Strong turbulence was encountered by the German High-Altitude Long-Range Research Aircraft (HALO) at flight level 430 (13.8 km) on 13 October 2016 above Iceland. In this event the turbulence caused altitude changes of the research aircraft of about 50 m within a period of approximately 15 s. Additionally, the automatic thrust control of the HALO could not control the large gradients in the horizontal wind speed and, consequently, the pilot had to switch off this system. Simultaneously, the French Falcon of Service des Avions Français Instrumentés pour la Recherche en Environnement (SAFIRE), flying 2 km below HALO, also encountered turbulence at almost the same location.


    Access

    Download


    Export, share and cite



    Title :

    Mountain-Wave Turbulence Encounter of the Research Aircraft HALO above Iceland


    Contributors:

    Published in:

    Publication date :

    2020



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Observation and simulation of mountain wave turbulence above Iceland: Turbulence intensification due to wave interference

    Wilms, Henrike / Bramberger, Martina / Dörnbrack, Andreas | German Aerospace Center (DLR) | 2020

    Free access

    Mountain Wave Pressure Drag and Aircraft Turbulence

    McCann, D. W. / American Meteorological Society | British Library Conference Proceedings | 1995



    ER-2 High Altitude Turbulence Encounter

    Jumper, G. / Cowley, J. / Hahn, D. et al. | British Library Conference Proceedings | 2009