The atmospheric surface layer turbulence statistics and surface fluxes during the winter season over Anantapur, a semi-arid region, are investigated using sonic anemometers mounted 10 m and 18 m above ground level on a 32-m meteorological tower. This paper aims to investigate the applicability of Monin–Obukhov similarity theory and to understand the influence of wind speed on the turbulence intensities. Results reveal that normalized velocity variances follow 1/3 power law in unstable and stable conditions, while approaching constant values in the near-neutral conditions. The qualitative dependency of normalized velocity variances on stability is in agreement with past studies.

使用安装在离地面10 m和18 m高于32 m的气象塔上的声速风速计，对半干旱地区Anantapur冬季的地表湍流统计数据和表面通量进行了研究。本文旨在研究莫宁-奥布科夫相似理论的适用性，并了解风速对湍流强度的影响。结果表明，在不稳定和稳定条件下，归一化速度方差遵循1/3幂定律，而在接近中性的条件下趋近恒定值。归一化速度方差对稳定性的定性依赖性与过去的研究一致。