(Model) Variables are the fundamental data objects of the OSI; they are the time series datasets entered into or computed by your model. The variables which the OSI allows you to view and edit are grouped into four categories:
Local Inflows—These variables correspond to the "Known Flow" time series entries you see in the Time-Series tab of the ResSim Alternative Editor ("2024-04-30_23-33-55_.Defining Alternatives v3.5"). These variables were created each time an entry was made in the table on the Local Flow tab of the Junction Editor for the various junctions in the reservoir network. Local Inflows are editable (from the OSI) over the entire simulation time window, from the start of the Lookback Period to the end of the Simulation (or Forecast) Period.
Reservoir Releases—These variables correspond to the Release Override time series for each controllable release element of the reservoir's outlet hierarchy; they can be viewed/edited from the Release tab of the ResSim Overrides editor ("Editing Override Values"). Reservoir Releases are only editable in the Simulation (or Forecast) Period (i.e., the lookback releases are considered "observed" and are not editable).
Elevation Targets—These variables correspond to the Elevation Target Override time series for each reservoir; they can be viewed/edited from the Elevation Target tab of the ResSim Overrides Editor ("Editing Override Values"). Like Reservoir Releases, Elevation Targets are only editable in the Simulation (or Forecast) Period.
Computed Parameters—These variables correspond to the set of computed (output) time series produced by all the elements in your reservoir network. Computed Parameters are not editable from the OSI.