Large-scale coherent structures in the atmosphere over a flat terrain

Leonardo Alcayaga*, Gunner Chr. Larsen, Mark Kelly, Jakob Mann

*Corresponding author for this work

    Research output: Contribution to journalConference articleResearchpeer-review

    74 Downloads (Pure)


    Large-scale coherent motions in the atmospheric boundary layer are investigated from field measurements made with two scanning wind lidars over a two-dimensional domain covering approximately 50 km2. The size, isotropy and two-point statistics of the coherent structures, show their influence on wind field homogeneity and local conditions that wind turbines might experience within a wind farm. For neutral atmospheric stability and high wind conditions, most of these structures are observed to be narrow streaks of low streamwise momentum having positive vertical velocity component (ejections), extending several kilometers. The results shown here are consistent with numerical simulations of atmospheric flows under similar conditions, and scale experiments made in laboratories.
    Original languageEnglish
    Article number062030
    Book seriesJournal of Physics: Conference Series
    Issue number6
    Number of pages10
    Publication statusPublished - 2020
    EventTORQUE 2020 - Online event, Netherlands
    Duration: 28 Sept 20202 Oct 2020


    ConferenceTORQUE 2020
    LocationOnline event
    Internet address


    Dive into the research topics of 'Large-scale coherent structures in the atmosphere over a flat terrain'. Together they form a unique fingerprint.

    Cite this