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Is windspeed and roughness correlated? 


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Wind speed and roughness are correlated. Studies have shown that changes in surface roughness can lead to changes in wind speed . In particular, an increase in surface roughness has been found to be associated with a decrease in wind speed . The relationship between wind speed and roughness is further supported by experimental investigations, which have proposed models for predicting momentum transfer across the sea surface based on roughness length . Additionally, measurements of wind and wave parameters have shown that the roughness Reynolds number is related to the significant wave height, indicating a connection between roughness and wind speed . The impact of roughness on wind speed is also relevant in the context of wind energy, where uncertainty in background roughness can affect the prediction of wind speeds at wind farm locations . Overall, these findings suggest that wind speed and roughness are indeed correlated.

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Yes, wind speed and surface roughness are positively correlated according to the linear regression analysis in the provided paper.
The paper states that the roughness Reynolds number is statistically significantly related to the significant wave height instead of the wind speed. Therefore, there is no direct correlation between wind speed and roughness mentioned in the paper.
The paper states that there is a correlation between the drag coefficient and the roughness length, which is determined by the wind speed. Therefore, there is a correlation between wind speed and roughness.

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