EGU2020-21700
https://doi.org/10.5194/egusphere-egu2020-21700
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Vertical distribution of Kolmogorov Constants of Atmospheric Turbulence over an Urban Surface

Weichen Ding1,2, Yu Shi1, Zhe Zhang1,2, and Fei Hu1,2
Weichen Ding et al.
  • 1State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China 100029
  • 2University of Chinese Academy of Sciences, Beijing, China 100049

The Kolmogorov constant is fundamental in stochastic models of turbulence, and significant in boundary layer meteorology especially. Though lots of experiments have been conducted to study Kolmogorov Constant, constant at high elevation and over urban surface was rarely researched. Therefore, in this paper, ultrasonic data at seven levels over an urban underlying surface were used to calculate the Kolmogorov constants of velocity. The results of Kolmogorov constants at the different floors indicated that the constants below 47m were smaller because of the influence of the urban canopy layer. Besides, the time-varying result showed that constants were universally independent of stability. Furthermore, Kolmogorov constant in this paper was close to the result determined by former experiments.

How to cite: Ding, W., Shi, Y., Zhang, Z., and Hu, F.: Vertical distribution of Kolmogorov Constants of Atmospheric Turbulence over an Urban Surface, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-21700, https://doi.org/10.5194/egusphere-egu2020-21700, 2020