2.0

Outputting Pond Data
129
3 Specify how the data is separated in the output file:
If you want to} Then select}
separate the data with commas (,) Comma.
separate the data with spaces ( ) Space.
separate that data in columns based
on the width values specified in the
Field settings in this dialog box
Column.
4 To include a header in the output file, select the Header check box.
The following is an example of a header:
#Units=Elevation,m,Area,ha,Volume,m3,Volume,m3
# Elev Area Cumml Avg Cumml Conic
# m ha m3 m3
5 To determine the data order, column width, and decimal precision used for the
columns in the output file, use the following Field settings:
n
14: The field number determines the order in which the data appears. For
example, the field you select from the list next to the number 1 appears in
the first column, the field you select from the list next to the number 2
appears in the second column, and so on. You can specify up to four fields.
n
Field Lists: Select the type of pond data you want in each field (14).
n
Width: Enter a width, up to 25 characters, for each field.
n
Prec: Enter the decimal precision, up to eight places, for each field.
6 To display the pond output in your currently configured ASCII text editor, click
Output.
Generating a Stage-Storage Curve for the Pond
A stage-storage curve is a graph that plots a ponds storage volume versus the
ponds depth (or stage). It shows how much water volume is stored in a pond
at any given stage. Use the Pond Output ä Stage-Storage Curve command on
the Hydrology menu to generate a stage-storage curve for the selected pond.
You can save the stage-storage curve to a file you can use when calculating pond
routing and for calculating a pond outflow hydrograph.
To generate a ponds stage storage curve
1 Define a pond by using the pond commands on the Grading menu.
2 From the Hydrology menu, choose Pond Output ä Stage-Storage Curve.
The following prompt is displayed:
Select Polyline:
3 Do one of the following to select the pond perimeter:
n
Select the pond perimeter in the drawing.
n
Press ENTER to display the Pond Name dialog box, select a pond name, and
then click OK.