I have derived elevation profile of a river channel using USGS SRTM 1 ArcSec. I am interested to know whether Elevation Profile and Longitudinal Profile are synonymous?
2
-
1Same thing in my opinion – FelixIP Sep 26 '16 at 6:03
-
I have skimmed through Google but didn't find any reference, could you please provide any reference for more clarification? – Ben Sep 26 '16 at 6:05
3
An elevation profile or a topographic profile is a two-dimensional cross sectional view of the landscape. It provides a side view of the relief of the terrain along a line drawn between two locations on a topographic map.
Whereas, the longitudinal profile is a two-dimensional view along the river, and it characterizes average stream slopes and depths of riffles, pools, runs, glides, rapids and step/pools. Longitudinal profiles are measured in the downstream direction.
In your case you said you have derived elevation profile of a river channel, which I think it is longitudinal profile.
-
So I would have to indicate riffles, runs, glides etc on the Elevation Profile plotted from Digital Elevation Model to call is as 'Longitudinal Profile'? – Ben Sep 26 '16 at 6:38
-
I just had a walk 5 km long, started at point a, took a road B and use road c to return to point a. If I want to represent elevation change along the route I think both items will do – FelixIP Sep 26 '16 at 6:40
