Keynote: Tomoki Miyakawa (Atmosphere and Ocean Research Institute, AORI, University of Tokyo)
The current status of global high-resolution modelling activities
When: 10:00 - 10:30
Abstract
Many research groups around the world started to develop a new generation of global high-resolution models, which have the capability to resolve the vertical energy transport associated with deep convective clouds in the tropics and ocean eddies. These models matured to a degree, that they can be evaluated and tested in inter-comparison projects. In the Dynamics of the Atmospheric general circulation Modelled On Non-hydrostatic Domains (DYAMOND) project, first a winter period with only atmospheric models, than a summer period with atmospheric and coupled models was simulated with many of the new generation models.
NICAM is one of the earliest developed models of the kind. It shows signs of improvement in many aspects such as the diurnal cycle, tropical cyclone, MJO, and general circulation, when run at 3.5 km grid spacing.
Fugaku, a state-of-the-art supercomputer can run NICAM with 3.5 km configuration at a speed of 2 simulation year per day (2SYPD). NICAM can be run at a global 220m horizontal grid spacing at its finest, although only for a very short run. The ocean-coupled version NICOCO is used with its ocean component at 0.1 degree grid spacing, which is capable of resolving meso-scale eddies. Recent activities of NICAM/NICOCO will be introduced, along with results and on-going plans of the DYAMOND intercomparison project.
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