How to Make Contours in InfoSWMM and H2oMAP SWMM

Subject:  How  to Make Contours in InfoSWMM and H2OMAP SWMM

It is easy to make contours out of node input data or node output data in InfoSWMM and H2oMAP SWMM using the Contour Tool in the Contour Tab of the Attribute Browser.  You can control the resolution and the type of smoothing for the created contour (Figure 1).  If you haveInfoSWMM Suite you can use the Contour to DEM command in the Subcatchment Manager to convert the created Contour to an Elevation or DEM file (Figure 2 and Figure 3).   The Layer properties for the created elevation can be altered in Arc GIS to make a better visual depiction of the elevation (Figure 4).

Figure 1.  Contour Tool in the Contour Tab of the Attribute Browser.

Figure 2.  Contour to DEM command in the InfoSWMM Subcatchment Manager will convert the created Contour to an Elevation or DEM file.

Figure 3.  Convert the Value Field and  NOT the level Field of the contour.

Figure 4.  The Arc GIS Layer properties can be used to alter the default color ramp and the number of classes used in the color ramp.