The delineation node is used to cut catchments into pieces and bring several branches into one subcatchment.
A Delineation Node is always connected to a Major Node. To add a delineation node, click the Create Delineation button. Move and zoom in the map to the upstream of the south branch. Select the Major Node. The selected Major Node will be shown in the Selected Major Node field on the pop-up window of Create Delineation.
Then click on the flow path to add a delineation node. It is recommended to add the delineation node to be perpendicular as much as possible to the flow path. To see the connection line between the major node and the delineation node, check on the layer DelineationNodeLine under the Support layer.
Keep the window of Create Delineation open. Pan the map by holding the mouse middle wheel to next major Junction node and following the same way as above to add Delineation Nodes to all overland Junctions. When another Major Node is selected on the map, check the Selected Major Node field is updated in the window of Create Delineation and then click on the flow path to add a delineation node. Do not add delineation node to the storage unit and the overland junction at the sag exit.