scholarly journals Deterministic chaos, fractals, and quantumlike mechanics in atmospheric flows

1990 ◽  
Vol 68 (9) ◽  
pp. 831-841 ◽  
Author(s):  
A. Mary Selvam

The complex spatiotemporal patterns of atmospheric flows that result from the cooperative existence of fluctuations ranging in size from millimetres to thousands of kilometres are found to exhibit long-range spatial and temporal correlations. These correlations are manifested as the self-similar fractal geometry of the global cloud cover pattern and the inverse power-law form for the atmospheric eddy energy spectrum. Such long-range spatiotemporal correlations are ubiquitous in extended natural dynamical systems and are signatures of deterministic chaos or self-organized criticality. In this paper, a cell dynamical system model for atmospheric flows is developed by consideration of microscopic domain eddy dynamical processes. This nondeterministic model enables formulation of a simple closed set of governing equations for the prediction and description of observed atmospheric flow structure characteristics as follows. The strange-attractor design of the field of deterministic chaos in atmospheric flows consists of a nested continuum of logarithmic spiral circulations that trace out the quasi-periodic Penrose tiling pattern, identified as the quasi-crystalline structure in condensed matter physics. The atmospheric eddy energy structure follows laws similar to quantum mechanical laws. The apparent waveparticle duality that characterizes quantum mechanical laws is attributed to the bimodal phenomenological form of energy display in the bidirectional energy flow that is intrinsic to eddy circulations, e.g., formation of clouds in updrafts and dissipation of clouds in downdrafts that result in the observed discrete cellular geometry of cloud structure.

2001 ◽  
Vol 8 (1/2) ◽  
pp. 55-67 ◽  
Author(s):  
R. Robert ◽  
C. Rosier

Abstract. In the light of recent advances in 2D turbulence, we investigate the long range predictability problem of atmospheric flows. Using 2D Euler equations, we show that the full nonlinearity acting on a large number of degrees of freedom can, paradoxically, improve the predictability of the large scale motion, giving a picture opposite to the one largely popularized by Lorenz: a small local perturbation of the atmosphere will progressively gain larger and larger scales by nonlinear interaction and will finally cause large scale change in the atmospheric flow.


2015 ◽  
Vol 6 ◽  
Author(s):  
Maria Botcharova ◽  
Luc Berthouze ◽  
Matthew J. Brookes ◽  
Gareth R. Barnes ◽  
Simon F. Farmer

PLoS ONE ◽  
2018 ◽  
Vol 13 (5) ◽  
pp. e0196907 ◽  
Author(s):  
Mona Irrmischer ◽  
C. Natalie van der Wal ◽  
Huibert D. Mansvelder ◽  
Klaus Linkenkaer-Hansen

2017 ◽  
Vol 48 (8) ◽  
pp. 2674-2683 ◽  
Author(s):  
Mona Irrmischer ◽  
Simon-Shlomo Poil ◽  
Huibert D. Mansvelder ◽  
Francesca Sangiuliano Intra ◽  
Klaus Linkenkaer-Hansen

2020 ◽  
Vol 225 (3) ◽  
pp. 1169-1183 ◽  
Author(s):  
Mostafa Jannesari ◽  
Alireza Saeedi ◽  
Marzieh Zare ◽  
Silvia Ortiz-Mantilla ◽  
Dietmar Plenz ◽  
...  

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