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Nonlinear evolution of the parametric instability:numerical predictions versus observations in the heliosphere
Nonlinear evolution parametric instability numerical predictions versus observations
2009/11/12
Low-frequency turbulence in the solar wind is characterized by a high degree of Alfvénicity close to the Sun. Cross-helicity, which is a measure of Alfvénic correlation, tends to decrease with increas...
A delay differential model of ENSO variability:parametric instability and the distribution of extremes
delay differential model ENSO variability parametric instability distribution of extremes
2009/10/30
We consider a delay differential equation (DDE) model for El-Niño Southern Oscillation (ENSO) variability. The model combines two key mechanisms that participate in ENSO dynamics: delayed negat...