A. Lahellec et al 2008 EPL 81 60001 doi:10.1209/0295-5075/81/60001
A. Lahellec1, S. Hallegatte2,3, J.-Y. Grandpeix1, P. Dumas4 and S. Blanco5
Show affiliationsWe propose a method to extend the concept of feedback gain to nonlinear models. The method is designed to dynamically characterise a feedback mechanism along the system natural trajectory. The numerical efficiency of the method is proved using the Lorenz (1963) classical model. Finally, a simple climate model of water vapour feedback shows how nonlinearity impacts feedback intensity along the seasonal cycle.
Issue 6 (March 2008)
Received 29 August 2007, accepted for publication 18 January 2008
Published 20 February 2008
A. Lahellec et al 2008 EPL 81 60001
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