Flow Surveys

A flow survey contains a rainfall event and corresponding observed data. Flow Surveys are used to help calibrate the model.

Flow survey data can consist of level, observed depth, observed flow, observed velocity, rainfall, and, for InfoWorks networks only, pollutograph events. The flow survey will contain a mixture of event types but must have at least one rainfall event and one other observed event.

These events must be created individually after the flow survey object has been created by right-clicking on the flow survey and selecting New | Item. The type of event can then be chosen. The flow survey will contain a mixture of event types but must have at least one rainfall event and one other observed event.

Event Editors can be displayed for flow survey events in the same way as for other Events.

Create a Flow Survey for an InfoWorks network

  1. In the Explorer Window, right-click on a Model Group.
  2. Select New InfoWorks | Flow survey from the pop-up menu.
  3. Enter a name for the new flow survey and click OK.
  4. Right-click on the new flow survey in the database tree.
  5. Select New | Item from the pop-up menu, where Item is one of Level, Observed depth event, Observed flow event, Observed velocity event, Pollutograph or Rainfall event. Click OK.
  6. Enter a name for the new event and click OK.
  7. Open the event and enter the data. See Opening an Event.
  8. Repeat from step 5 for each additional event type required for the flow survey.

Create a Flow Survey for a SWMM network

  1. In the Explorer Window, right-click on a Model Group.
  2. Select New SWMM | Flow survey from the pop-up menu.
  3. Enter a name for the new flow survey and click OK.
  4. Right-click on the new flow survey in the database tree.
  5. Select New | Item from the pop-up menu, where Item is one of Level, Observed depth event, Observed flow event, Observed velocity event or Rainfall event. Click OK.
  6. Enter a name for the new event and click OK.
  7. Open the event and enter the data. See Opening an Event.
  8. Repeat from step 5 for each additional event type required for the flow survey.

Importing Flow Surveys

Exporting Flow Surveys

Events

Opening an Event