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Objects and Methods : Level Power Reservoir : User Methods : Hydrologic Inflow
Hydrologic Inflow
The Hydrologic Inflow category allows RiverWare to accommodate inflows to a Reservoir that are not part of the main channel and/or are not gauged. The user methods in this category may be used to initialize the Hydrologic Inflow slot if it is required by the user. If the Hydrologic Inflow slot has been initialized, it is figured into the mass balance when the object dispatches.
* None
None is the default method for the Hydrologic Inflow category. No calculations are performed by this method.
If this method is selected, the Hydrologic Inflow slot is not initialized so it is no included in the mass balance.
There are no slots specific to this method.
* Solve Hydrologic Inflow
The Solve Hydrologic Inflow method should be used when the user wishes RiverWare to calculate Hydrologic Inflow. Hydrologic Inflow will be solved for when the Reservoir dispatches. RiverWare will not overwrite any user input values for Hydrologic Inflow. Hydrologic Inflow is only solved for when a value is not input.
Slots Specific to This Method
 Hydrologic Inflow
Type: Series
Units: FLOW
Description: flow into the reservoir that is not gauged and/or does not enter through the main channel.
Information:  
I/O: Optional; calculated if not input.
 Hydrologic Inflow Adjust
Type: Series
Units: FLOW
Description: optional adjustment that can be made to the calculated Hydrologic Inflow
Information:  
I/O: Optional; set to zero if not input by the user
 Hydrologic Inflow Net
Type: Series
Units: FLOW
Description: sum of Hydrologic Inflow and Hydrologic Inflow Adjust
Information:  
I/O: Output only
Method Details 
The following steps are performed in the Solve Hydrologic Inflow method.
1. If Hydrologic Inflow Adjust is not set by the user, RiverWare sets it equal to zero.
2. If Hydrologic Inflow is not set by the user, it is calculated in the dispatch method. See Dispatch Methods for detailed explanation.
3. Hydrologic Inflow Net is calculated as the sum of Hydrologic Inflow and Hydrologic Inflow Adjust.
* Input Hydrologic Inflow
The Input Hydrologic Inflow method should be used when the user wishes either to input the values of Hydrologic Inflow or have the values default to zero. RiverWare will not overwrite any user input values.
Slots Specific to This Method
 Hydrologic Inflow
Type: Series
Units: FLOW
Description: flow into the reservoir that is not gauged and/or does not enter through the main channel.
Information:  
I/O: Optional; defaults to zero if not input.
 Hydrologic Inflow Adjust
Type: Series
Units: FLOW
Description: optional adjustment that can be made to the calculated Hydrologic Inflow
Information:  
I/O: Optional; set to zero if not input by the user.
 Hydrologic Inflow Net
Type: Series
Units: FLOW
Description: sum of hydrologic Inflow and Hydrologic Inflow Adjust
Information:  
I/O: Output only
Method Details 
The algorithm used for this method is very simple.
1. If Hydrologic Inflow is not input by the user, it is set equal to zero.
2. Hydrologic Inflow Net is calculated as the sum of Hydrologic Inflow and Hydrologic Inflow Adjust.
* Hydrologic Inflow and Loss
The Hydrologic Inflow and Loss method should be used when the user wishes to have negative inflows taken into account as unidentified losses.
Slots Specific to This Method
 Hydrologic Inflow
Type: Series
Units: FLOW
Description: flow into the reservoir that is not gauged and/or does not enter through the main channel.
Information:  
I/O: Optional; defaults to zero if not input.
 Hydrologic Inflow Adjust
Type: Series
Units: FLOW
Description: optional adjustment that can be made to the calculated Hydrologic Inflow
Information:  
I/O: Optional; the Hydrologic Inflow Adjust may either be input by the user or set to zero if it is not input. If the Inflow is negative, it is added to Hydrologic Inflow Adjust.
 Hydrologic Inflow Net
Type: Series
Units: FLOW
Description: sum of Hydrologic Inflow and Hydrologic Inflow Adjust
Information:  
I/O: Output only
Method Details 
This method calculates Hydrologic Inflow using the following process.
1. If the user selects this method and negative inflows occur, this method is called from the dispatch method.
2. The Inflow, which is a negative number in this case, is added to the Hydrologic Inflow Adjust.
3. Inflow is set equal to zero.
Otherwise, this method behaves like the Input Hydrologic Inflow method.
* Forecast Hydrologic Inflow
This method is used to forecast the hydrologic inflow based on known inflow values. When this method is selected, the Generate Forecast Hydrology category becomes visible. Within this category, methods are available to generate the hydrologic inflow forecast.
Revised: 07/03/2024