Till now I could not find a solution for accessing all outflow results (from all parameter realisations) in the dss file generated from an Uncertainty Analysis in HEC-HMS. Only the characteristic results (mean, mean+ or - std. dev., etc) are available from the dss file. The data for all realisations appear in the HEC-DSSVue as available, but in fact they are not.
This persistence of this problem means that what is explained as a possible approach in section 6.1.1 of the guidance document (Approach 1) will not be possible. Please use the alternative approach (Approach 2 - explained under section 6.1.2) for the parameter sensitivity. Many of you have already realised this, I think, and have started developing the demo application with Approach 2.
Apologies for this inconvenience.
All the best,