MAGDAS observations for space weather

Abstract

An objective of the STP researches is to support human activities in the geo-space in the twenty-first century from an aspect of fundamental study. In order to understand the Sun-Earth system and effects to human lives, the international CAWSES (Climate and Weather of Sun-Earth System) program and LWS (Living with Star) program started from 2004. IHY (International Heliophysical Year) program will start in 2007.
The objective of the MAGDAS/CPMN (MAGnetic Data Acquisition System/Circum-pan Pacific Magnetometer Network) Group is a creation of new physics; (1) couplings of the complex and composite systems of the Solar surface-Solar wind-Magnetosphere-Ionosphere-Thermosphere. The goals of our objectives are to construct Space Weather Stations (for observations) and Modeling Stations (for simulation/empirical modeling).
In order to study the complexity in the solar wind-Earth's magnetosphere-ionosphere-the Earth's surface system, the Space Environment Research Center (SERC) and the Department of Earth and Planetary Sciences, Kyushu University, Fukuoka, Japan started to conduct coordinated collaborations for Space Weather study, in cooperation with the Space Weather groups of about 30 organizations in the world. The SERC/SEE/STP group will take care of the MAGDAS observations at 50 stations in the CPMN region, and the FM-CW radar observations along the 210° magnetic meridian to study dynamics of geospace plasma changes during storms and auroral substorms, the electro-magnetic response of thermo-iono-magnetosphere to various solar wind changes, the penetration and propagation mechanisms of DP2-ULF range disturbances from the solar wind region into the equatorial ionosphere, and couplings of magneto-iono-thermosphere.
In the present paper, we will introduce our real-time data acquisition and analysis of MAGDAS/CPMN system, and preliminary results of these system; (1) monitoring and modeling of the global 3-dimensional current system to know the electromagnetic environment change, and (2) monitoring and modeling of the plasma density to know atmosphere and space plasma environment change.