topic ?Watershed from specific leak point in Water Resources Questions https://community.esri.com/t5/water-resources-questions/watershed-from-specific-leak-point/m-p/561968#M2904 <HTML><HEAD></HEAD><BODY><P style="direction: ltr;">Hello,</P><P style="direction: ltr;"></P><P style="direction: ltr;">I built a watershed GP which can run over the whole terrain.</P><P style="direction: ltr;">How can I make a GP which will calculate watershed from a specific point (a leak in the pipeline).</P><P style="direction: ltr;">I want to calculate watershed for a case of pipeline leakage.</P><P style="direction: ltr;"></P><P style="direction: ltr;">Thanks,</P><P style="direction: ltr;">Mary</P></BODY></HTML> Tue, 23 Aug 2016 07:42:52 GMT MikeGn 2016-08-23T07:42:52Z ?Watershed from specific leak point https://community.esri.com/t5/water-resources-questions/watershed-from-specific-leak-point/m-p/561968#M2904 <HTML><HEAD></HEAD><BODY><P style="direction: ltr;">Hello,</P><P style="direction: ltr;"></P><P style="direction: ltr;">I built a watershed GP which can run over the whole terrain.</P><P style="direction: ltr;">How can I make a GP which will calculate watershed from a specific point (a leak in the pipeline).</P><P style="direction: ltr;">I want to calculate watershed for a case of pipeline leakage.</P><P style="direction: ltr;"></P><P style="direction: ltr;">Thanks,</P><P style="direction: ltr;">Mary</P></BODY></HTML> Tue, 23 Aug 2016 07:42:52 GMT https://community.esri.com/t5/water-resources-questions/watershed-from-specific-leak-point/m-p/561968#M2904 MikeGn 2016-08-23T07:42:52Z Re: ?Watershed from specific leak point https://community.esri.com/t5/water-resources-questions/watershed-from-specific-leak-point/m-p/561969#M2905 <HTML><HEAD></HEAD><BODY><P>Questions:</P><P></P><UL><LI>Does "GP" stand for Geoprocessing Tool?</LI><LI>Is it a requirement that this be done with ArcHydro?&nbsp; If not, if you have access to the <EM>Spatial Analyst</EM> extension it can be done there.&nbsp; First, one would develop the overall watershed model first for the potential area of effect (i.e. start with a Digital Elevation Model and run Fill, Flow Direction, Flow Accumulation, etc). &nbsp; Then one would specifically derive the watershed for your leak point using <EM>Watershed</EM> (Spatial Analysis Toolbox), with the leak point being as the <EM>pour point</EM>.</LI></UL><P></P><P><A class="link-titled" href="http://support.esri.com/technical-article/000012346" title="http://support.esri.com/technical-article/000012346">How To: Create a watershed model using the Hydrology toolset</A>&nbsp;</P><P><A class="link-titled" href="http://desktop.arcgis.com/en/arcmap/10.3/tools/spatial-analyst-toolbox/how-watershed-works.htm" title="http://desktop.arcgis.com/en/arcmap/10.3/tools/spatial-analyst-toolbox/how-watershed-works.htm">How Watershed works—Help | ArcGIS for Desktop</A> </P><P></P><P></P><P>Chris Donohue, GISP</P></BODY></HTML> Tue, 23 Aug 2016 14:45:56 GMT https://community.esri.com/t5/water-resources-questions/watershed-from-specific-leak-point/m-p/561969#M2905 ChrisDonohue__GISP 2016-08-23T14:45:56Z