Sentences with phrase «with numerical simulations»

Paleoclimate data assimilation is emerging as a novel tool to understand low - frequency climate dynamics, blending multi-proxy paleoclimate observations with numerical simulations of Earth's climate.

In addition, tidal forces affecting the Oort Cloud come from the differential gravitational forces exerted by stars in the Milky Way's galactic disk and by the galactic core on the Sun and comets as a result of their relative location in the Solar System, which have been modelled with numerical simulations (Duncan et al, 1987).

In combinations with numerical simulations, these observations can help constrain the properties of the waves, as well as the background states for wave propagation, for instance, the atmospheric stratification.

I study the statistical properties of extrasolar planetary systems around stars of different masses, and combine these results with numerical simulations to better understand their origins and habitability.

This peculiar behavior can be totally explained with numerical simulations calculated using the supercomputer ATERUI.

Dynamical analysis for nonisolated galaxies demonstrates the feasibility of their ejection from host clusters and groups by three - body encounters, which is in agreement with numerical simulations.

Zeebe and co-authors Andy Ridgwell (University of Bristol / University of California) and James Zachos (University of California) combined analyses of chemical properties of PETM sediment cores with numerical simulations of Earth's climate and carbon cycle.

Using a pair of governing equations that assume swarmalators are free to move about, along with numerical simulations, the group found that a swarmalator system settles into one of five states:

Not exact matches

«The explanation that we came up with — which people who do numerical simulations have been suggesting for a long time — is that whatever this reservoir is with primitive helium, it must be really dense so that only the hottest, most buoyant plumes can entrain some of it to the surface,» Jackson said.

Additionally, the maximal magnitudes of volume current density were found to scale with the numerical resolution used in the computer simulation, which showed the expected scaling of current sheet development.

The researchers are now working with other collaborators to benchmark their experimental results against numerical simulations of the plating process in simple model systems.

«Advances in numerical algorithms, automatic grid generation, and increased supercomputer power will eventually make the simulations of flood waves over large durations of time possible using Titan, and even more so with Summit,» Constantinescu said.

(2) A complete numerical simulation of the motions taking place in the outer core would make it necessary to cover a wide range of scales with a very small time step, which is out of reach with current capabilities.

Ellis» observations of the droplets compared well with those of numerical simulations done by Assistant Professor Luca Giomi and postdoctoral researcher Daniel Pearce at the Instituut - Lorentz for Theoretical Physics at the Universiteit Leiden in The Netherlands.

The authors then compare the results of the numerical simulations with real images and elevation profiles, allowing them to draw conclusions regarding the influence of the climate on shaping Martian landscapes.

«But now, armed with new and better data, more sophisticated numerical simulations, and highly integrated investigations in the lab and the field, Earth's oxygenation history seems much longer and more dynamic than envisioned before, and we are getting closer to understanding the mechanisms behind such change.»

But current numerical simulations of how galaxy clusters form suggest they should be in areas with much hotter and less dense gas.

Using direct microscopic images, they observed the entire air - water interface throughout the capillary, which they then combined with ultra-precise mass measurements and numerical simulations.

Simmons, with the help of the Arctic Region Supercomputer Center, which is part of the UAF Geophysical Institute, used math equations to make detailed numerical simulations, or high - resolution models, of under - ocean wave processes.

The simulation was visualized with a video made by combining millions of points representing numerical data about density, gravitational fields, and other properties of the gases that make up the collapsing stars.

The numerical simulations of the seafloor also showed that the pockmarks in Nyegga are likely associated with this phenomenon because they are located right in the area of the largest gas hydrate dissociation event at the end of the Ice Age.

Professor Claude - André Faucher - Giguère and his research group, along with collaborators from the FIRE («Feedback In Realistic Environments») project, which he co-leads, had developed sophisticated numerical simulations that produced realistic 3 - D models of galaxies, following a galaxy's formation from just after the Big Bang to the present day.

With the aid of numerical simulation, the scientist and his team have developed a crash - optimized track design for bending stress such as might arise when a car collides head - on with a tree or is hit by another car from the sWith the aid of numerical simulation, the scientist and his team have developed a crash - optimized track design for bending stress such as might arise when a car collides head - on with a tree or is hit by another car from the swith a tree or is hit by another car from the side.

Francois Callewaert, a McCormick School of Engineering graduate student who works with Aydin, developed the inverse design algorithm and performed the numerical simulations.

This session examined the biogeochemical processes that are likely to affect the evolution of the Earth system over the coming decades, with a focus on the dynamics of marine and terrestrial ecosystems and the development of improved understanding through (a) fieldwork and laboratory experiments, (b) development of new observational datasets, both modern and palaeo, and (c) simulations using numerical models.

Using a numerical model developed by the Max Planck Institute for Meteorology and the German Weather Service, the team created two simulations of convectional organization over a 312,000 - square - kilometer grid with 1 - kilometer spacing.

On March 5, 2015, a team of astronomers announced that numerical simulations constrain the size of planetary candidate Alpha Centauri Bb (with orbital period P = 3.24 days; and semi-major axis a = 0.042 AU) to less than 2.7 Earth - masses at an inclination of 45 to 53 degrees relative to Stars» AB orbital plane (Plavchan et al, 2015).

Studies such as Otto et al. (2012) display how the numerical scale of the simulation numbers allows for clear separation between a climate with lower level of heat - trapping gases (1960s) and the recent period (2000s), such that the 2010 heat wave in western Russia was more likely to occur with the additional warming due to climate change (Figure 3).

As an application of our method, we examine thermal phase mixing in the context of Ginzburg - Landau models with short - range interac... ▽ More We show how to achieve lattice - spacing independent results in numerical simulations of finite - temperature stochastic scalar field theories.

Among the numerous star - planet interaction (SPI) models that have been developed, magnetohydrodynamic (MHD) simulations combine state of the art numerical models of cool star magnetospheres with simplified models of planets.

The models include a new wind braking law based on recent numerical simulations of magnetized stellar winds and specific dynamo and mass - loss prescriptions a... ▽ More We present new models for the rotational evolution of solar - like stars between 1 Myr and 10 Gyr with the aim to reproduce the distributions of rotational periods observed for star forming regions and young open clusters within this age range.

The GPI imaging furthermore clearly resolve the disk gap, allowing us to measure its width (~ 5 AU) and depth (~ 50 %) and thereby facilitating direct comparison with detailed numerical simulations of planets forming in circumstellar disks.

Then we optimized the reactor prototypes with flow modeling and numerical simulations and the resulting new reactor generation is what we showed in this research paper.

We are talking about very coarse numerical simulations with largely guessed inputs and a lot of missing physics, not blanket - bans of all poor models everywhere.

Dr. Dallas Kennedy has coined the phrase «uncontrolled numerical approximations» for all climate model simulations inconsistent with the observed climate and insufficiently scrutinized.

With my background I ought to be focusing on poor modelling of fluid dynamics and convection, chaotic dynamics and the fudges involved in numerical simulations — like Chris Essex does.

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).

Every book I've ever read on statistical mechanics or thermodynamics is wrong — and you can safely assume I've read a few, since I did numerical simulations of both static and dynamic critical phenomena that actually were published in places like Physical Review, with referees and everything — or figure 2 above makes it clear that there is no possibility that figure 1 is correct.

Studies such as Otto et al. (2012) display how the numerical scale of the simulation numbers allows for clear separation between a climate with lower level of heat - trapping gases (1960s) and the recent period (2000s), such that the 2010 heat wave in western Russia was more likely to occur with the additional warming due to climate change (Figure 3).

Users of chemistry - climate models (CCMs) with particular focus on long - term numerical simulations using CCMs for the detailed investigation of model feedbacks between ozone chemistry, ozone depleting substance (ODS) trends, and climate.

Using a numerical model developed by the Max Planck Institute for Meteorology and the German Weather Service, the team created two simulations of convectional organization over a 312,000 - square - kilometer grid with 1 - kilometer spacing.

Re the loop current (147, 156), with the reminder that I'm not a climatologist, just an avid reader — this http://ctr.stanford.edu/ResBriefs03/dedietrich.pdf Center for Turbulence Research 2003 Nonlinear Gulf Stream Interaction with the western boundary current: observations and a numerical simulation

Doing this renders the D = S assumption invalid, as we have an equilibrium occurring (an unstable one, but an equilibrium) without D = S being true, which leaves economists with few tools to work with aside from numerical simulation and the under - developed branch of economics dealing with complex systems analysis.

We analyze the data from the moorings and from the CTD using geophysical fluid dynamics, and compare results with simulations from numerical models.

In an idealized three - dimensional numerical simulation of the Northern Hemisphere winter stratosphere, doubling the CO2 concentration leads to the formation of an Arctic ozone hole comparable to that observed over Antarctica, with nearly 100 % local depletion of lower - stratospheric ozone.