4. Diagnostic Output¶
4.1. LETKF Solver Diagnostics¶
The core LETKF solver will output several fields of diagnostic information at the end of the program if enabled in the yaml configuration file. See solver.save_diag and solver.diag_file configuration sections.
These help get a sense of how many observations are being used by each grid-point.
- col_maxhz - the maximum horizontal search radius for the grid column
- col_obscount - the number of observations, for each grid column, that were found within the given col_maxhz radius
- lg_obscount - the subset of observations that were allowed to be used for each localization group
- lg_obsloc - the sum of the localization values for observations used by each localization group. A single observation can have a localization value between 0.0 and 1.0. This gives a general sense of the amount of impact observations have.