👉 A barograph is a type of chart used in hydrology to show streamflow over time. It consists of vertical bars that represent the water flow rate, typically measured in cubic meters per second (m³/s). These bars are usually drawn on a map or chart and can be used to visualize changes in streamflow over long periods. Barographs are particularly useful for understanding how different parameters such as elevation, slope, and river width influence streamflow. They provide a clear representation of the flow patterns
