Pre-defined watershed and streamnetwork

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Nyigam Bole

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Dec 1, 2021, 11:36:18 AM12/1/21

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Hello everyone!

My work requires creating gridded watershed for my study region. I have been able to generate gridded watershed shp file and sorted its gridcode starting from upperleft. Following that, I added 'GRIDCODE' and 'Subbasin' fields and numbered them accroding to the example inputs given.

But I am having quite some issues with streamnetwork generation. Here's the first one:

1. I am using the stream to feature tool to generate streamlines. While I use that, the tool automatically create streamlines and give them unique node numbers. According to the example inputs, the final outlet should be to node '0'. However, the stream to feature tool numbers the final outlet node number in sequence to the streamlines starting from upper left. I can edit and modify the outlet node to '0', but in the process, the sequence breaks.

for example, if the outlet was to node '123', then I can edit it to make it '0' but in the process, the node sequence breaks because the node sequence goes from '122' to '124'.