topic total basin length in ArcGIS Spatial Analyst Questions

total basin length

AbdurrahmanGeymen — Wed, 14 May 2014 10:05:59 GMT

Dear Users,

I calculated the watershed in study area by ArcGIS Spatial Analyses Tools. I want to calculate the basin length that I show in the picture. How can I calculate the total basin length (the total length of the main branch) in each watershed ? Are there any tool ArcGIS 9.x or ArcGIS 10.x for this calculation? Would you please look at the attached Microsoft Word file?

http://gis.stackexchange.com/questions/71523/how-to-calculate-the-basin-length-which-point-to-which-point-and-how-in-arcgis

Best regards.

Abdurrahman

Re: total basin length

MarkBoucher — Wed, 14 May 2014 15:43:19 GMT

I use Arc Hydro. It is an add on to Arc Map. The forum for Arc Hydro is at http://forums.arcgis.com/forums/88-Arc-Hydro. There you will find a sticky that gives the ftp folder where you can download it.

Also, the US Army Corps of Engineers had ESRI create HEC-GeoHMS which runs on the same tools as Arc Hydro (http://www.hec.usace.army.mil/software/hec-geohms/). If you install GeoHMS, it installs the appropriate Arc Hydro version. Either way, these have tools you can use for hydrology that are more automated than the Spatial Analyst tools, though I think at the heart they use the SA functions.

Re: total basin length

DuncanHornby — Thu, 15 May 2014 10:10:51 GMT

Have a look at RivEX, if you convert your raster network to a vector network you can attribute your network in multiple ways, main stem being one of them. But this would be the main stem from the mouth of the network to the most upstream limit. Have a look at the online help for more information.