topic Combined Dendritic and Non-Dendritic Modelling in Water Resources Questions https://community.esri.com/t5/water-resources-questions/combined-dendritic-and-non-dendritic-modelling/m-p/496683#M2429 <HTML><HEAD></HEAD><BODY><P>I'm currently busy modelling Lake Chilwa (Malawi) which is a Non-Dendritic Basin. I've generated a hydrological DEM by lowering the level within the lake to ensure the that the lake is recognised as a natural sink.&nbsp; I've also had to recodition the DEM to ensure the drainage paths were correct at certain locations. I've then used fill with sinks ; flow direction with sinks ; Flow Accumulation ; Stream Definition ; Stream Segmentation (Using the Sink Link GRID) ; Combine Stream Link and Sink Link GRID ; Catchment GRID Delineation ; Catchment Polygon Processing ; Drainage Line Processing (Using the Combined Link GRID instead of the Stream Link GRID) ; Adjoint Catchment Processing.</P><P></P><P>The first that I have is that the DRAINID field is not being added to the DrainageLine Featue Class which is required for Adjoint Catchment Processing. Even if I add the field manually and populate it with the HYDROID from the Catchment Polygon the results from Batch Subwatershed or Watershed are incomplete.</P><P></P><P>I've attached a printscreen of my model as well as the output of my Batch Watershed Delineation results. Any advice to remedy the following errors will be appreciated</P></BODY></HTML> Mon, 24 Nov 2014 13:54:01 GMT PeterWilson 2014-11-24T13:54:01Z Combined Dendritic and Non-Dendritic Modelling https://community.esri.com/t5/water-resources-questions/combined-dendritic-and-non-dendritic-modelling/m-p/496683#M2429 <HTML><HEAD></HEAD><BODY><P>I'm currently busy modelling Lake Chilwa (Malawi) which is a Non-Dendritic Basin. I've generated a hydrological DEM by lowering the level within the lake to ensure the that the lake is recognised as a natural sink.&nbsp; I've also had to recodition the DEM to ensure the drainage paths were correct at certain locations. I've then used fill with sinks ; flow direction with sinks ; Flow Accumulation ; Stream Definition ; Stream Segmentation (Using the Sink Link GRID) ; Combine Stream Link and Sink Link GRID ; Catchment GRID Delineation ; Catchment Polygon Processing ; Drainage Line Processing (Using the Combined Link GRID instead of the Stream Link GRID) ; Adjoint Catchment Processing.</P><P></P><P>The first that I have is that the DRAINID field is not being added to the DrainageLine Featue Class which is required for Adjoint Catchment Processing. Even if I add the field manually and populate it with the HYDROID from the Catchment Polygon the results from Batch Subwatershed or Watershed are incomplete.</P><P></P><P>I've attached a printscreen of my model as well as the output of my Batch Watershed Delineation results. Any advice to remedy the following errors will be appreciated</P></BODY></HTML> Mon, 24 Nov 2014 13:54:01 GMT https://community.esri.com/t5/water-resources-questions/combined-dendritic-and-non-dendritic-modelling/m-p/496683#M2429 PeterWilson 2014-11-24T13:54:01Z