‒m variance

The variance plot shows the variance among members for different time scales (day, week, month and year).

wxgen verif truth.nc unweighted.nc weighted.nc -v 0 -m variance -xlog

To compute variance, the climatology is first removed from the signal. After this, the variance is computed for all days collectively.

The -xlog option make the x-axis logarithmic, which makes it easier to view the full range of timescales. -ylog option is also supported.