Vision and Goal
GEMSIS (Geospace Environment Modeling System for Integrated Studies) of STEL, Nagoya University, is the modeling project for understanding energy and mass transportation from the Sun to the Earth in the geospace environment. In order to understand the geospace environments, we develop physics-based models as well as empirical models using in-situ satellite measurements and global ground-based measurements. Comparisons between models and observational results are essential to improve the models and to eventually understand the dynamics of the geospace.
Phase 1 of the GEMSIS project (FY2007-2009) focuses on understanding the high-energy particle environment in geospace and developing basic technologies for geospace modeling. The main subjects of Phase 1 of the GEMSIS project are as follows:
- generation and acceleration process of energetic particles in geospace
- electro-magnetic coupling and mass transport between the magnetosphere and ionosphere
- global distribution of ionospheric potential
- development of basic technologies for cross-scale simulations
In the GEMSIS project, researchers who have different research skills, such as data analysis and numerical simulations, have joined together and developed physics-based models and empirical models using various kinds of observational data.
One characteristic of the GEMSIS project is participation by both the observational groups and the modeling group at STEL, as well as close collaboration between researchers who major in different fields, from the Sun to the Earth.