Japanese Research Group Performs Largest Ever Meteorological Calculation on Supercomputer Fugaku
TOKYO, Nov 24, 2020 - (JCN Newswire) - A Japanese research group consisting of the National Institute for Environmental Studies, RIKEN, Fujitsu Limited, Metro, Inc., and the University of Tokyo has implemented an unprecedented, large-scale coupled calculation of global weather simulation and data assimilation, for a 3.5 km horizontal mesh with 1024 ensembles with the supercomputer "Fugaku", which is installed at the RIKEN Center for Computational Science in Kobe, Japan. The scale of the calculations performed in this study is approximately 500 times larger than daily ensemble-based data assimilation for weather forecasts performed by meteorological organizations throughout the world. This result demonstrates the high overall performance of Fugaku and showed that the collaborative development of the latest supercomputer, simulation models, and data assimilation systems can realize a much larger scale weather forecasting system. This result also offers the potential to significantly improve the accuracy of future weather forecasts and climate change predictions.Fig. 1 The Supercomputer FugakuFig. 2 NICAM-LETKF Data Assimilation System Execution Flow and Data MovementFig.3 Results of ...
