Nocturnal boundary layer turbulence regimes analysis during the BLLAST campaign

Yus-Díez, Jesús; Udina, Mireia; Soler, Maria Rosa; Lothon, Marie; Nilsson, Erik; Bech, Joan; Sun, Jielun

doi:https://doi.org/10.5194/acp-19-9495-2019

Articles | Volume 19, issue 14

https://doi.org/10.5194/acp-19-9495-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-9495-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 14

Research article

|

26 Jul 2019

Research article |

| 26 Jul 2019

Nocturnal boundary layer turbulence regimes analysis during the BLLAST campaign

Jesús Yus-Díez, Mireia Udina, Maria Rosa Soler, Marie Lothon, Erik Nilsson, Joan Bech, and Jielun Sun

Data sets

60 m tower/Meteorological parameters Lab. d'aerologie https://doi.org/10.6096/BLLAST.60MTOWER.METEO

Divergence site MAQ Wageningen University https://doi.org/10.6096/BLLAST.DivergenceSite

Short summary

This study helps improve the understanding of the turbulence description and the interactions occurring in the lower part of the boundary layer. It is carried out at an orographically influenced site close to the Pyrenees to explore the hockey-stick transition (HOST) theory. HOST is seen to be strongly dependent on both the meteorological conditions and the orographic features. Examples of intermittent turbulence events that lead to transitions between the turbulence regimes are also identified.