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Variability changes mean response in non-linear contexts

Variability changes mean response in non-linear contexts. Response . Factor . Factor . Effect depends on curvature: Uptake ↓ , and release ↑ ?. Forcing and response function make the extreme. Forcing x. Transfer function f. Response variable y.

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Variability changes mean response in non-linear contexts

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  1. Variability changes mean response in non-linear contexts Response  Factor  Factor  Effect depends on curvature: Uptake ↓ , and release ↑ ?

  2. Forcing and response function make the extreme Forcing x Transferfunction f Response variable y Pos. skewed  ‚slow-out rapid-in‘? Neg skewed  ‚slow-in fast-out‘

  3. Impact of more extreme precip depends on ‚normal‘ state Knapp et al. 2008, BioScience

  4. Observational evidence by fusing flux data and remote sensing fAPAR mediterraneanneg skewed Pos skewed Neg skewed (red and yellow) ‘ new FAPAR metric as GPP proxy, cf. Jung et al. 2008, GCB

  5. Skewness of 100-yr LPJ NEP May Pos skewed Neg skewed Jul Shift from neg skewness in May to pos skewness in Jul  seasonality matters !

  6. Other slides

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