Virtual training course: Advanced numerical methods for earth system modelling
Hydrostatic and non-hydrostatic dynamics, resolved and permitted convection
Speaker
Inna Polichtchouk
Description
During this presentation, we will discuss two of the questions faced by numerical weather prediction scientists as forecast models reach horizontal resolutions of 6 to 2 km:
• Do we need to abandon the primitive equations for a non-hydrostatic system of equations?
• Do we still need a deep convection parametrisation?
• and we will show what answers to these questions are given by very high resolution simulations of the IFS.
By the end of the presentation, you should be able to:
• discuss the limits of the hydrostatic approximation for numerical weather prediction
• explain the dilemma of parametrizing deep convection versus permitting explicit deep convection at resolution in the grey zone of convection