Scenario Mode

MIKE OPERATIONS Scenario Mode¶

In scenario mode, the user can create ‘what if?’ scenarios, based on a baseline simulation. In order to go from “Data & Maps” to “Scenario mode”, select the Scenario navigation pane.

The Scenario navigation pane will be available when a Model Setup and a Forecast Scenario has been specified on the configuration, and when a time series definition of a feature type supports scenario mode.

Notice that the colors of the entire user interface will change according to the skin selection in General Settings.

When in Scenario mode, a new tab ‘Scenarios’ will appear in the ribbon.

Here, scenarios can be created, renamed, deleted and modified.

Create Scenario¶

Click the ‘New’ button in the ribbon.

Item	Description
Scenario Name Give the scenario a name.
Baseline Simulation Specify the baseline simulation to use as baseline.
Apply Scenario Template(s)Check the templates to apply and click OK in order to create the scenario with baseline input time series changed according to the scenario templates. Each template can be applied using a time offset specified by number of days, hours and minutes. This means that all template actions will have an additional offset added to the offset specified on the action. Refer to Configuration on how to configure scenario templates.

The scenario will be created. The system status window will display the progress.
A notification message will appear in the button of the main window when creation of the job is complete.
Select the New Scenario from the Scenario drop down.

Rename Scenario¶

Scenarios can be renamed after their creation.

Item	Description
Click the ‘Rename’ button in the ribbon so that the Rename scenario dialog appears.
Specify the new name and Click ‘OK’.

Delete Scenario¶

Scenarios can be deleted when they are no longer needed so that they do not take up space in the database.

Item	Description
Select the scenario that needs to be deleted in the scenario drop down.
Click the ‘Delete’ button and a message box will appear.
Click ‘OK’ and MIKE OPERATIONS will start to delete the scenario. The System Status window will show the status of the deletion.
After the scenario has been deleted, a notification message will appear and the System Status window will be updated.

Run Scenario¶

When the input time series of the scenario has been changed, the scenario must be executed to get the output time series updated.

Item	Description
Select the scenario that needs to be executed and click the ‘Run’ button.
If more than one host has been configured in the job manager of MIKE Workbench, the host where the job must run should be specified, selecting the host from the ‘Host Name’ drop down. When checking ‘Approve Simulation’, the simulation will be marked as approved if the simulation run succeeds. If no host or only one host has been configured, this dialog will not appear.
The System Status window will show the status of the scenario execution.
After the scenario has been executed, a notification message will appear and the System Status window will be updated, showing the results of the scenario execution.

After the scenario simulation has been completed, all views will be updated with results from the scenario simulation. The Time Series View and the Chart will contain all results from the baseline simulation and the scenario. Time Series will appear with same colours in the Time Series View as on the chart. The symbol on the Header in the Time Series View is used to identify the Baseline/Scenario simulation. On the chart, the baseline simulation will appear as a thin dashed line, while the scenario is shown with thick lines.

Promote Scenario¶

Input time series of a scenario can be promoted to the forecast scenario so that the time series used as input for the forecast scenario is updated so that they contain the values of the scenario selected.

Input time series will be promoted when clicking the Promote button in the ribbon.

In order to promote input time series, the input time series definitions must be configured to do so.

This is done on the Feature Type configuration.

Promote Scenario of the input time series can have the following values:

No
The input time series cannot be promoted.
Forecast
The forecast period of the input time series is promoted.
Hindcast
The hindcast period of the input time series is promoted.
Simulation
The entire simulation period of the input time series is promoted.

Input time series of the selected time series will be promoted to the time series mapped to related input time series of the forecast scenario.

An alternative time series can be specified in the configuration.

If a “Promote To” time series is specified, the time series mapped to the related input time series of the forecast scenario will not be updated.

Scenario Tabular Data Views¶

In scenario mode, the scenario input time series can be changed from the ‘Tabular Data Views’ group in the Scenarios Ribbon tab menu.

The ‘Tabular Data Views’ group will show a button for all Feature Types containing model input time series that ‘Supports Scenario Mode’ (please refer to the section about time series setup on Feature Types in General Settings).

Clicking a button will display a window with a tabular view.

Two tabular view types are supported:

Feature View - showing time series for only one specific feature selected in the tabular view.

Feature View is used when a Feature Type’s ‘Period Interval Unit’ is NOT set to ‘Custom Period’.

The period length in Feature View is determined by the period length specified in the Feature Types setup.
Custom Periods – Showing the input time series for all the stations of the Feature Type.

Custom periods are used when a Feature Types ‘Period Interval Unit’ is set to ‘Custom Period’.

For custom periods, the periods and their lengths are specified in the Ribbon menu of the View, by clicking the Caption Button of the ‘Table Values’ group.

The periods are specified as a semicolon separated list of time steps in hours, relative to Time of Forecast.

The Time Steps: “-24;0;24;48 is 3 periods: - 24 hours before Time of Forecast to Time of Forecast - Time of Forecast to 24 hours after Time of Forecast - 24 hours after Time of Forecast to 48 hours after Time of Forecast.

Changing Scenario Input Times Series¶

In the ‘Tabular Data Views’, the input time series can be changed so that the new values will be used in the next scenario execution (simulation).

The Scenario Input Time Series is in both ‘Feature View’ and in the ‘Custom Period View’, displayed as columns with the scenario icon.

In ‘Custom Period View’, there is a column for each period. The values can be changed as a factor or as the actual value, determined by the Ribbon Menu of the ‘Tabular View’.

Click ‘Save’ to save the new time series into the database.

In the ‘Feature View’, only one column for each input time series is displayed. The value is always specified as the actual value, not as a factor as supported in the ‘Custom Period View’.

The red line marks the Time of Forecast.

Click the ’Save’ button to save the scenario input time series into the database.

Both tabular views have a context menu with copy, paste and delete functionality.

Cut - cuts the selected cells to the clipboard.
Copy - copies the selected cells to the clipboard.
Paste - are pasting the cells of the clipboard to the selected cell(s).
Delete - resets the values of the selected cells to the values of the baseline simulation.
Reset Parameters - resets all parameters of the features associated model objects.

Changing Scenario Model Object Parameters¶

Scenario Model Object parameters can be changed in scenario mode.

Model Objects that need to be changed in MIKE OPERATIONS must be included in the scenario from MIKE Workbench.

Open the Model Setup in the Scenario Explorer.
Find the model object in question.
Include all parameters to the scenario from the context menu. Note that scenarios created from MIKE OPERATIONS, are prefixed with the time of the simulation run of the baseline scenario.

When the parameter has been included, they will be available in MIKE OPERATIONS.

Select the feature (point, line or polygon) associated with the model object from the ‘Tabular Data View’ and change the Parameters from the ‘Properties View’.

Save the changes using the ‘Save’ ribbon button.

The parameters can be reset using the context menu of the spreadsheet feature in the tabular views.