When cooling curves of 10-m wind speed versus temperature are measured at different sites, some show the wind speed falling to near-zero as the evening progresses while at other sites the wind speed declines to a fairly constant value of over a half of the daytime value. A theory of the stable boundary layer after Nieuwstadt is used to determine what equilibrium wind speed might be expected at a site in flat terrain later in the evening and hence which sites are influenced by forces not included in the basic theory.

中文翻译：

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晚风的力量

当在不同地点测量 10 米风速与温度的冷却曲线时，一些显示随着晚上的进行风速下降到接近零，而在其他地点，风速下降到相当恒定的值，超过一半日间值。Nieuwstadt 之后的稳定边界层理论用于确定晚上晚些时候在平坦地形的地点可能预期的平衡风速，因此哪些地点受到基本理论中未包括的力的影响。