Objects and Methods
Control Point
The Control Point object models a location on a river where certain flow requirements (maximum and minimums) must be maintained. Oftentimes, the control points are used for flood control operations such that the flood control releases do not cause an exceedence of channel capacity at these points.
General Slots
Inflow
Type: SeriesSlot
Units: FLOW
Description: Flow rate at the entrance of the object
Information:
I/O: Optional; can be input or linked
Links: May be linked to the Outflow of another object.
Outflow
Type: SeriesSlot
Units: FLOW
Description: Flow rate at the exit of the object
Information:
I/O: Output only
Links: May be linked to the Inflow of another object
Forecast Period
Type: TableSlot
Units: NONE
Description: The forecast period is a number of timesteps, including the current simulation timestep, that is used in the algorithms for calculating forecasted hydrology, regulation discharge and flood releases. This can be propagated from a computational subbasin of which the control point is a member.
Information:
I/O: Required input
Links: Not linkable
Upstream Reservoirs
Type: ListSlot
Units: NONE
Description: List of upstream reservoirs that route to this control point during the forecast period.
Information: Routing coefficients must be provided in the Routing Coefficients slot for each reservoir in this list.
I/O: Required input
Links: Not linkable
Routing Coefficients
Type: TableSlot
Units: NONE, NONE
Description: Contains linear routing coefficients for routing flow from each reservoir specified in the Upstream Reservoirs slot.
Information: Each column corresponds to a reservoir specified in the Upstream Reservoirs slot. Each row represents a timestep starting with the current timestep. At each intersection of a row and a column is a decimal number to represent the routing coefficient from that reservoir for that timestep. The coefficients in a column for a reservoir must sum to 1.0 and must not be NaN.
Note: The routing coefficients are not used in the solution of Control Point Outflow. They are strictly used in flood control and other basin wide operations; see “Flood Control”.
I/O: Required input if Upstream Reservoirs are defined
Links: Not linkable
User Methods
User method categories are as follows.
Revised: 11/11/2019