Which statement is correct about the Beaufort scale and wind rose?

• A. The Beaufort scale measures mood of sailors; the wind rose shows wind direction frequencies.
• B. The Beaufort scale measures wind speed, and the wind rose shows wind direction frequencies.
• C. The Beaufort scale measures wind speed, and the wind rose shows wind temperature.
• D. The Beaufort scale measures wind speed, and the wind rose shows currents.

Answer: (B)

The Beaufort scale is used to estimate wind speed based on observed effects on land or sea, while a wind rose is a chart that shows how often the wind comes from each direction (direction frequencies), often including wind speeds by direction. So the pairing that wind speed is what the Beaufort scale measures and wind direction frequencies are what the wind rose displays is correct. The other statements mix in mood, temperature, or currents, which aren’t what these tools quantify.