Regular and chaotic regimes in Saltzman model of glacial climate dynamics under the influence of additive and parametric noise / Alexandrov Dmitry V.,Bashkirtseva Irina A.,Fedotov Sergei P.,Ryashko Lev B. // EUROPEAN PHYSICAL JOURNAL B. - 2014. - V. 87, l. 10.

ISSN/EISSN:

1434-6028 / 1434-6036

Type:

Article

Abstract:

It is well-known that the climate system, due to its nonlinearity, can be sensitive to stochastic forcing. New types of dynamical regimes caused by the noise-induced transitions are revealed on the basis of the classical climate model previously developed by Saltzman with co-authors and Nicolis. A complete parametric classification of dynamical regimes of this deterministic model is carried out. On the basis of this analysis, the influence of additive and parametric noises is studied. For weak noise, the climate system is localized nearby deterministic attractors. A mixture of the small and large amplitude oscillations caused by noise-induced transitions between equilibria and cycle attraction basins arise with increasing the noise intensity. The portion of large amplitude oscillations is estimated too. The parametric noise introduced in two system parameters demonstrates quite different system dynamics. Namely, the noise introduced in one system parameter increases its dispersion whereas in the other one leads to the stabilization of the climatic system near its unstable equilibrium with transitions from order to chaos.

Author keywords:

FEEDBACK-SYSTEM; SEA-ICE; STOCHASTIC RESONANCE; OCEAN TEMPERATURE; FLUCTUATIONS; OSCILLATIONS; VOLUME; TIME; CO2

DOI:

10.1140/epjb/e2014-50208-0

Web of Science ID:

ISI:000343053900002

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT 7
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Article-Number	227
EISSN	1434-6036
Keywords-Plus	FEEDBACK-SYSTEM; SEA-ICE; STOCHASTIC RESONANCE; OCEAN TEMPERATURE; FLUCTUATIONS; OSCILLATIONS; VOLUME; TIME; CO2
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	lev.ryashko@urfu.ru
ResearcherID-Numbers	Alexandrov, Dmitri/D-2516-2016
ORCID-Numbers	Alexandrov, Dmitri/0000-0002-6628-745X
Funding-Acknowledgement	Ministry of Education and Science of the Russian Federation {[}N 315]
Funding-Text	This work was supported by the Ministry of Education and Science of the Russian Federation under the project N 315.
Number-of-Cited-References	31
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	7
Journal-ISO	Eur. Phys. J. B
Doc-Delivery-Number	AQ8DP