As you can see, the elevation levels peak at the center and then going downwards radiating from the center. I would expect that there is no inflowing drain for this kind of terrain.
And hence, base on #195 and D8ContributingArea guide here, I would expect that the TauDEM should be able to nicely generate all the contributing cells.
But that's not the case! Even when -nc is selected, there are still a lot of cells missing contribution, as shown below:
There are also a lot of missing area if -nc is not set.
Why is this so? Here are my steps, and I've attached the tif file
I have a terrain that looks like this:
As you can see, the elevation levels peak at the center and then going downwards radiating from the center. I would expect that there is no inflowing drain for this kind of terrain.
And hence, base on #195 and D8ContributingArea guide here, I would expect that the TauDEM should be able to nicely generate all the contributing cells.
But that's not the case! Even when
-nc
is selected, there are still a lot of cells missing contribution, as shown below:There are also a lot of missing area if
-nc
is not set.Why is this so? Here are my steps, and I've attached the
tif
fileSite6.zip