Quantifying the predictability limits of chaotic systems and their forecast models has attracted much interest among scientists. The attractor radius (AR) and the global attractor radius (GAR), as intrinsic properties of a chaotic system, were introduced in the most recent work (Li et al. 2018). It has been shown that both the AR and GAR provide more accurate, objective metrics to access the global and local predictability limits of forecast models compared with the traditional error saturation or the asymptotic value. In this work, we consider the AR and GAR of fractional Lorenz systems, introduced in Grigorenko and Grigorenko [Phys. Rev. Lett. 91, 034101 (2003)] using the Caputo fractional derivatives and their application to the quantification of the predictability limits. A striking finding is that a fractional Lorenz system with smaller , which is a sum of the orders of all involved equal derivatives, has smaller attractor radius and shorter predictability limits. In addition, we present a new numerical algorithm for the fractional Lorenz system, which is the generalized version of the standard fourth-order Runge–Kutta scheme.
Skip Nav Destination
Article navigation
January 2023
Research Article|
January 03 2023
Attractor radius for fractional Lorenz systems and their application to the quantification of predictability limits
Yejuan Wang
;
Yejuan Wang
a)
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Writing – original draft, Writing – review & editing)
1
School of Mathematics and Statistics, Gansu Key Laboratory of Applied Mathematics and Complex Systems, Lanzhou University
, Lanzhou 730000, People’s Republic of China
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
Zhiqiang Wei
;
Zhiqiang Wei
(Conceptualization, Data curation, Formal analysis, Methodology, Writing – original draft, Writing – review & editing)
1
School of Mathematics and Statistics, Gansu Key Laboratory of Applied Mathematics and Complex Systems, Lanzhou University
, Lanzhou 730000, People’s Republic of China
Search for other works by this author on:
Guolin Feng
Guolin Feng
(Conceptualization, Data curation, Formal analysis, Methodology, Writing – original draft, Writing – review & editing)
2
Laboratory for Climate Studies, China Meteorological Administration, National Climate Center
, Beijing 100081, People’s Republic of China
3
School of Physical Science and Technology, Yangzhou University
, Yangzhou 225002, People’s Republic of China
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]
Chaos 33, 013105 (2023)
Article history
Received:
July 24 2022
Accepted:
December 06 2022
Citation
Yejuan Wang, Zhiqiang Wei, Guolin Feng; Attractor radius for fractional Lorenz systems and their application to the quantification of predictability limits. Chaos 1 January 2023; 33 (1): 013105. https://doi.org/10.1063/5.0113709
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Response to music on the nonlinear dynamics of human fetal heart rate fluctuations: A recurrence plot analysis
José Javier Reyes-Lagos, Hugo Mendieta-Zerón, et al.
Rate-induced biosphere collapse in the Daisyworld model
Constantin W. Arnscheidt, Hassan Alkhayuon
Selecting embedding delays: An overview of embedding techniques and a new method using persistent homology
Eugene Tan, Shannon Algar, et al.
Related Content
Direct statistical simulation of the Lorenz63 system
Chaos (April 2022)
Robust extremes in chaotic deterministic systems
Chaos (December 2009)
Analysis of chaotic dynamical systems with autoencoders
Chaos (October 2021)
Pinning control of fractional-order weighted complex networks
Chaos (February 2009)