Database bins (‒b)

This option is used to select the time of the year where we look for segment matches. Specifically, it sets how many days each bin consists of. At the moment, by default it is set to 10 days. This means that the 365 days in a year are split into 37 bins. If you want to find a match for a segment ending on Jan 11, it will look in the second bin (i.e. of dates between Jan 11 - Jan 20).

Higher values of [-b] give larger bins. This allows the trajectories to drift away from what is climatologically possible for a day. Too narrow bins will reduce the chance to find a good match.

Example

wxgen sim -db db.nc -n 21 -t 365 -w 1 -v 0 -o bin10.nc
wxgen sim -db db.nc -n 21 -t 365 -w 1 -v 0 -b 20 -o bin20.nc