2.0

Outputting Data in the HEC-2 Format
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This message indicates that the cross section has been selected correctly and is
being held in memory. All the sections are processed concurrently when you
end the selection process.
When you finish defining the cross sections, the HEC-2 Output Settings dialog
box is displayed.
4 Configure the output settings for the sections.
5 Click the Create File button to sample the HEC-2 sections and display the
HEC-2 Input Data File in the currently configured ASCII text editor.
6 Save the file with a .dat extension.
7 Close the text editor to continue.
Changing the HEC-2 Output Settings
Because the purpose of HEC-2 calculations is to compute water surface
elevations at specific cross section locations based on given flow values, the
HEC-2 Output Settings dialog box provides you the options necessary to make
these calculations.
To change the HEC-2 output settings
1 In the HEC-2 Output Settings dialog box, under Direction, select an appropriate
direction so that computations start at a beginning or ending cross section of
known or assumed starting conditions.
The Direction section has two options for determining the flow regime:
Subcritical Start at Downstream and Supercritical Start at Upstream.
2 Under Start Computations, select the starting water surface elevation of the
beginning or ending cross section.