour of our numerical simulations of the atmosphere would continue to be affected by the problems typical of model simulations of chaotic dynamical systems even if we could have perfect initial conditions, write perfectly accurate evolution equations and solve them with perfect numerical schemes, just because of the limited number of significant digits used by any computer (Lorenz, 1963).

Abstract The purpose of this review - and - research paper is twofold: (i) to review the role played in climate dynamics by fluid - dynamical models; and (ii) to contribute to the understanding and reduction of the uncertainties in future climate - change projections.

However, future projections based on theory and high - resolution dynamical models consistently indicate that greenhouse warming will cause the globally averaged intensity of tropical cyclones to shift towards stronger storms, with intensity increases of 2 — 11 % by 2100.

The complexity of radiative - dynamical response forced by volcanic impacts suggests that it is important to calculate aerosol radiative effects interactively within the model rather than prescribe them (Andronova et al., 1999; Broccoli et al., 2003).

Nine contributions stemmed from fully - coupled dynamical models, and five from ocean - sea ice models forced by atmospheric reanalyses or atmospheric model output.

Recent improvements in forecast skill of the climate system by dynamical climate models could lead to improvements in seasonal streamflow predictions.

As in June 2016, the median Outlook is higher for dynamical models than for statistical methods, this month by 0.2 million square kilometers (see Figure 2).

For the July report, we received 14 June SIO submissions from dynamical models: 5 from ice - ocean models forced by atmospheric reanalysis or other atmospheric model output (in green in Figure 3) and 9 from fully coupled general circulation models (in blue in Figure 3).

Dynamical processes related to ice flow — which are not included in current models but suggested by recent observations — could increase the vulnerability of the ice sheets to warming, increasing future sea level rise.

• Accept that the IPCC's dynamic models are the mediocre part of climate - science, and large dynamical models improve only at a slow decade - by - decade pace.

1) statistical models — parameters are allowed to vary until a best - fit to the data is found 2) dynamical model — parameters are fixed by the best available science (physics, etc.) regardless of how this makes the model fit the data.

In a series of Atlantic basin - specific dynamical downscaling studies (Bender et al. 2010; Knutson et al. 2013), we attempted to address both of these limitations by letting the Atlantic basin regional model of Knutson et al. (2008) provide the overall storm frequency information, and then downscaling each individual storm from the regional model study into the GFDL hurricane prediction system.

GFDL researchers have developed a regional dynamical downscaling model for Atlantic hurricanes and tested it by comparing with observed hurricane activity since 1980.

ESMs have long been based on integrating their dynamical equations numerically (e.g., numerical weather prediction models used by Weather Services).

Depending on what is meant by «robust», I would venture that modern schemes for integrating the dynamical core equations in climate models are no more «robust» than in those in the NWP codes.

I refer you to a paper by Leonard Smith, who is somewhat of a guru in the field dynamical systems, their simulation, and applications to atmospheric models http://www2.maths.ox.ac.uk/~lenny/PNAS.ps

Such accelerated flow leads to increased ice discharge into the ocean, but the relevant dynamical processes are not properly understood nor included in continental ice - sheet models, the main difficulty being the treatment of grounding - line migration in response to increased melting of ice by the ocean.