View Full Version : Application of different NAPI values to accomodate different soils

Alan Ayris
October 28, 2014, 03:24 AM
While using ICM, I needed to overwrite several NAPI values within my rainfall profile regions to pick up a mixture of soil types. Therefore we have tried to pick up the additional NAPI's by attaching them to the runoff surfaces tab within the RED file via an appropriate surface index. My issue was that the simulation was not picking up NAPIs assigned to the run-off surfaces tab but was taking the local NAPI assigned to the rainfall profile itself.
I have been using this method for years, albeit in CS not ICM with no problems.
Innovyze have told me that it is not possible to mix initial conditions specified in the CRD (run-off surface tab) with those specified in the RED files, it has to be one or the other. They also say this is the case for CS as well as ICM
I find this hard to believe. Has anyone had a similar problem as the workaraound on large models with lots of RGs and several verification events is likely to be a pain!