An Illustration Showing the Correlation between Discharge, Rainfall, and Total Suspended Solids

Abstract

The eastern portion of Indonesia's Riau Province is home to the Indragiri River, which is significant to the local ecology. The Indragiri River Water Data Point Map is the foundation for this study's investigation and analysis of the intricate environmental conditions surrounding rivers. On the other hand, the analysis's findings indicate that there is not much of a relationship between rainfall and water output in the Indragiri River—roughly 0.13%. One aspect that appears to lessen the impact of rainfall on river flow is situating the data collection point near the river mouth. The rainfall diagram from January to December shows seasonal variations; the highest rainfall is recorded in January, while the highest average rainfall is found in October. In addition to maps, the complexity of the Indragiri River can also be understood by the examination of total suspended solids (TSS) and river discharge. Though the relationship between river discharge and TSS tends to be in the same direction as the relationship between rainfall and TSS, the influence is not as strong. For instance, there is just a little 2.57% association between rainfall and TSS. The Indragiri River's water quality is also impacted by other elements, such as waste from diverse sources. Understanding the relationship between rainfall, river discharge, and water quality measures like TSS is crucial for maintaining the ecosystem of the Indragiri River and its environs, even though it may not be the major focus of this investigation.