Penentuan Garis Lengkung Sedimen (Sediment Rating Curve) pada Musim Hujan Sub Das Karai di Daerah Aliran Sungai (Das) Ular

Abstract

A watershed is a land area consisting of several rivers and tributaries to drain water from upstream to downstream. The purpose of this research is to obtain the equation of the sediment rating curve in Ular watershed. Sediment Rating curve is a curve which shows an equation that connects the river discharge and sediment discharge where the two variables are obtained from the results of measurements in the field. This research uses primary data (debit data and sediment concentration) and secondary data (climate data). Sediment sampling was done by collection using a sample bottle affixed to the wall of the measuring bulkhead. The results of the study were obtained where the sedimentary curve line was Qs = 17371Qw – 9936,1 with the coefficient of determination R2 of 0,8114.