This chart style is sometimes known as a "rose" chart, or "circumplex" chart.

This chart is created by using sector zones of variable directions and radii.

A stacked rose chart.

A polar vector chart, comprises of arrows with arbitrary lengths and directions.

A polar spline line chart with circle symbols for the data points.

Concentric circular background zones are used to indicate radial data ranges.

A polar line chart with cross symbols for the data points.

Sector background zones are used to indicate angular data ranges.