Self-developed Earth simulation system version 1.0 first realizes computer simulation of earth system changes

Zhu Jiang, director of the Institute of Atmospheric Physics of the Chinese Academy of Sciences, announced in Beijing on the 23rd that the Chinese Academy of Sciences Earth System Model Version 1.0 software has been successfully run in the prototype system of the Earth numerical simulation device, which not only fills the blank of the Earth system model big data practice platform in China, but also shows that The independent scientific construction of large scientific projects proposed by Chinese scientists - the earth system numerical simulation device is completely feasible.

In 2009, under the advice of six academicians, Ye Haozheng, the National Development and Reform Commission incorporated the Earth system numerical simulation device into the “12th Five-Year Plan” for the construction of a large scientific device. According to Zhang Minghua, a researcher at the Institute of Atmospheric Physics of the Chinese Academy of Sciences, the 1.0 version of the Earth System Model contains a complete set of climate systems and ecosystems, integrating atmospheric, oceanic, sea ice, land surface hydrology, atmospheric chemistry and aerosols, dynamic vegetation, and marine life. Subsystem models or component modules such as geochemistry, and a complete coupling between modules through a flux coupler, can simulate the simulation of the atmosphere, ocean currents, land surface processes, ecology, etc. more realistically. “It enables Earth system science research to design and conduct controlled scientific experiments in the laboratory like physics and chemistry, which provides an unprecedented opportunity for new discoveries and breakthroughs to solve what we are currently facing. Various ecological and environmental issues provide technical support."

In terms of hardware, the Institute of Computing Technology, the Dawning Company, and the Network Information Center of the Chinese Academy of Sciences have pre-developed the prototype system with 1/10 of the scale of the large-scale scientific engineering-earth numerical simulation device. This is China's first dedicated large-scale computer in the field of earth system research. In this system, the Earth System Mode Version 1.0 software runs successfully, and the validity and feasibility of the Earth system numerical simulation device construction scheme are verified and improved from two aspects: hardware configuration architecture and scientific software inspection. China's atmospheric dynamics and academician of the Chinese Academy of Sciences Zeng Qingcun believes that the completion of the prototype system and the successful operation of the 1.0 version of the software indicate that the technical route is correct, and it has a milestone significance, which will effectively promote the construction of large scientific devices.

According to Zhu Jiang, the indicators of the Earth system numerical simulation device pre-research and prototype system construction projects are at the domestic leading level.

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