1. Network flows
Wolfgang Schwanghart

2. Task 1 Modify the gridflow.m-file so that ...
The „flow“ starts in the cell with the linear index = 5
the „flow“ continues in the first cell after having reached the last cell (and NO!, don‘t create a second loop)
the flow direction is reversed

3. Task 2
Create a drainage network on a random grid with 100 rows and columns.
Calculate flow accumulation
And then:
Calculate a stream grid. The minimum number of cells required for stream initiation is 10.
And now DIFFICULT:
Calculate the flow convergence. This is the number of upstream neighbors of each cell.
Calculate the number of channelheads

4. Task 3