The Korean Meteorological Administration (KMA) will officially operate a more detailed high-resolution numerical weather prediction model starting today (14th). A numerical weather prediction model is a software that predicts future weather by using supercomputers to calculate the state and movement of the atmosphere. The grid spacing of the existing Korean Integrated Model (KIM) was 12 km, but it will now be refined to 8 km.
The grid spacing, which is the size of the grid that divides the region in the model, increases the resolution as it becomes smaller. With higher resolution, changes in weather can be calculated more precisely. This improvement is expected to help accurately predict hazardous weather conditions such as heavy rainfalls and snowfalls in small areas by precisely implementing the effects of complex terrains.
The KMA explains that the 8 km resolution is among the highest levels of global numerical weather prediction models currently in operation worldwide. The European Centre for Medium-Range Weather Forecasts (ECMWF) has a 9 km resolution model, the UK has a 10 km, and Japan has a 13 km resolution model.
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