The Hydrologic Sampler is a plugin in HEC-WAT and only exists as a plugin, not as a stand alone tool. Therefore, all Hydrologic Sampler alternatives are created, edited, and utilized through HEC-WAT. 

HEC-WAT

Prior to creating a hydrologic sampling alternative, users must create an HEC-WAT study. Refer to the HEC-WAT User's Manual for a detailed discussion of the HEC-WAT software, including comprehensive instructions on how to build an HEC-WAT study for an FRA simulation. 

HEC-WAT (Version 1.1) main window.

 To create a hydrologic sampling alternative:

  1. From the Study Pane of the HEC-WAT main window, right-click on Hydrologic Sampling in the Models tree node, and select New. The Create New Hydrologic Sampling Alternative dialog box opens.

  2. Alternatively, from the HEC-WAT main window, from the Programs toolbar, click Hydrologic Sampler Icon.

    Note, this option only opens the Create New Hydrologic Sampling Alternative dialog box when no existing hydrologic sampling alternatives are available; otherwise, the Hydrologic Sampling Editor opens (review Hydrologic Sampling Editor Interface). 


    Create New Hydrologic Sampling Alternative dialog box with example name Test_HS entered.

  3. In the Name field enter a name for the Alternative(e.g., Test_HS). Optionally, enter a description in the Description field.
  4. Click OK, to create the new alternative and close the Create New Hydrologic Sampling Alternative dialog box.
  5. The Hydrologic Sampling Editor opens (review Hydrologic Sampling Editor Interface). From the Data to be Sampled list select the appropriate data that will be sampled (default – flow sampling). From the Sampling Method list; select the appropriate sampling method to be used for the hydrologic sampling alternative (default – Correlated Flow Frequency Curves).
  6. The HEC-WAT study now contains a hydrologic sampling alternative (e.g., Test_HS). In the study directory, under the hs folder, an *.hs file (e.g., Test_HS.hs) has been created. Hydrologic Sampling Editor Interface provides an overview of the Hydrologic Sampling Editor structure, navigation, and various shortcut options. Users can edit, save, copy, rename, and delete existing hydrologic sampling alternatives.