Universal Spectrum for Natural Variability of Climate: Implications for Climate Change
| dc.creator | Pethkar, J. S. | |
| dc.creator | Selvam, A. M. | |
| dc.date | 2001-05-31 | |
| dc.date.accessioned | 2026-07-07T05:45:53Z | |
| dc.date.available | 2026-07-07T05:45:53Z | |
| dc.description | The apparantly irregular (unpredictable) space-time fluctuations in atmospheric flows ranging from climate (thousands of kilometers - years) to turbulence (millimeters - seconds) exhibit the universal symmetry of self-similarity. Self-similarity or scale invariance implies long-range spatiotemporal correlations and is manifested in atmospheric flows as the fractal geometry to spatial pattern concomitant with inverse power-law form for power spectra of temporal fluctuations. Long-range spatiotemporal correlations are ubiquitous to dynamical systems in nature and are identified as signatures of self-organized criticality. Standard meteorological theory cannot explain satisfactorily the observed self-organized criticality. Numerical models for simulation and prediction of atmospheric flows are subject to deterministic chaos and give unrealistic solutions. Deterministic chaos is a direct consequence of round-off error growth in iterative computations. Round-off error of finite precision computations doubles on an average at each step of iterative computations. Round-off error will propagate to the mainstream computation and give unrealistic solutions in numerical weather prediction (NWP) and climate models which incorporate thousands of iterative computations in long-term numerical integration schemes. A recently developed non-deterministic cell dynamical system model for atmospheric flows predicts the observed self-organized criticality as intrinsic to quantumlike mechanics governing flow dynamics. | |
| dc.description | 5 pages, Proc. Amer. Meteorol. Soc. 10th Conf. Applied Climatology, Fall 1997, Western USA | |
| dc.identifier | https://arxiv.org/abs/physics/0105109 | |
| dc.identifier | http://arxiv.org/abs/physics/0105109 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/84154 | |
| dc.subject | General Physics | |
| dc.title | Universal Spectrum for Natural Variability of Climate: Implications for Climate Change | |
| dc.type | text |