EMPIRICAL MODEL OF RIVER MEANDERING GEOMETRY CHANGES DUE TO DISCHARGE FLUCTUATION

The river meandering geometry changes is a natural process has not been taken into consideration in the design and planning of river building.In fact river geometry changes were often results in river building failure. This research makes the empirical model river meandering geometry changes due to discharge fluctuationchanges based on the data Brantas River meanders in Mojokerto.River meandering geometry changes and trendsis a very complex and complicated process, in this research simplified byequation model sedimentation and scouring.River geometry changing processin this research is determined by quantify of unbalanced between scouring anddeposition at any cross section of the river at segment reviewed, by involving parameter river meandering.Change of geometry can be determined from the river meander parameters and discharge fluctuation changes,changes between these two points in one cross section and elevation rating curve is determined by Lagrange Interpolation.