Plate, E. J., authorQuraishi, A. A., authorAmerican Meteorological Society, publisher2022-10-312022-10-311965-06https://hdl.handle.net/10217/235821Reprinted from Journal of Applied Meteorology v. 7, no. 3, June 1965, pages 400-408.CER64EJP-AAQ-2.Includes bibliographical references.Velocity distributions inside and above a model crop were investigated. The model crop consisted of flexible plastic strips fastened to the floor of a low speed wind tunnel. The experimental results indicated that at some distance xo downstream from the edge of the roughness cover the velocity profiles were similar inside and also above the cover. The length xo is discussed. The experimental results for the velocity distribution inside the plant cover were compared with field data obtained from different sources. A presentation of the velocity profiles inside the canopy in nondimensional form collapsed all field and laboratory data for a given crop type on one curve. The laboratory flow above the crop cover was analyzed using a power law form and using the logarithmic velocity distribution law. On the basis of the experimental results it is recommended that a two-tower arrangement of wind velocity measuring devices be used both for the evaluation of the surface shear stress and for checking the establishment of similarity profiles in the field.reportsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Hydraulic engineeringCover crops -- Water requirementsMeteorology, AgriculturalText