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DTSTART;TZID=America/Denver:20231115T113000
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UID:submissions.supercomputing.org_SC23_sess298_gbv103@linklings.com
SUMMARY:Establishing a Modeling System in 3-km Horizontal Resolution for G
 lobal Atmospheric Circulation Triggered by Submarine Volcanic Eruptions wi
 th 200 Billion Smoothed Particles Hydrodynamics
DESCRIPTION:Junshi Chen and Shenghong Huang (University of Science and Tec
 hnology of China (USTC), Laoshan Laboratory); Ziyu Zhang, Xiaoyu Hao, and 
 Jun Gu (University of Science and Technology of China); Hong An, Chun Zhao
 , and Yan Hu (University of Science and Technology of China (USTC), Laosha
 n Laboratory); Zhanming Wang, Longkui Chen, Yifan Luo, Jineng Yao, Yi Zhan
 g, Yang Zhao, and Zhihao Wang (University of Science and Technology of Chi
 na); Dongning Jia and Zhao Jin (Laoshan Laboratory); Changming Song and Xi
 sheng Luo (University of Science and Technology of China); and Xiaobin He 
 and Dexun Chen (National Research Center of Parallel Computer Engineering 
 and Technology, China)\n\nPeople are increasingly concerned about how tect
 onic processes affect climate and vice versa. We establish a cross-sphere 
 modeling system for volcanic eruptions and atmosphere circulation on a new
  Sunway supercomputer with a spatial resolution from 10m locally to 3km gl
 obally, using an improved multi-medium and multiphase smoothed particle hy
 drodynamics (SPH) combined with a fully coupled meteorology-chemistry glob
 al atmospheric modeling scheme. We achieve 400 billion particles and 80% p
 arallel efficiency using 39,000,000 processor cores. The simulation captur
 es the whole dynamic process of the Tonga eruption from shock waves, earth
 quakes, tsunamis, mushroom clouds to the following 6-7 days of transport a
 nd diffusion of ash and water vapor, and preliminarily obtains the influen
 ce effect of full coupling of volcano, earthquake, ocean and atmosphere. T
 his work is of great significance for deeply understanding the interaction
  between tectonic processes and climate change, and establishing an early 
 warning simulation system for similar global hazard events.\n\nRegistratio
 n Category: Tech Program Reg Pass\n\nSession Chair: John Taylor (Commonwea
 lth Scientific and Industrial Research Organisation (CSIRO), Australia)\n\
 n
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