A comparison of different types of stress measurement

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Abstract
Wind stresses computed from the profile of the mean wind at Brookhaven are compared with Reynolds stresses at 109m. Two methods are used to obtain the surface stress from the mean winds: one is based on three observations up to 125 m, the second on the observation at the lowest level only, as well as a roughness length determined previously.The stresses found by both these techniques agree in order of magnitude with the Reynolds stresses, varying from about 1 to 10 dynes cm−2. With respect to actual numerical values, only the wind stress determined from the lowest‐level wind agrees well with the Reynolds stress.