Algorithm estimation of suspended sediments concentration in Bili-Bili Reseservoir
Sitti Nur Faridah, Mahmud Achmad, Samsuar, Fatimah R. Tantu.

Agricultural Engineering Study Program, Faculty of Agriculture, Hasanuddin University, Makassar, Indonesia

Abstract

Bili-Bili dam is located in the middle of the Jeneberang watershed in South Sulawesi Province, which was built for flood control, irrigation, raw water supply and hydroelectric power plants. However, in the last condition, there has been a decrease in the utilization of the reservoir service function due to changes in the conditions of the reservoir catchment area by sediment. Prediction of sediment concentrations in bili-bili reservoirs was analyzed from data of spectrometer usage. Estimation of Total Suspended Sediment (TSS) using a spectrometer by testing the reflectance of chromaticity transformation of bands on various regression equations. The TSS concentration prediction algorithm based on spectrometer measurements provides a coefficient of determination (R2) 0.556 and RMS error of 0.147, is the 3rd order polynomial equation for chromasite blue, that is: TSS = 38.23(KB)3 + 12.74(KB)2 - 22.83(KB) + 4.965.

Keywords: Bili-Bili Dam, Total Suspended Sediment, Algorithm

Topic: Smart Farming and Agricultural Engineering