Fig. 3
From: Two decades of fumigation data from the Soybean Free Air Concentration Enrichment facility
Wind rose plot generated from 1-minute wind speed and direction data collected from Plot 3 between 2001 and 2021. Wind rose plots are polar graphs generated with the openair package in R48. The radii length of the concentric circles represents the percentage frequency of measurements that have wind speeds between 0 to 2 m/s (blue), 2 to 4 m/s (green), 4 to 6 m/s (orange), and >6 m/s (red). The wind direction ranges include plus or minus 15 degrees from the given direction, starting at 0° on the upper vertical axis (N) and moving clockwise in 30° increments back to 360°. In the lower right corner of the plots, the mean refers to the overall mean wind speed for the plot, and the calm percentage indicates the percentage of calm observations omitted from the wind rose plot. Following the convention of the National Weather Service, winds with a direction of 0° are considered ‘calm’, while winds with a direction of 360° are assumed to be from the north.
