Rogue Sea Waves vs. Wind Speed
The strength of the wind is emperically measured by the Beaufort Wind Scale (0-12), created by Admiral Francis Beaufort in 1805.
Task 1: Try to graph this data to tease out the relationship between wind speed and wave height.
- 0: Wind speed less than 1 m/hr = Wave height of 0 feet
- 1: Wind speed 1-3 m/hr = Wave height of 0-1 feet
- 2: Wind speed 4-7 m/hr = Wave height of 1-2 feet
- 3: Wind speed 8-12 m/hr = Wave height of 2-3.5 feet
- 4: Wind speed 13-17 m/hr = Wave height of 3.5-6 feet
- 5: Wind speed 18-24 m/hr = Wave height of 6-9 feet
- 6: Wind speed 25-30 m/hr = Wave height of 9-13 feet
- 7: Wind speed 31-38 m/hr = Wave height of 13-19 feet
- 8: Wind speed 39-46 m/hr = Wave height of 18-25 feet
- 9: Wind speed 47-54 m/hr = Wave height of 23-32 feet
- 10: Wind speed 55-63 m/hr = Wave height of 29-41 feet
- 11: Wind speed 64-73 m/hr = Wave height of ? feet
- 12: Wind speed above 74 m/hr = Wave height of ? feet
Task 2: Two of the associated wave heights have been left blank...what would you predict for those respective wind speeds?
Final Note: In February, 2000, a British oceanographic research vessel, while sailing in the Rockall Trough west of Scotland, confronted the largest "rogue" wave ever recorded by scientific instruments in the open ocean. It was about 95 ft. in height. BUT...this is in conflict with a "rogue" wave confronted by the American ship USS Ramapo in February, 1933. Traveling from the Philippines to San Diego (CA), its senior officer, Lt. Fredric Margraff, measured a wave 112 feet high. Could these events be true?