Creating truth scenarios

To create a truth scenario, the -db, -n, -t, and -o flags must be specified:

• -db specifies a database to sample from
• -n specifies how many scenarios to create
• -t specifies how long (in number of days) the scenarios should be
• -o specifies what file to store the scenarios in

Unlike creating simulations, this does not join 10-day segments, but instead takes the day 0 forecast and connects these together. If the database does not contain a day 0 forecast for a specific day, then the day 1 forecast from the previous day is used, and so on.

If multiple scenarios are requested, then scenarios are constructed starting on Jan 1 but for different years. If -n and -t are not specified, the single scenario is made that spans the time range of the database.

wxgen truth -db database.nc -o truth.nc