DART missing data value
If all the prior and posterior mean values are -888888.0 (which is the DART “missing data” value), those observations were not assimilated.
Some observations have precomputed values and the posterior values for these will always be -888888.0, no matter if the observation was assimilated or not.
If it is not already set, edit the
&filter_nml name list in
num_output_obs_members to be the same as the ensemble size.
This will give you all the forward operator values for all the ensemble members. You can determine if all ensemble members are failing in the same way, or if only a few are problematic.