This area chart displays daily temperature variations in a river basin, using a smooth curved line filled in maroon to emphasize the fluctuation pattern over time. The visualization loads CSV data from a VizHub dataset, parsing timestamps and numeric temperatures, then renders an SVG with D3 v5’s `scaleTime`, `scaleLinear`, and `area` generator with `curveBasis`. Axis labels and gridlines are styled via CSS, and the chart includes a title and clearly labeled time and temperature axes.