Create DEM link: https://youtu.be/b1ic2kLszBM
Extract by Mask link: https://youtu.be/R_i6tIsMrrY
Raster Clip link : https://youtu.be/9pW3LYNBOr8
Steps Watershed Delineation and Stream Order using DEM
here are the steps to delineate a watershed and determine stream order using a Digital Elevation Model (DEM) in ArcGIS:
First, make sure you have a DEM for the area of interest. If you don't have one, you can create it by watching this video Create DEM link: https://youtu.be/b1ic2kLszBM
Once you have the DEM, create a new project in ArcGIS and add the DEM to the project. To delineate the watershed, you need to first create a Fill and then flow direction raster. To do this, go to ArcToolbox - Spatial Analyst Tools - Hydrology -Fill - Flow Direction. In the Flow Direction tool, select the DEM as the input raster and specify a location and name for the output flow direction raster.
Once you have the flow direction raster, you can use it to create a flow accumulation raster, which will show the number of cells that flow into each cell. To do this, go to ArcToolbox - Spatial Analyst Tools - Hydrology - Flow Accumulation. In the Flow Accumulation tool, select the flow direction raster as the input raster and specify a location and name for the output flow accumulation raster.
Now, you can use the flow accumulation raster to delineate the watershed. Go to ArcToolbox - Spatial Analyst Tools - Hydrology - Watershed.
In the Watershed tool, select the flow accumulation raster as the input raster and specify a location and name for the output watershed polygon.
Once you have the watershed polygon, you can use it to determine stream order. To do this, go to ArcToolbox - Spatial Analyst Tools - Hydrology - Stream Order.
In the Stream Order tool, select the flow direction raster as the input raster, the watershed polygon as the input feature, and specify a location and name for the output stream order feature.
After running the Stream Order tool, you will have a new feature class that shows the stream order for each segment of the stream network in the watershed.
