climpred.metrics._std_ratio

climpred.metrics._std_ratio(forecast, verif, dim=None, **metric_kwargs)[source]

Ratio of standard deviations of the forecast over the verification data.

\text{std ratio} = \frac{\sigma_f}{\sigma_o},

where \sigma_{f} and \sigma_{o} are the standard deviations of the forecast and the verification data over the experimental period, respectively.

Parameters

  • forecast (xarray object) – Forecast.

  • verif (xarray object) – Verification data.

  • dim (str) – Dimension(s) to perform metric over.

  • metric_kwargs (dict) – see xarray.std

Details:

minimum

0.0

maximum

∞

perfect

1.0

orientation

N/A
Reference: