This line chart visualizes one week of temperature data in San Francisco, sourced from Data Canvas - Sense Your City. The chart displays temperature in degrees Celsius over time using a smooth, curved area fill in maroon, with labeled axes for time and temperature. The visualization is built with D3 v5, using `scaleTime`, `scaleLinear`, `area` with `curveBasis`, and `axisBottom`/`axisLeft` to render the SVG elements, including a titled grid and axis labels.