HEC-ResSim

Release Notes

The release notes for HEC-ResSim 4.1.0 can be found here.

Model Linking

• Improvements made to the "Get Linkages From" Option in the Model Linking Editor for HEC-ResSim. The "Use Existing ResSim Linkages" will overwrite the current linkages with the pathnames contained in the HEC-ResSim - Default variant. This is helpful if the user makes an update in the base HEC-ResSim alternative and needs to update to new DSS pathnames. 

Variants

• How variants are handled within HEC-RTS has been improved in HEC-RTS 3.6. Please see the https://www.hec.usace.army.mil/confluence/cwmsdocs/ctg/hec-ressim/variants-in-rts tutorial for more information. 

New Features

• New OSI Table Fill Options
• New On-The-Fly (OTF) Fill Editor
• New Observed Data addition in the OSI Variable Editor
• In situations where multiple HEC-ResSim alternatives are present in a Forecast, the active HEC-RTS Forecast Run (checked box in the Forecast Window) now is synced with the Active HEC-ResSim Alternative. 
• New check for coincidental zone definition.  ResSim will not run if zones cross or overlap and will give an error that was not seen in 3.51.  This can be addressed by identifying a "Zone Sort" Order for zones that are functions of something other than date.  Once ResSim has a zone sort order, it will manage conflicts without further ado.  See:  Reservoir Operation Zones.

Known Issues

The status of issues identified in the CWMS 3.5 release can be found here. 

The known issues as of the CWMS 3.6 release can be found here.

Workarounds

Key workarounds to highlight include: