[Seminar] Dr. Junhong Lee

Implementation of the 3D Smagorinsky turbulence scheme in the ICON model and its applications

The efforts have been taken to perform the simulation at a higher resolution. The storm- resolving simulation is one of the approaches to reduce the uncertainty due to convective parameterization. A much higher resolution is needed to resolve shallow convection which is also another major source of uncertainty. However, the previous turbulence parameterization is not valid on this scale. In the present work, the 3D Smagorinsky turbulence scheme is implemented in the ICOsahedral Non-hydrostatic (ICON) model, which enables the ICON model to perform even at the scale in large-eddy simulations. The details of the implementation and evaluations are discussed. Implemented 3D Smagorinsky turbulence scheme reproduces the mean profiles of reference model well. In addition, the applications using the 3D Smagorinsky turbulence scheme are briefly introduced.