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I am new to GIS, and I want to calculate the stream frequency and Strahler stream order in a watershed. I have already processed the DEM and there are 20 sub basins. A sample map what I want to get is attached.

Can someone give some guidance in this regard?

May be a link, steps or tutorial will be good.

enter image description here

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ArcGIS Desktop has an easy to use tool:

http://desktop.arcgis.com/en/arcmap/10.3/tools/spatial-analyst-toolbox/stream-order.htm

You'll need a stream and flow direction raster before you can run this tool.

The workflow is in the answers to Finding Stream Order from DEM using ArcGIS Desktop?

That will tell you all you need to know.

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  • I think thats not what i wanted to know, i already have stream order raster. i want to estimate the features shown in the figure attached.
    – khan
    Apr 16 '19 at 3:30

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