I have a series of shapefiles using polylines to represent the hydro network of a region. As you can see in the picture, these polylines go into great detail. These polylines are very segmented even though it seems they run in one continuous line.
My goal is to isolate specific rivers from these shapefiles and make each rivers into one polyline. I have a list of which rivers I am targeting.
Most likely, these rivers would take the longest paths in these shapefiles. How can I determine longest path of segmented polylines? Once I find the longest path I can determine which river it represented and separate it into its own shapefile.
I need to data calculate sinuosity of rivers.
I'm using ArcGIS 10.1 with an ArcInfo license.