setup_irs_coverage_func.Rd
If dynamic forcing has not already been set up, then turn on dynamic forcing and set all the
setup_irs_coverage_func( pars, opts = list(), mean = 0, F_season = F_flat, F_trend = F_flat )
an **`xds`** object
a list of options to override defaults
the mean irs_coverage
the seasonal signal in irs coverage
a temporal trend in irs coverage