EAS372 Midterm: EAS 372 UofA 2011 Exam withSolutions
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Please answer all questions in the examination booklet. The convective inhibition (cin) is de ned by the integral zb g. 2 2 (cid:21) , and f (x1) dx gives the probability that a randomly sampled value of x lies in the range x1 dx/2. 2: the semi-logarithmic mean wind pro le u(z) = u kv ln(cid:18) z z0(cid:19) u kv. [ ln(z) ln(z0) ] gives the mean wind speed in the surface layer of the atmosphere under neutral strati ca- tion (kv = 0. 4 is the von karman constant and z0 is the roughness length of the surface). The mean drag of the atmosphere on the ground is given by. Eqn. (a) and the friction velocity u is fundamentally de ned in terms of this atmospheric drag or friction as u =p / . 3: the diagonal elements of the reynolds stress matrix.