This area chart displays a week of temperature data (in Celsius) for San Francisco, sourced from Data Canvas - Sense Your City. It uses D3 v5 to render an SVG visualization with a time-scaled x-axis and a linear y-axis. The main area path is drawn using `d3.area` with basis curve smoothing, while axis ticks and labels are generated with `d3.axisLeft` and `d3.axisBottom`.