topic MAJOR DRAINAGE SYSTEM (SURFACE) ANALYSIS in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/major-drainage-system-surface-analysis/m-p/400839#M5645 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><SPAN>How I can determine major drainage (surface) flow path and surface ponding in Arc Gis 9.3 based on the DEM?</SPAN><BR /><SPAN>Thanks in advance,</SPAN><BR /><SPAN>Andrea</SPAN></BODY></HTML> Sat, 27 Jul 2013 11:11:18 GMT PopAndrea 2013-07-27T11:11:18Z MAJOR DRAINAGE SYSTEM (SURFACE) ANALYSIS https://community.esri.com/t5/arcgis-spatial-analyst-questions/major-drainage-system-surface-analysis/m-p/400839#M5645 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><SPAN>How I can determine major drainage (surface) flow path and surface ponding in Arc Gis 9.3 based on the DEM?</SPAN><BR /><SPAN>Thanks in advance,</SPAN><BR /><SPAN>Andrea</SPAN></BODY></HTML> Sat, 27 Jul 2013 11:11:18 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/major-drainage-system-surface-analysis/m-p/400839#M5645 PopAndrea 2013-07-27T11:11:18Z Re: MAJOR DRAINAGE SYSTEM (SURFACE) ANALYSIS https://community.esri.com/t5/arcgis-spatial-analyst-questions/major-drainage-system-surface-analysis/m-p/400840#M5646 <HTML><HEAD></HEAD><BODY><SPAN>Andrea,</SPAN><BR /><BR /><SPAN>The ArcHydro Tools extension for ArcGIS 9.3.1 was developed and maintained by Esri Water Resources team and is still available for download from Esri's secure ftp site. It uses AGREE methods to characterize drainage.</SPAN><BR /><BR /><SPAN>See this ArcHydro forum thread for login and download instructions: </SPAN><A href="http://forums.arcgis.com/threads/82087-New-password-for-Arc-Hydro-ftp-site">http://forums.arcgis.com/threads/82087-New-password-for-Arc-Hydro-ftp-site</A><BR /><BR /><SPAN>Make it easy on yourself and use a secure transfer program, I prefer FileZilla but there are others.</SPAN><BR /><BR /><SPAN>Once installed, there are tutorials and exercise data and you can ask for help in either the </SPAN><A href="http://forums.arcgis.com/forums/88-Arc-Hydro">ArcHydro</A><SPAN> or </SPAN><A href="http://forums.arcgis.com/forums/120-Hydro">Hydro</A><SPAN> forums. </SPAN><BR /><BR /><SPAN>Stuart</SPAN><BR /><BR /><SPAN>p.s. If you really wan't to dig into the raster analysis methods, have a read of D. Nagel, J. Buffington &amp; C. Luce on IDDEA (US Forest Serivce) vs AGREE (Esri - Hellweger/Maidment) methods in this talk -- </SPAN><A href="http://www.fs.fed.us/rm/boise/AWAE/scientists/profiles/Nagel/Nagel_NWGIS2011_DrainageEnforcement_Compressed.pdf">http://www.fs.fed.us/rm/boise/AWAE/scientists/profiles/Nagel/Nagel_NWGIS2011_DrainageEnforcement_Compressed.pdf</A></BODY></HTML> Sat, 27 Jul 2013 12:01:33 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/major-drainage-system-surface-analysis/m-p/400840#M5646 V_StuartFoote 2013-07-27T12:01:33Z Re: MAJOR DRAINAGE SYSTEM (SURFACE) ANALYSIS https://community.esri.com/t5/arcgis-spatial-analyst-questions/major-drainage-system-surface-analysis/m-p/400841#M5647 <HTML><HEAD></HEAD><BODY><SPAN>Thank you Stuart. I install Arc Hydro Tools and I hope to solve problem.</SPAN><BR /><SPAN>Andrea</SPAN></BODY></HTML> Sat, 27 Jul 2013 13:43:06 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/major-drainage-system-surface-analysis/m-p/400841#M5647 PopAndrea 2013-07-27T13:43:06Z