open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello

I set up a river model for quantitative simulation. I used the BOTTOM FRICTION as parameter for model calibration. I considered to use the mesh resolution, too but my elevation data is very coarse (only crosssectione every 100 m) so I think mesh refinement makes no sense?

Are there other parameters which I should take into account for a sensitivity analysis?

Thank you
Stefan