Question: Reference [192] studies wind power prospects for several locations in Saudi Arabia, among them Yenbu (Y) and Al Qaysumah (A). They report Weibull parameters measured

Reference [192] studies wind power prospects for several locations in Saudi Arabia, among them Yenbu (Y) and Al Qaysumah (A). They report Weibull parameters measured at a height of 10 m: λ_Y ≅ 5.9 m/s, k_Y ≅ 2.25; λ_A ≅ 5.1m/s, k_A ≅ 4.38. Estimate the maximum available wind power density and the wind power class for each site at a height of 80 m assuming a roughness length z₀ ≈ 2 × 10⁻⁵ (sand). Can you explain (on the basis of geography) why the winds at Yenbu are so much more variable than at Al Qaysumah?

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