JapaneseGEMSIS-Magnetosphere
Outline
Aiming at understanding the dynamics of the inner magnetosphere during the geospace storms, the GEMSIS-Magnetosphere working team has addressed the development of new physics-based models for the global dynamics of the ring current (GEMSIS-RC model) and radiation belt (GEMSIS-RB model). We are also developing a high-resolution global MHD simulation code, which enables us to study MHD turbulence in the solar wind-magnetosphere interaction. Integrated data analysis studies on various science topics such as supply mechanisms of ring current ions and relativistic electron accelerations are also conducted using various types of geospace observations from space and from the ground. Some results are applied to our models to study the forecasting of radiation belt variation. Other ongoing research activities include the concept design for an integrated data analysis tool and a related database for effective research with various types of data, including those obtained from satellite observations, ground-based observations, and numerical simulations/models.
Contents
Simulation Studies
- Development of the GEMSIS Ring Current Model
- Development of the GEMSIS Radiation Belt Model
- Development of a High-Resolution Global MHD Simulation Model of the Earth’s Magnetosphere
Data Analysis and Applications
- Supply Processes of the Ring Current
- Dynamics of the Radiation Belts and Relativistic Electron Acceleration
- Substorm Triggering Mechanisms
- Development of a Space Radiation Forecast Algorithm