topic Using ArcHydro Tool For delineation in Water Resources Questions https://community.esri.com/t5/water-resources-questions/using-archydro-tool-for-delineation/m-p/698691#M3607 <HTML><HEAD></HEAD><BODY><P>Hi Everybody,</P><P>I am using ArcHydro tool for delineate my Basin Area, I don't understand the&nbsp;concepts behind some steps:</P><P>Here is the steps:</P><P>1- First I have to Use raster calculator and I use this equation: (DEM+0.5)*10&nbsp;</P><P>2-Int (the result from first step)</P><P>3- Set Target Location&nbsp;</P><P>4- Sink Processing</P><P>5- Sink Evaluation</P><P>6- Sink Selection</P><P>7- Fill Sinks</P><P>is there anybody who can clarify those above steps for me?</P><P>why we need to have a integer DEM?</P></BODY></HTML> Thu, 12 Dec 2019 20:47:14 GMT Fatemehsohrabi 2019-12-12T20:47:14Z Using ArcHydro Tool For delineation https://community.esri.com/t5/water-resources-questions/using-archydro-tool-for-delineation/m-p/698691#M3607 <HTML><HEAD></HEAD><BODY><P>Hi Everybody,</P><P>I am using ArcHydro tool for delineate my Basin Area, I don't understand the&nbsp;concepts behind some steps:</P><P>Here is the steps:</P><P>1- First I have to Use raster calculator and I use this equation: (DEM+0.5)*10&nbsp;</P><P>2-Int (the result from first step)</P><P>3- Set Target Location&nbsp;</P><P>4- Sink Processing</P><P>5- Sink Evaluation</P><P>6- Sink Selection</P><P>7- Fill Sinks</P><P>is there anybody who can clarify those above steps for me?</P><P>why we need to have a integer DEM?</P></BODY></HTML> Thu, 12 Dec 2019 20:47:14 GMT https://community.esri.com/t5/water-resources-questions/using-archydro-tool-for-delineation/m-p/698691#M3607 Fatemehsohrabi 2019-12-12T20:47:14Z