We consider the Janjic (NCEP Office Note 437:61, 2001) boundary-layer model, which is one of the most widely used in numerical weather prediction models. This boundary-layer model is based on a number of length scales that are, in turn, obtained from a master length multiplied by constants. We analyze the simulation results obtained using different sets of constants with respect to measurements using sonic anemometers, and interpret these results in terms of the turbulence processes in the atmosphere and of the role played by the different length scales. The simulations are run on a virtual machine on the Chameleon cloud for low-wind-speed, unstable, and stable conditions.

我们考虑了Janjic（NCEP Office Note 437：61，2001）边界层模型，它是数值天气预报模型中使用最广泛的模型之一。此边界层模型基于许多长度比例，这些长度比例又是从母版长度乘以常量获得的。我们针对使用声速风速计的测量结果，分析了使用不同常数集获得的模拟结果，并根据大气中的湍流过程以及不同长度尺度所起的作用来解释这些结果。仿真是在Chameleon云上的虚拟机上运行的，以实现低风速，不稳定和稳定的条件。