Anemometer Height in Froude Scaling of Wind Stress

Abstract
Extending previously proposed Froude scaling of wind stress coefficients, the paper suggests the appropriate anemometer heights for different wind fetches, and proposes a procedure of obtaining the wind stress by a single wind velocity measurement at this suggested anemometer height. The procedure consists of first estimating the fetch Renynolds number and then obtaining a tentative anemometer height from a prepared figure. Setting the anemometer at this height, an accurate wind velocity is measured; from this measurement and knowledge of the wind fetch, a corrected anemometer height can then be determined. Having the wind velocity measured at this final anemometer height, the wind stress coefficient can be obtained from another prepared figure.

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