Time Series Nodes

Time series nodes are used for generating a time series plot and the time series data at that node. Time-series data are helpful for calibrating a model and are required for optimization.

In GeoHECRAS, the user can create time series nodes on the Map View using the Assign Time Series Nodes and Draw Time Series Nodes commands. Both commands have similar functionality but somewhat distinct workflows.

Assigning Time Series Nodes

The Assign Time Series Nodes command allows the user to manually assign individual node(s) as a time series node. To use this command, a node that can be selected for the purpose of assigning the time series node must already exist on the Map View.

Follow the steps below to assign the time series nodes:

1. From the Results ribbon menu, click the Time Series Plots dropdown menu and select the Assign Time Series Nodes command.
   
2. The Assign Time Series Nodes dialog box will be displayed.
   
3. Click the [Pick] button adjacent to the Time series nodes entry.
4. The Assign Time Series Nodes dialog box will temporarily disappear, and a prompt will be displayed on the status bar instructing the user to select the nodes.
5. Click on the nodes in the Map View to select them. When finished, press the [Enter] key or right-click and select Done from the displayed context menu.
6. The Assign Time Series Nodes dialog box will be redisplayed, and the number of selected nodes will be shown in the Time series nodes entry.
   Note that if a node has been preselected on the Map View before running this command, the number of selected nodes will be displayed in the Time series nodes entry.
7. In the Time Series Node Specifications section, define the prefix for the names of the time series nodes in the Auto-name time series node, prefix entry field.
   Note that the Time series node name option is only available when a single node is selected. The user can then define the name of the time series node in the Time series node name entry field. Otherwise, the software auto-names the time series nodes using the defined prefix, for example, TS-##, where ## represents the time series nodes count (i.e., 01, 02, and so on) and TS represents the prefix.
8. Click the [Apply] button, and the software will assign the selected nodes as time series nodes.

Drawing Time Series Nodes

The Draw Time Series Nodes command allows the user to manually draw time series nodes on the Map View.

Follow the steps below to draw the time series nodes:

1. From the Results ribbon menu, click the Time Series Plots dropdown menu and select the Draw Time Series Nodes command.
   
2. The Draw Time Series Nodes dialog box will be displayed.
   
3. Click the [Draw] button adjacent to the Time series node entry.
4. The Draw Time Series Nodes dialog box will temporarily disappear, and a prompt will be displayed on the status bar instructing the user to draw the nodes on the Map View.
5. Draw nodes on the Map View. Note that the user can draw only one node at a time for defining the time series node.
6. When finished, press the [Enter] key or right-click and select Done from the displayed context menu.
7. The Draw Time Series Nodes dialog box will be redisplayed and the status of the Time series node read-only field will be changed from Not Drawn to Drawn.
   
8. The software automatically names the drawn nodes in the Time Series Node Specifications section. Note that the user can also change the name to whatever is desired in the Time series node name entry field.
9. Click the [Apply] button and the software will create a time series node on the Map View.

Displaying Time Series Plot

The software allows the user to request various types of output such as water surface elevation and terrain time series, velocity time series, and flow depth time series along the time series nodes.

The Time Series Plot command is used to view computed results for user-defined time series nodes.

From the Results ribbon menu, click the Time Series Plots dropdown menu and then select the Time Series Plot command.

The Time Series Plot dialog box will be displayed. Alternatively, the user can double-click on the time series node in the Map View to display this dialog box and view output results underneath that time series node.

Note that while viewing the water surface elevation profile, the terrain time series is included in the plot for reference.

The Scenario dropdown combo box allows the user to view output results from different scenarios. To learn more about working with multiple scenarios, refer to this article in our knowledge base.

The Time Series Nodes dropdown combo box allows the user to select the time series node to display output results underneath it. The plot can display output results for multiple time series nodes at the same time.

The user can request various types of output (Velocity, Flood Depth, Water Surface Elevation, etc.) along the selected time series node(s) from the Plot type dropdown combo box.

The GeoHECRAS software also allows the user to create professional printouts of time series node plots, save them as image files as well as export them to PDF file. To print or export the results of a time series node plot to a different format, right-click anywhere on the plot and select the Export to PDF, Save as Image, or Print option.

Deleting Time Series Nodes

The Delete Time Series Nodes command allows the user to selectively delete the user-defined time series nodes from the model.

Follow the steps below to delete the time series nodes:

1. From the Results ribbon menu, click the Time Series Plots dropdown menu and select the Delete Time Series Nodes command.
   
2. The Delete Time Series Nodes dialog box will be displayed.
   
3. In the Available Time Series Nodes grid, check the checkboxes corresponding to the time series nodes you want to delete. Alternatively, click the [Pick] button to select the time series nodes from the Map View.
   Note: To select all the time series nodes at once, click the [Select All] button.
4. The number of selected time series nodes will be displayed in the Total selected read-only field.
   Note: To cancel the previous selection and redo the entire process, click the [Clear All] button.
5. After selecting the time series nodes, click the [OK] button, and the software will delete all the selected time series nodes.

Zooming Time Series Nodes

The Zoom to Time Series Node command allows the user to selectively zoom the user-defined time series nodes on the Map View.

Follow the steps below to zoom the time series nodes:

1. From the Results ribbon menu, click the Time Series Plots dropdown menu and select the Zoom to Time Series Node command.
   
2. The Zoom to Time Series Node dialog box will be displayed.
   
3. In the Select Time Series Nodes section, select the time series node you want to zoom.
4. Click the [Ok] button.
   
5. The software will then zoom to the selected time series node and become highlighted on the Map View.