Sentences with phrase «scale simulation model»

The model is a large - scale simulation model designed to replicate how energy markets function and is the principal tool used to generate detailed sector - by - sector and region - by - region projections for the World Energy Outlook (WEO) scenarios.

The model is a large - scale simulation model designed to replicate how energy markets function and is the principal tool used to generate detailed sector - by - sector and region - by region projections for the WEO scenarios.

Not exact matches

Simulations of gas flows on large scales, as well as the physics of small - scale processes, support this model for DCBH formation.

They used this novel simulation approach to build a model of a sperm cell that demonstrates cellular movement from individual dynein protein molecules in the tail all the way up to the whole cell, allowing them to observe how changes at the atomic level are reflected in larger - scale structures.

Nelson pointed out that while current - generation supercomputers have enabled simulations that have largely overcome most fundamental issues related to massive - scale cosmological modelling, there are still opportunities for improvement.

Canup is one of the leading scientists using large - scale hydrodynamical simulations to model planet - scale collisions, including the prevailing Earth - Moon formation model.

«We have in the Luzon Strait an oceanic laboratory where we can test our theoretical models and simulations to see them play out on a small scale.»

However, one quickly reaches the bounds of today's available computing power when large - scale experiments need to be modeled numerically while retaining all important physical effects, and exhaustive simulations of fusion reactor plasmas as a whole are still not feasible.

The small - scale processes giving rise to thunderstorms make their direct simulation in climate models impossible given current computing power.

We are surprised that Riegl and Purkis criticize our LV model for the potential hazards of applying it to management (something we don't do, or recommend), then argue for a global - scale biological introduction experiment based upon simulations from a single model (11).

«The alignments in the new data, on scales even bigger than current predictions from simulations, may be a hint that there is a missing ingredient in our current models of the cosmos,» concludes Dominique Sluse.

Such large - scale modeling and simulation requires the heft of a supercomputer, and for this effort the team used Blue Waters at the National Center for Supercomputing Applications at the U. of I.

The observations fit well with computer simulations, and can be used to refine models of how large - scale patterns, such as the distributions of galaxies and clusters of galaxies, came to be.

At the Vienna University of Technology, theoretical models and large - scale computer simulations have been developed, in order to analyse and interpret the results.

«There are many scenarios in which heavy elements from the first supernovae were taken up into second - generation stars, but cosmological simulations model them on the largest scales.

Method development comprises construction and analysis of mathematical models that describe complex scientific, technical as well as socio - economic processes, the development of efficient algorithms for simulation or optimization of such models, accompanying development of visualization, large scale data management and data analysis techniques, and transfer of algorithms into efficient software and high performance computing techniques.

Future work includes building a multiscale simulation framework that establishes connections between the proposed model to atomistic models based on explicit parametrization of relevant transport and oxidation parameters via appropriate small - scale models.

It should also be noted that the authors examined whether the large - scale ocean circulation, the Meridional Overturning Circulation (MOC), and two other ocean phenomena - the Pacific Decadal Oscillation (PDO) and Atlantic Meridional Oscillation (AMO)- could explain the warming in the 20th century simulations, but found no evidence in the models.

Prof. Vijay Pande and his group have pioneered several areas of simulation methodology (including large - scale distributed computing via the Folding@home program, Molecular Dynamics on GPUs, and Markov State Model approaches) as well as applications of these tools to the study of protein folding.

To perform the simulations, we used the instrumental point spread function (PSF) and model spectra of L and T - type objects scaled in contrast with respect to the host star.

The modeling approach was developed through support of the Materials Synthesis and Simulations across Scales (MS3) Initiative, a Laboratory Directed Research and Development Program at PNNL.

High - resolution simulations are being performed that resolve the local and regional variations of particulate characteristics to obtain a better understanding of important aerosol processes that need to be incorporated into larger - scale climate models.

Iorio, J.P., et al., 2004: Effects of model resolution and subgrid scale physics on the simulation of precipitation in the continental United States.

Argonne has collaborated with the University of Illinois, teaming up two supercomputers to perform simulation and data analysis of extremely large - scale, computationally intensive models of the universe.

Required capabilities include kinetic turbulence simulations, related three - dimensional fluid simulations with gyro - Landau kinetic extensions, large - scale molecular dynamics simulations of materials, and couplings of lower - dimensional models (for fast analyses) to simulate interactions between zones and particle species.

In sharp contrast, model simulations of internal and total natural variability can not produce the same sustained, large - scale warming of the troposphere and cooling of the stratosphere.

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).

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.

Its lead author, Robin Canup, is an expert in using large - scale hydrodynamical simulations to model planet - scale collisions.

Through the use of computational fluid dynamic (CFD) simulations as well as testing of 40 % scale models in the company's advanced wind tunnel facility in Ohio, the NSX development team fine - tuned the various body shapes, intake and exhaust vents and vehicle strakes to reduce aerodynamic drag, create downforce, maximize cooling and efficiently exhaust unwanted heat.

Other AgMIP initiatives include global gridded modeling, data and information technology (IT) tool development, simulation of crop pests and diseases, site - based crop - climate sensitivity studies, and aggregation and scaling.

The model weather is the part of the solution (usually high frequency and small scale) that is uncorrelated with another simulation in the same ensemble.

Figure 1.4 http://cybele.bu.edu/courses/gg312fall02/chap01/figures/figure1.4.gif shows the natural variability of the annual mean surface temperature on several different spatial scales from a climate model simulation for 200 years.

I haven't got to the bottom of this yet, but there are several plausible explanations: (i) some of the simulations in the downloaded models from the CMIP3 ensemble stop early, affecting the whole envelope of results, (ii) the use of common EOFs fail to capture large - scale temperature patters that are too different from the past.

Member of the team Alena Kimbrough says, «We've shown ENSO is an important part of the climate system that has influenced global temperatures and rainfall over the past millennium... Our findings, together with climate model simulations, highlight the likelihood that century - scale variations in tropical Pacific climate modes can significantly modulate radiatively forced shifts in global temperature.»

Pressel, K. G., S. Mishra, T. Schneider, C. M. Kaul, Z. Tan, 2017: Numerics and subgrid - scale modeling in large eddy simulations of stratocumulus clouds.

Jerry specializes in understanding the impacts of human activities on the biogeochemistry of ecological systems from local to global scales, using a combination of field studies and simulation modeling.

Any atmosphere / ocean coupled model worth its salt should have phenomena similar to these as emergent from simulations (that is with extent and time scales similar to the real thing).

We quantify sea - level commitment in the baseline case by building on Levermann et al. (10), who used physical simulations to model the SLR within a 2,000 - y envelope as the sum of the contributions of (i) ocean thermal expansion, based on six coupled climate models; (ii) mountain glacier and ice cap melting, based on surface mass balance and simplified ice dynamic models; (iii) Greenland ice sheet decay, based on a coupled regional climate model and ice sheet dynamic model; and (iv) Antarctic ice sheet decay, based on a continental - scale model parameterizing grounding line ice flux in relation to temperature.

They gather the control simulations from 14 models together into one pot and decompose the variability into patterns, isolating that pattern whose time series has the largest integral time scale (or decorrelation time).

Finally, simulations having finer spatial detail (i.e., «downscaled» climate model projections) do not necessarily have greater accuracy than coarser - resolution simulations; they add contextual detail related to factors such as regional topography and coastlines but may still retain the same basic climatic features simulated at larger scales.

The planning tool SUDPLAN makes information available for the period 1961 - 2100, from a number of climate scenarios scaled down across Europe, complete with hydrological simulations and results from an air pollution model.

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.

Don't climate models break the Earth (mostly atmosphere) into billions of small volumes, each of which has a density, temp, humidity, radiative flux, albedo etc. and then isn't a climate simulation the process of combining the behavior of these billions of volumes to simulate large scale phenomena?

We use the large - eddy simulation code PyCLES to simulate the dynamics of clouds and boundary layers, to elucidate their response to climate changes, and to develop closure schemes for representing their smaller - scale dynamics in larger - scale climate and weather forecasting models.

-- and * MORE * global - scale climate - modeling and dynamic - simulation research?

In the first study, the research team from PNNL and Los Alamos National Laboratory used idealized global model simulations of the aquaplanet with Model for Prediction Across Scales - Atmosphere (MPAS - A) and Weather Research and Forecasting Model (WRF) to run at low, high and variable resolutmodel simulations of the aquaplanet with Model for Prediction Across Scales - Atmosphere (MPAS - A) and Weather Research and Forecasting Model (WRF) to run at low, high and variable resolutModel for Prediction Across Scales - Atmosphere (MPAS - A) and Weather Research and Forecasting Model (WRF) to run at low, high and variable resolutModel (WRF) to run at low, high and variable resolutions.

Because the model parameterizations are not scale aware, increased precipitation produces zonally asymmetric climate circulation patterns that characterize the «errors» in the model simulations.

Since the focus is on Late Holocene time scale, the synthetic sea level fields will be created using a millennial simulation with the Earth System model MPI ‐ ESM ‐ P AOGCM.

Roger could reply again by stating that models that don't show skill in projecting changing statistics can not be used for this reasoning by simulation, but I remain to disgree with him: the skill of climate models to project changing climate statistics at decadal time scales can formally not be established due to large role of natural variability, but is also not always required for generating useful information that enters the imagination process.