Summary:

## Seasonal Inundation

The article discusses a simple scaling factor used to mimic the impact of seasonal inundation on methane (CH4) production. This factor is represented by the equation:

S = (β(f-f_bar) + f_bar) / f, where S ≤ 1

Here, f is the instantaneous inundated fraction, f_bar is the annual average inundated fraction (evaluated for the previous calendar year) weighted by heterotrophic respiration, and β is the anoxia factor that relates the fully anoxic decomposition rate to the fully oxygen-unlimited decomposition rate.

This simplified expression is used to account for the effects of seasonal inundation on CH4 production, as discussed in the referenced appendix.