River Network Processing

Discussion created by taiseer on Jun 24, 2011
Ok, another question please,

I generated the river network from the dem raster. There is hicg degree of disconnectivity.

I want to connect it manually, but this is too much work.
My river raster is 0 for no river and 1 is for river paths. How can I delete all 1's which are smaller than 5 cells for example. How can I connect all neighbor 1's (which are closed to each other with 3 cells or closer).