Sentences with phrase «system model simulations»

The terrestrial ecosystem portion of the Earth system model simulations were conducted at the National Energy Research Scientific Computing Center (NERSC), a DOE Office of Science User Facility located at Berkeley Lab.

Fan is also looking at how severe storms and these physical impacts can be represented in earth system model simulations.

From these relationships and reconstructed temperature time series, we diagnose glacial − interglacial time series of dust radiative forcing and iron fertilization of ocean biota, and use these time series to force Earth system model simulations.

A large ensemble of Earth system model simulations, constrained by geological and historical observations of past climate change, demonstrates our self ‐ adjusting mitigation approach for a range of climate stabilization targets ranging from 1.5 to 4.5 °C, and generates AMP scenarios up to year 2300 for surface warming, carbon emissions, atmospheric CO2, global mean sea level, and surface ocean acidification.

Existing Earth System Model simulations indicate that the ability of tropical land ecosystems to store carbon will decline over the 21st century.

Not exact matches

Jason Crusan, director of advanced exploration systems at NASA, says the space agency already uses virtual reality technology in astronaut training and spacecraft simulations, so it was logical to extend that successful model to inspire and educate the next generation of space explorers and scientists.

Systems analysis, elaborate simulation techniques, automated access to central data banks, information theory, game Theory, and the use of socio - economic models, often mathematically stated, all aided and abetted by the computer, make possible a massive application of data not hitherto possible.

These computer simulations of an abstract model (closely related to the features which characterize self - organizing chemical and biological systems) clearly show that the origin of intrinsic capacity for self - definition can be understood in detail, at least in relatively simple cases.

It speaks of operations research, systems analysis, technological forecasting, information theory, game theory, simulation techniques, decision theory, Delphi method, cross-impact matrix analysis, statistical time - series, stochastic models, linear programming, input - output economics, computer based command and control systems, and so on.

These «simulation models» are prominent in the new fields of «operations research» and «systems analysis».

Computer simulations have become a useful part of mathematical modelling of many natural systems in physics, chemistry and biology, human systems in economics, psychology, and social science and in the process of engineering new technology, to gain insight into the operation of those systems.

«Not only is our physics - based simulation and animation system as good as other data - based modeling systems, it led to the new scientific insight that the limited motion of the dynein hinge focuses the energy released by ATP hydrolysis, which causes dynein's shape change and drives microtubule sliding and axoneme motion,» says Ingber.

Which suggests the chief application of Batygin's formalism may not be to model a wide range of systems but rather to make models for a narrow range of systems far less computationally expensive than N - body simulations.

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

One particularly useful way to tap their knowledge would be to commission economics - based models of the higher education system with the goal of letting policy - makers examine the effects of funding and policy changes via simulation.

The study used simulations from the Community Earth System Model (CESM) run at the National Center for Atmospheric Research (NCAR) and examined warming scenarios ranging from 1.5 degrees Celsius all the way to 4 degrees Celsius (7.2 degrees Fahrenheit) by the end of the century.

J. T. Wang, an engineer at GM and a lead technical adviser to the GHBMC, speculates that the virtual - body model may eventually run fast enough to create real - time simulations that enable vehicles with such systems to give a more specific picture of the crash scene.

Canadell added that while the models represent the best possible simulation of Earth system components, they are continually being improved.

By building the model into hardware or a computer simulation, researchers can cool the system until it reaches its lowest energy, revealing the solution.

The study, «The effect of horizontal resolution on simulation quality in the Community Atmospheric Model, CAM5.1,» has been published online in the Journal of Advances in Modeling Earth Systems.

A 2000 - year transient climate simulation with the Community Climate System Model shows the same temperature sensitivity to changes in insolation as does our proxy reconstruction, supporting the inference that this long - term trend was caused by the steady orbitally driven reduction in summer insolation.

The system will also allow them to use simulation interfaces to evaluate potential future operating models featuring, say, dynamic electricity pricing or forecast - based facility management.

The researchers ran more than 2500 simulations based on a model they developed that projected the precise orbits and interactions of the entire solar system over the next 5 billion years.

Likewise, while models can not represent the climate system perfectly (thus the uncertainly in how much the Earth will warm for a given amount of emissions), climate simulations are checked and re-checked against real - world observations and are an established tool in understanding the atmosphere.

The direct microscopic modelling of the system, by extensive computer simulations, has confirmed the existence of this surprising regime and other predictions of the theory.

Numerical simulations based on this model recapitulate the non-linear dynamics observed in experimental model systems.

Special Online Collection: Modeling the Mind This week, Science and its online companion sites explore how scientists are using mathematical models and computer simulations to study and predict the behavior of the nervous system.

Modeler Bette Otto - Bliesner of the National Center for Atmospheric Research in Boulder and paleoclimatologist Jonathan Overpeck of the University of Arizona matched results from the Community Climate System Model and climate records preserved in ice cores, exposed coral reefs, fossilized pollen and the chemical makeup of shells to determine the accuracy of the computer simulation.

NASA researchers have used last year's observations to refine computer simulations of the system and to produce 3D printed models (pictured, and available to download), which have helped them discover fingerlike protrusions from the bow shock.

Conor Purcell from Cardiff University's School of Earth and Ocean Sciences, said: «Using the simulations performed with our climate model, we were able to demonstrate that the climate system can respond to small changes with abrupt climate swings.

«Using a model to reproduce a biological system precisely is challenging, and we have been working on this simulation for a very long time.

FMI has been involved in research project, which evaluated the simulations of long - range transport of BB aerosol by the Goddard Earth Observing System (GEOS - 5) and four other global aerosol models over the complete South African - Atlantic region using Cloud - Aerosol Lidar with Orthogonal Polarization (CALIOP) observations to find any distinguishing or common model biases.

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.

Interests: Understanding impacts of human activities on the biogeochemistry of ecological systems using a combination of field studies and simulation modeling; conducts research at Harvard Forest LTER.

Titan's GPUs are highly parallel, hurtling through repetitive calculations such as those modeling the large system of atoms under a vast array of configurations in the trimer simulation.

simulation A model, often made using a computer, of some conditions, functions or appearance of a physical system.

His research focus is the theoretical analysis of stem cell organization using system biological approaches such as mathematical modelling and computer simulation.

The simulations are necessary to establish models of the atmospheres of far - distant worlds, models that can be used to look for signs of life outside the solar system.

They compared the empirical data to the model simulations of the MJO, where much of the MJO processes are currently represented with parameterizations, a way to express complex climate systems in a computationally efficient way.

But a trimer simulation requires modeling almost 400,000 atoms with increasingly complex physics calculations as the system gets larger.

(Bottom left) Multi-model average SST change for LGM PMIP - 2 simulations by five AOGCMs (Community Climate System Model (CCSM), Flexible Global Ocean - Atmosphere - Land System (FGOALS), Hadley Centre Coupled Model (HadCM), Institut Pierre Simon Laplace Climate System Model (IPSL - CM), Model for Interdisciplinary Research on Climate (MIROC)-RRB-.

Running simulations with an Earth System model, the researchers find that if atmospheric CO2 were still at pre-industrial levels, our current warm «interglacial» period would tip over into a new ice age in around 50,000 years» time.

We have observed nucleation droplets in our Langevin simulations of a two - dimensional model of martensitic transformations and have determined that the structure of the nucleating drople... ▽ More Systems with long - range interactions quenched into a metastable state near the pseudospinodal exhibit nucleation that is qualitatively different than the classical nucleation observed near the coexistence curve.

«In order to investigate the influence of the number of traits on coevolution, we used quantitative genetics and individual - based simulations to analyze a model of a victim - exploiter system,» Gilman said.

Examples include capacity planning tools (long - term energy system planning), production cost simulations (large - scale operational impacts on the energy system (e.g., PLEXOS, GridView)-RRB- and fixed price optimization models (near - term business case analysis).

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).

To improve parameterization, the researchers propose developing Earth system models that learn from the rich data sets now available (thanks, in large part, to satellite observations) and high - resolution simulations on local scales.

It is a permanent part of the German Max Planck Instituut's climate system model, which is used for global climate change simulations in the IPCC reports and elsewhere.

Building on the handling model from GRID, the new TrueFeel Handling System will use real physics to hit a sweetspot between accessibility and simulation and deliver handling that is approachable yet challenging to master.

The rapid growth of computer - based systems such as simulation models, databases, and artificial intelligence decision - support systems, is evidence of the impact of computer and information technologies on concrete science and technology.