A radial wind rose chart displays wind speed and direction data from a CSV file, using a circular layout where each of the compass directions forms a segment whose length corresponds to wind speed. The chart uses stacked bars colored by speed range from blue to red, with the data loaded via `d3.csv`. The implementation combines D3's `scaleLinear`, `scaleBand`, and `scaleOrdinal` with a custom `radial` scale function that applies a square-root transformation to map linear data onto a circular radius. Angular axes and concentric circular gridlines are generated using `axisLeft` with a transformed radius scale, while the chart is rendered as SVG.