Vertical variation of roughness length at the Boulder Atmospheric Observatory |
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| Authors: | H A Panofsky |
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| Institution: | (1) The Pennsylvania State University, 16802 University Park, PA, USA;(2) 6222 Agee St., Unit 5, 92122 San Diego, CA, USA |
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| Abstract: | Observations near the BAO tower site have suggested a roughness length of about 0.01 m. Wind profiles from the tower yield values between 0.04 and 0.30 m. We now analyze fluctuations of vertical velocity at 10 m, and get intermediate values, differing with wind direction. Thus, inferred z
0 values increase systematically with height. |
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