topic Creating features for coastal &amp;quot;line source&amp;quot; watersheds? in Water Resources Questions https://community.esri.com/t5/water-resources-questions/creating-features-for-coastal-amp-quot-line-source/m-p/184470#M875 <HTML><HEAD></HEAD><BODY><SPAN>I'm using ArcGIS 9.3.1 and ArcHydro Tools 9 to delineate watersheds in the Gulf of Alaska.&nbsp; </SPAN><BR /><BR /><SPAN>I've delineated all watersheds that have a contributing drainage of over 1,000 sq. km, but I also need to delineate coastal "line source" watersheds that drain directly to the coast rather than into major streams/rivers.&nbsp; It's easy to see these watersheds; they're right between coastal drainage points (where flow length = 0) as shown in this image. </SPAN><BR /><BR /><SPAN>Does anyone know how I can generate a feature class from these coastal line source watersheds?&nbsp; Obviously, I could trace them by hand, but this would be super tedious.&nbsp; I'm hoping to automate this process.&nbsp; </SPAN><BR /><BR /><SPAN>I've attached a jpeg that shows the "line source" watersheds I want to delineate.&nbsp; </SPAN><BR /><BR /><SPAN>Thanks for the help!</SPAN></BODY></HTML> Tue, 17 Aug 2010 20:00:21 GMT StavrosCalos 2010-08-17T20:00:21Z Creating features for coastal &quot;line source&quot; watersheds? https://community.esri.com/t5/water-resources-questions/creating-features-for-coastal-amp-quot-line-source/m-p/184470#M875 <HTML><HEAD></HEAD><BODY><SPAN>I'm using ArcGIS 9.3.1 and ArcHydro Tools 9 to delineate watersheds in the Gulf of Alaska.&nbsp; </SPAN><BR /><BR /><SPAN>I've delineated all watersheds that have a contributing drainage of over 1,000 sq. km, but I also need to delineate coastal "line source" watersheds that drain directly to the coast rather than into major streams/rivers.&nbsp; It's easy to see these watersheds; they're right between coastal drainage points (where flow length = 0) as shown in this image. </SPAN><BR /><BR /><SPAN>Does anyone know how I can generate a feature class from these coastal line source watersheds?&nbsp; Obviously, I could trace them by hand, but this would be super tedious.&nbsp; I'm hoping to automate this process.&nbsp; </SPAN><BR /><BR /><SPAN>I've attached a jpeg that shows the "line source" watersheds I want to delineate.&nbsp; </SPAN><BR /><BR /><SPAN>Thanks for the help!</SPAN></BODY></HTML> Tue, 17 Aug 2010 20:00:21 GMT https://community.esri.com/t5/water-resources-questions/creating-features-for-coastal-amp-quot-line-source/m-p/184470#M875 StavrosCalos 2010-08-17T20:00:21Z