Wind-Blown Sand Streamers and Turbulent Flow Structures
- King's College London, Department of Geography, United Kingdom (email@example.com)
This contribution presents results of field measurements of wind-blown sand streamers and turbulent flow structures in the boundary layer airflow during gale-force winds on a beach. Sand transport and streamers were measured using Large-Scale Particle Image Velocimetry (LSPIV) combined with laser particle sensors (Wenglors), and airflow turbulence was monitored with a co-located sonic anemometer. The data analysis yields insight into the precise spatio-temporal relationships between sand streamers and near-surface airflow turbulence, at a high resolution of 25 Hz and a centimetre scale, including how high-energy sweeps correlate with the passage of fast-moving saltation clusters, and how Turbulent Kinetic Energy (TKE) may be linked to sediment mass flux.
How to cite: Baas, A.: Wind-Blown Sand Streamers and Turbulent Flow Structures, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-7777, https://doi.org/10.5194/egusphere-egu2020-7777, 2020
This abstract will not be presented.