This line chart displays temperature readings over time for a transboundary river basin, using a smooth curve to connect data points. The visualization employs D3 v5 with a time scale on the x-axis and a linear scale for temperature, rendering the path via the line generator with curveBasis. Axes include tick marks and labels, with the chart framed by margins within an SVG. The data originates from a CSV file of basin temperature records loaded from a VizHub dataset.