Stochastic variability and noise-induced generation of chaos in a climate feedback system including the carbon dioxide dynamics
Department of Mathematical Physics, Ural Federal University - Ekaterinburg, 620000, Russian Federation
Received: 8 June 2016
Accepted: 12 September 2016
In this work, a non-linear dynamics of a simple three-dimensional climate model in the presence of stochastic forcing is studied. We demonstrate that a dynamic scenario of mixed-mode stochastic oscillations of the climate system near its equilibrium can be formed. As this takes place, a growth of noise intensity increases the frequency of interspike intervals responsible for the abrupt climate changes. In addition, a certain enhancement of stochastic forcing abruptly increases the atmospheric carbon dioxide and decreases the Earth's ice mass. A transition from order to chaos occurring at a critical noise is shown.
PACS: 05.45.-a – Nonlinear dynamics and chaos / 05.45.Pq – Numerical simulations of chaotic systems / 92.60.Ry – Climatology, climate change and variability
© EPLA, 2016