Influence of atmospheric stratification on the integral scale and fractal dimension of turbulent flows

Tijera, Manuel; Maqueda, Gregorio; Yagüe, Carlos

doi:https://doi.org/10.5194/npg-23-407-2016

Articles | Volume 23, issue 6

https://doi.org/10.5194/npg-23-407-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Complex environmental and geophysical turbulence

https://doi.org/10.5194/npg-23-407-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 23, issue 6

Research article

|

14 Nov 2016

Research article |

| 14 Nov 2016

Influence of atmospheric stratification on the integral scale and fractal dimension of turbulent flows

Manuel Tijera, Gregorio Maqueda, and Carlos Yagüe

Data sets

Stable Atmospheric Boundary-Layer Experiment in Spain (SABLES 98): A Report J. Cuxart, C. Yagüe, G. Morales, E. Terradellas, J. Orbe, J. Calvo, A. Fernández, M. R. Soler, C. Infante, P. Buenestado, A. Espinalt, H. E. Joergensen, J. M. Rees, J. Vilá, J. M. Redondo, I. R. Cantalapiedra, and L. Conangla https://doi.org/10.1023/A:1002609509707

Short summary

This work investigates the possible correlations between the integral scale of the turbulent stratified flows in the atmospheric boundary layer and parameters characterizing topological features of the wind velocity field, such as fractal dimension and its stability properties, studied through the bulk Richardson number. Fractal dimension and the integral scale of the horizontal (u') and vertical (w') velocity fluctuations have been calculated using the mean wind direction as a framework.