Simple expressions for correcting wind speed data for elevation |
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| Institution: | 1. Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, Hubei 430074, China;2. College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;1. Department of Chemical Engineering, National Institute of Technology Srinagar, Hazratbal 190 006, India;2. Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee 247 667, India;3. Department of Mechanical Engineering, National Institute of Technology Srinagar, Hazratbal 190 006, India;1. Monterrey, NL, Mexico;2. Senior Fellow, Sealy Center on Aging; Director, WHO/PAHO Collaborating Center on Aging and Health, The University of Texas Medical Branch, United States |
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| Abstract: | Using the logarithmic wind profile and typical values of dimensionless sea roughness for different sea states, simple power expressions are derived for the wind profile over water. The power expressions are useful for correcting measured wind speed data at a given elevation (up to an elevation of 60 m) to the standard elevation of 10 m commonly used in coastal engineering studies. The analysis shows that the 1/7 power expression (suggested in U.S. Army Corps of Engineers, 1984. Shore Protection Manual, Vol. 1. Coastal Engineering Research Center, Vicksburg, USA.] and commonly used today) is a good approximation (<3% error) of the logarithmic profile for various sea states up to an elevation of 20 m. Above this elevation, the 1/7 power expression underestimates the wind speed for moderate to fully developed sea states. |
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