WRF Simulations to Investigate Processes Across Scales (WRFSCALE)

Two graphs showing (left) vertical wind velocity (m/s) and (right) water vapor mixing ratio (g/kg) 1000 m above sea level in the well-developed boundary layer at 3:30 p.m., 23 August 2017 as simulated by WRF with 100 m horizontal resolution.
Image: University of Hohenheim

Numerical models are excellent tools to improve our understanding of atmospheric processes across scales since they provide a consistent 4D representation of the atmosphere. Project WRFSCALE consists of different sub-projects, applying the Weather Research and Forecasting (WRF) model at resolutions between 3 km and 100 m, performing investigations in the fields of data assimilation, bio-geoengineering and boundary layer research. By increasing the resolution to 100 m, the model starts to explicitly resolve the representation of turbulence. With such simulations and comparisons to high-resolution observations, it is the aim to better understand the turbulent boundary layer and its interaction with the underlying land surface.

Read the complete user report at the Gauss Centre for Supercomputing.

Principal Investigator

Hans-Stefan Bauer

Institute of Physics and Meteorology, University of Hohenheim