Hi, this site from ESRI explains the curvature, my question is about the profile curvature. They say that positive values represent a concave cell, were the flow will be accelerated. Negative values indicates a convex cell, and flow will be decelerated. I know other software’s use different signs but the logic of the acceleration shouldn’t be the contrary?I thought that a concave cell would in fact decelerate the flow!! probably read that in other sources but i need something absolutely correct to cite..
Which is right (without comparing magnitudes) a concave surface accelerates or decelerates the flow?
http://desktop.arcgis.com/en/arcmap/10.3/manage-data/raster-and-images/curvature-function.htm
As far as I can tell, there's a mistake in the document you linked to. Anyway, I suggest you use the feedback form at the bottom of the document to ask. Then you get an actual expert's answer and the error, if there is one, gets corrected.
Thank you very much, so the ESRI site has actually an error regarding the matter of the acceleration of the flow!! I ‘will follow your suggestion and report to them to be sure thanks again :)
Here's a graphic I built to help my students learn the difference between plan and profile curvature.
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