G Boffetta et al 2000 J. Phys. A: Math. Gen. 33 1313 doi:10.1088/0305-4470/33/7/302
G Boffetta
, A Celani
, M Cencini
, G Lacorata§ and A Vulpiani![]()
The problem of unpredictability in a physical system due to the incomplete knowledge of the evolution laws is addressed. Major interest is devoted to the analysis of error amplification in chaotic systems with many characteristic times and scales when the fastest scales are not resolved. The parametrization of the unresolved scales introduces a non-infinitesimal uncertainty (with respect to the true evolution laws) which affects the forecasting ability on the large resolved scales. The evolution of non-infinitesimal errors from the unresolved scales up to the large scales is analysed by means of the finite-size Lyapunov exponent. It is shown that proper parametrization of the unresolved scales allows one to recover the maximal predictability of the system.
Issue 7 (25 February 2000)
Received 30 June 1999
G Boffetta et al 2000 J. Phys. A: Math. Gen. 33 1313
S U Rahman et al 2009 J. Radiol. Prot. 29 499
Iacopo Carusotto and Erich J Mueller 2004 J. Phys. B: At. Mol. Opt. Phys. 37 S115
P R Stoddart et al 2006 Nanotechnology 17 680
L O Becerra et al 2006 Metrologia 43 426
Jean-Claude Nénot 2009 J. Radiol. Prot. 29 301
Hongyi Fan 2002 J. Phys. A: Math. Gen. 35 1007
Amlan K Roy and Shih-I Chu 2002 J. Phys. B: At. Mol. Opt. Phys. 35 2075
K G Dyall 1985 J. Phys. B: At. Mol. Phys. 18 L175
Mark Braverman 2006 Nonlinearity 19 1383