With DEM as source, I created all necessary files like flow direction, accumulation,slope,streams,watersheds,pour point etc....
In my watershed(basin), I have many sub-watersheds(sub-basin) with streams and outlets at various elevations
I need o do analysis on the following two basis.
1) I need to calculate for every basin/sub-basin, the drainage area at every elevation contour along the stream. Please ref figure for better understanding my view.
2) I the figure there are six elevation contours (2 black top-bottom, 4 red in between) in the basin/sub-basin. In the figure, outlet is at the bottom elevation. Now I want to change outlet to all above elevations along the stream. And for each elevation point outlet along the stream, I need to calculate drainage area and volume.
I am trying various options with Arcgis,globalmapper,autocad,surfer,microstation and others.. Please give me some idea in doing this watershed analysis with less effort with any of the above said software/tools/extensions/toolbox with better accuracy. Thanks much for your time and support.