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Reanalysis Intercomparison Dataset

  • What is the Reanalysis Intercomparison Dataset?
  • Project diagram
  • VAi (Value-added information creation)
  • Role of NAMR
  • Role of 4DVE

What is the Reanalysis Intercomparison Dataset?

A project to promote the inter-comparison of many atmospheric reanalysis datasets created in Japan, Europe and the United States. To facilitate the comparison of atmospheric reanalysis data, we will provide atmospheric diagnostic as zonal means on pressure levels, and as 2-D maps at the Earth’s surface and selected isobaric surfaces.

・Reanalysis Intercomparison Dataset

Project diagramHover over blue buttons to open commentaries

  • ES4 ES4ES4Earth SimulatorEarth Simulator (ES4) is a multi-architecture supercomputer based on AMD EPYC CPUs, combined with accelerators (NEC SX-Aurora TSUBASA and NVIDIA GPU A100).
  • DA DADASuper Computer System DA (Data Analyzer system) is a supercomputer system equipped with Intel processors with high performance and high reliability.
  • DIAS DIASDIASData Integration
    and Analysis System
    The data obtained from observations in each region is collected, analyzed, and converted into useful information for crisis management against threats such as global environmental problems and large-scale natural disasters.
  • NAMR Numerical Analysis Repository NAMR is a numerical analysis repository (numerical analysis methods: artificial intelligence, sparse modeling, finite element method, particle method, verification method) Role of NAMR
  • 4DVE 4D Virtual Earth4DVE stores analysis data including their time fluctuations, and develops and maintains a system that allows users to seamlessly combine and extract information. It is commonly called the 4th Dimensional Virtual Earth. Role of 4DVE
  • VAi VAi(Value-Added-Information Generation)VAi aims to contribute to the resolution of policy issues and the development of a sustainable socio-economic system by creating and disseminating information that meets various needs. VAi Details

VAi (Value-added information creation)

VAi aims to contribute to the resolution of policy issues and the development of a sustainable socio-economic system by creating and disseminating information that meets various needs.

  • Providing intercomparison information of atmospheric reanalysis data
    Based on atmospheric reanalysis data collected on 4DVE from all over the world, NAMR conducts comparative analyzes of various atmospheric diagnostic values, and provides the inter-comparison information on 4DVE to the general public, including atmospheric and climate scientists worldwide.

Role of NAMR

NAMR is a numerical analysis repository (numerical analysis methods: artificial intelligence, sparse modeling, finite element method, particle method, verification method)

  • Analyze atmospheric diagnostic values for mutual comparison
    Analyze various atmospheric diagnostics from the atmospheric reanalysis data saved in 4DVE
    Analyze atmospheric diagnostic values for mutual comparison

Role of 4DVE

4DVE stores analysis data including their time fluctuations, and develops and maintains a system that allows users to seamlessly combine and extract information. It is commonly called the 4th Dimensional Virtual Earth.

  • Collect and store atmospheric reanalysis data for mutual comparison
    We collect and store atmospheric reanalysis data created in Europe and the United States, including Japan.

  • Provides information for the inter-comparison of reanalysis data
    Store diagnostic data analyzed by NAMR for the intercomparison of atmospheric reanalyses and provides it to the end user
    ・Reanalysis Intercomparison Dataset