Sinks in Arc Hydro

Discussion created by jeffblack92 on Jan 30, 2014
Latest reply on Jan 30, 2014 by MBoucher21
Hello, I have a general question about sinks in Arc Hydro. I have a DEM and I am trying to impose known lakes and streams (in the form of shapefiles from the NHD dataset) into it.

I am confused about what a sink really is. I understand that it is a low point in the DEM, so are all the lakes considered sinks? I am just a little confused about what a proper workflow would be. I am thinking it would be level the DEM, then burn in the streams, then fill sinks, then do a flow direction with sinks, using the lake shapefile as sinks? Any guidance would be appreciated greatly.