Sentences with phrase «dynamical parameters»

Through the quantitative analysis of individual plant roots and from root length measurements over time, an estimation of dynamical parameters such as relative cell elongation rates, meristematic activity rate, and time spent in the EZ was obtained (see description in Appendix Text: Section S1.A and formulae in Table EV2 both for Approach 1 and Approach 2).

Results, which were published in the June 1 issue of PLoS Computational Biology, have implications for how evolutionary pressures can improve the function of receptor systems by selectively optimizing a few fundamental dynamical parameters.

Classical Laplacian determinism had assumed that an «operational» truncation (or first - order approximation) of initial values of dynamical parameters were a mathematically rigorous approach for accurately predicting the future (or past) state of physical events.

This relates to the sensitive dependence of non-linear systems to the initial values of its dynamical parameters (often referred as the «butterfly effect,» a phrase coined by the meteorologist E.N. Lorenz).7 In such a system, even the smallest change (or uncertainty) of initial values of a non-linear or dynamically coupled system, show long - term divergence of its phase - map trajectories, leading to the formation of a basin of so - called «strange attractors.»

The AWP - induced changes related to tropical cyclones that we emphasize here include a dynamical parameter of tropospheric vertical wind shear and a thermodynamical parameter of convective instability.

Besides I strongly oppose (like R.Pielke and many others) the idea that the «global time average of the surface temperature» has any physical meaning or is a valid metrics to measure the «climate» and I can't see the beginning of a valid reason why it should correlate to any relevant dynamical parameter.

On the other hand the TCR which is a differential (as opposed to ECS which is an integral) is a real dynamical parameter and is actually a function.

Not exact matches

His analysis of the idea of molecular structure from «first principles» shows that if one starts from a description of the molecule as an isolated, dynamical system consisting of the number of electrons and nuclei implied by the stoichiometric formula that interact via electromagnetic forces, one can not even calculate the most important parameters in chemistry, namely, those that describe the molecular structure.8

By comparing dynamical simulations with non-interacting Keplerian orbits, we concluded that neglecting interactions between planets may lead to systematic errors that could hamper the precision in the orbital parameters when the dataset spans several years.

Subtle dynamical motions measured by Earth - based radar, the observed parameters of its gravity field, and observations of the magnetic field indicate that Mercury's core is at least partially liquid with an active core dynamo.

There may be reason to strongly suspect that in any sufficiently complicated dynamical system model (such as climate) with stochastic parameters (e.g., exactly when and where a lightning strike starts a major wildfire or a major submarine earthquake perturbs ocean circulation in a region or a major volcanic eruption introduces stratospheric aerosols), it is almost certain that any given run of the model will have periods of significant deviation from the mean of multiple runs.

Not only is the climate of the Lorenz model easy to understand, it is also simple to predict how it will respond to a variety of «external forcings», in the form of either a parameter perturbation or direct forcing term in the dynamical equations.

How exactly is the dynamical complexity more informative than the history of extremes, without actual parameter values and tested predictions?

We hypothesise that part of the reason for this may be because these SMEs were originally designed to investigate climate sensitivity, and so the focus was not on varying parameters which affect dynamical processes.

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 general, the histogram of climate variables only related to dynamical process (SLP, SW clear - sky radiation) tend to be U-shape in SMEs, possibly because model parameters related to dynamical processes are not generally perturbed in the SMEs.

As discussed in the analysis of rank histogram, the inability for the SMEs to have sufficient diversity may be related to the fact that parameters in dynamical processes were not perturbed in SMEs.