Joshua, why can't you grasp the notion
of nonlinear systems?
The S from the IPCC comes from a definition that assumes we know the future of the full behavior
of the nonlinear system and can let the 2xCO2 effect run to completion (or absent that ideal value, can approximate it using models and possibly also using various simplified assumptions and calculations to speed how long it takes to calculate the value).
In other words, there's no indication
of a nonlinear system exhibiting jump resonance as an intrinsic response characteristic.
Not exact matches
And his book suggests that scientists should address the obvious metaphysical implications
of twentieth - century physics: e.g., Einstein and quantum mechanics and the more recent developments in the field
of chaos theory and
nonlinear systems.
Menczer's work, which is also supported by the military's Defense Advanced Research Projects Agency and by the private James S. McDonnell Foundation, is part
of a growing field that examines what are called complex,
nonlinear feedback
systems.
«It's also possible that the broader discussion
of nonlinear oscillations could be helpful to scientists examining other biological
systems that exhibit comparable dynamic responses.»
This relation
of the Schrödinger equation to classical waves is already revealed in the way that a variant called the
nonlinear Schrödinger equation is commonly used to describe other classical wave
systems — for example in optics and even in ocean waves, where it provides a mathematical picture
of unusually large and robust «rogue waves.»
The new
system now demonstrated will soon allow further experiments on phase transitions in classical
systems and in the quantum universe as well as tests in the field
of nonlinear physics (e.g. solitons) to be performed in a well - controlled comparative
system.
Therefore, the results achieved in this study have shown that
nonlinear effects in graphene nano - mechanical resonators reveal a hybridization effect at high energies that, if controlled, could open up new possibilities to manipulate vibrational states, engineer hybrid states with mechanical modes at completely different frequencies, and to study the collective motion
of highly tunable
systems.
«To predict the effects this type
of deforestation has on the relationship between rain forest and the savanna — and on the local and global climate — it's necessary to understand how the transitional forest evolves in time and reacts to disturbances,» explained Yannick De Decker, associate professor at the Center for
Nonlinear Phenomena and Complex
Systems, as well as the
Nonlinear Physical Chemistry Unit at ULB.
Chaos theory, or
nonlinear dynamics, is a mathematical way
of determining the effects
of small changes on
systems so complex they look random.
Now, a team
of scientists has streamlined the problem by combining ocean wave data with a healthy dose
of nonlinear dynamics
of the wave
system.
They then developed a novel approach to analyze the
nonlinear dynamics
of the
system and predict which wave groups will evolve into extreme rogue waves.
The program encompasses a wide range
of theoretical perspectives, such as symbolic computation, connectionism, ecological,
nonlinear dynamics, and complex
systems, and a variety
of methodologies including both experimental studies and modeling.
Today, scientists around the world, including those at the Potsdam Institute for Climate Impact Research that Schellnhuber founded in 1992, are successfully investigating the
nonlinear dynamics
of the complex climate
system, and religious leaders like Pope Francis - whose green Encyclical Schellnhuber had the honor to present to the world in 2015 - joined in the call for avoiding dangerous climate change.
Taken together, our findings provide strong support for the argument that the
nonlinear saccade kinematics are not due to a passive saturation
of brainstem burst neurons, e.g., as a result
of neural fatigue, but reflect a deliberate design property within the saccadic
system to produce the main - sequence characteristics.
People have a tendency to approach the body [a
nonlinear system] with a linear mentality i.e — If I do X, I'll get Y; If I eat X calories, in Y weeks I'll have Z amounts
of fat loss.
You see, the human body is a
nonlinear system and things like the calories in versus calories out model — a linear
system — at best, give us only a guide
of how things will go.
The neural control
of the cardiovascular
system exhibits the complex
nonlinear behavior.
The economy, and most industries are
nonlinear dynamic
systems, which means there will be cyclical behavior, and that behavior will be more volatile the greater the level
of fixed commitments in the
system that must be satisfied.
As synchronized multi-axis control
systems are
nonlinear, time - variable and easily affected by disturbances, it is difficult to determine reasonable coupling control law and large amount
of on - line calculation just through the existing synchronous control strategies for multi-axis
system.
Nassim Taleb thinks in the same way, including the
nonlinear impact
of systems level interactions.
I believe it was you Gavin who used the conversion
of a time dependent
nonlinear system into a boundary value problem idea.
(3) Now, if we enlarge the
system further to include the deep ocean, we have a
nonlinear system with a component that has response times on the order
of a millennium.
I think we should agree that D - O events, imperfectly understood though they may be, are the result
of some chaotic
nonlinear system which is probably sensitive to initial conditions.
This revolution has brought new understanding
of nonlinear dynamics, complex
systems, ch...
Is there a chunk
of the climate - change - radar - screen (concerned with
nonlinear systems and their interconnections and coupled responses) missing?
[Response: Whether the dependence is linear or
nonlinear is difficult to say, biological
systems being as messy as they are, but the magnitude
of the change is clearly significant, based on laboratory growth experiments.
• Lack
of formal model verification & validation, which is the norm for engineering and regulatory science • Circularity in arguments validating climate models against observations, owing to tuning & prescribed boundary conditions • Concerns about fundamental lack
of predictability in a complex
nonlinear system characterized by spatio - temporal chaos with changing boundary conditions • Concerns about the epistemology
of models
of open, complex
systems
It's the nature
of turbulent,
nonlinear systems.
I'm tired
of scientific illiterates pretending to understand complicated physical
systems and throwing around words like «complexity» and «
nonlinear» as if they were talismans to put the fear
of dragons into us.
«The great revolution
of nonlinear dynamics over recent decades has provided a wealth
of information about the bifurcations that can destabilise a slowly evolving
system like the Earth's climate.
Separating the direct effects
of all this, not to mention the feedbacks (this stuff ISN» T additive, even tho it is convenient to think it is), is something that no one has adequately done, and I suspect that it is an ill posed problem given the
nonlinear chaotic nature
of the climate
system
Climate is a multiply coupled
nonlinear system that shifts every few decades as a result
of an internal and emergent reorganization
of sub-components.
This revolution has brought new understanding
of nonlinear dynamics, complex
systems, chaos theory, catastrophe theory.
Didier Sornette identified extremes in a number
of dynamic
nonlinear systems — «associated with what can be called equivalently a phase transition, a bifurcation, a catastrophe (in the sense
of Rene Thom) or a tipping point» — as dragon - kings.
Progress can be made by investigating
nonlinear processes and subcomponents
of the climatic
system.
Such chaotic behaviour may limit the predictability
of nonlinear dynamical
systems.»
«A dynamical
system such as the climate
system, governed by
nonlinear deterministic equations (see Nonlinearity), may exhibit erratic or chaotic behaviour in the sense that very small changes in the initial state
of the
system in time lead to large and apparently unpredictable changes in its temporal evolution.
``... we should recognise that we are dealing with a coupled
nonlinear chaotic
system, and therefore that the long - term prediction
of future climate states is not possible.»
Ah — the wonders
of nonlinear responses in the planetary
system.
Each component is part
of a complex and
nonlinear mechanism that in concert acts in ways consistent with the behaviour
of a broad class
of deterministically chaotic
systems.
«Synchronization is a fundamental
nonlinear phenomenon and one basic mechanism
of self - organization in complex
systems 14, and synchronization
of nonlinear oscillators to external forcing (see Supplementary Information) is commonly encountered in physics, chemistry, biology, engineering and climatology 13 — 17.
In the context
of a coupled,
nonlinear system — the
system is sensitive to small changes in power in.
The three - body problem is
of course at the center
of Chaos theory and climate research has long acknowledged that the climate is a dynamical
system existing on the edge
of spatio - temperal chaos and that the complexity
of multiple interacting positive and negative feedbacks make it so particularly complex and
nonlinear.
One part
of the difficulty is that the Earth is a highly multivariate and chaotic driven / open
system with complex
nonlinear coupling between all
of its many drivers, and with anything but a regular surface.
If one tried to actually write «the» partial differential equation for the global climate
system, it would be a set
of coupled Navier - Stokes equations with unbelievably nasty
nonlinear coupling terms — if one can actually include the physics
of the water and carbon cycles in the N - S equations at all.
In the paper he said: «However, in the Earth — ocean — atmosphere
system,
nonlinear oscillations and excitation
of the [Chandler Wobble] occur primarily at combinational frequencies
of the Chandler frequency (with periods
of 2.4, 3.6, 4.8, and 6.0 years), rather than at the principal resonant frequency.»
Experience with solution algorithms, data assimilation methods and tools, coupling
of components and processes,
nonlinear and linear solvers, limiters, and / or other numerical issues common with complex codes within earth
system models
of varying complexity
If «[t] he inconvenient truth remains,» according to Philip Stott, that «climate is the most complex, coupled,
nonlinear, chaotic
system known,» then like flipping a coin, It will not matter if we devise a mathematical model to combine the data
of the last 100 flips with a dataset reflecting the 100 flips before that — even if you consider want to consider how many tails you got on the previous 1,000 flips — the odds for the next flip still will be 50 - 50.