I have a DEM file of one district, and I have used those following tools in spatial analyst tools in ArcGIS 10.1 to get files related to the original DEM file：
- Flow direction
- Flow accumulation
Besides, I already have the point shapefile that these points are vertices in the river the one belongs to the same district as DEM file, so I use the point shapefile as the pour points in the river.
I use the watershed tool, setting my flow direction file and point shapefile as input files, try to get the subbasin area in this river.
I just got this：
But here's the schematic photo that I want：I want to get every subbasin area and calculate them, assigning them to the attribute of the designated segment
In what way should I use tools in ArcGIS to achieve my goal, thanks for giving me any suggestion!
Although I have a great answer to this question, I got another problem afterwards：Getting additional subbasin areas designated by points in river network？