Magnetosphere Simulation



1. Name of Database:  Magnetosphere Simulation

2. Institution: Solar-Terrestrial Environment Laboratory, Nagoya University

3. Contents of Database:

3-Dimensional MHD Simulation of Solar Wind-Magnetosphere Interaction

Computer simulation codes, simulation data of the solar wind-magnetosphere interaction 
obtained by a 3-dimensional global MHD model, and information on use of the supercomputer.

As contents, three dimensional magnetohydrodynamic (MHD) codes (codes for the computer 
with small memory, vector parallel codes and scalar parallel codes for the scalar parallel 
supercomputer), graphic data of the three dimensional global MHD simulation of the solar 
wind-magnetosphere interaction, animation movie, three dimensional visualization (VRML: 
Virtual Reality Modeling Language), computer processing capability for the MHD simulation 
model, methods and example to use HPF (High Performance Fortran) and MPI (Message Passing 
Interface) in the MHD model.

A three-dimensional global magnetohydrodynamic (MHD) simulation of the interaction between 
the solar wind and the Earth's magnetosphere was presented for several solar wind and 
interplanetary magnetic field (IMF) conditions, such as a high density of the solar wind, 
large values of the IMF, IMF turns from northward to southward or from southward to northward.

The three-dimensional MHD simulation for the IMF rotation is also presented in a format of 
polar plot, structure of the three-dimensional magnetic field lines, cross sectional patterns, 
and reconnection sites in the magnetosphere. Moreover, the MHD simulation results with high 
spatial resolution are demonstrated every 30 seconds when the IMF changes its orientation to 
the north-south direction. 

The Earth's magnetospheric structure with no symmetric plane is shown for the dipole tilt 
when the IMF By and Bz components exist. Response of the earth's magnetosphere is also 
demonstrated when the satellite observation is used as input of simulation. It gives 
a physical simulation model and contributes to a fundamental research of the international 
space weather program. 

4. Examples of Database:

3-dimensional configuration of the magnetic field lines in the Earth's magnetosphere when the IMF is southward and the angle of dipole tilt is 30 degrees.3-dimensional configuration of the magnetic field lines in the Earth's magnetosphere when the IMF is northward and the angle of dipole tilt is 30 degrees.
3-dimensional configuration of the magnetic field lines, plasma temperature and plasma flow in the Earth's magnetosphere shown by VRML when the IMF has a component in the sun-earth direction as known the Parker spiral as well as southward and duskward components.
5. Contact:  Solar-Terrestrial Environment Laboratory  Nagoya University  Tatsuki Ogino Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan  E-mail: ogino[AT]stelab.nagoya-u.ac.jp  TEL: +81-52-747-6348 FAX: +81-52-789-5891 6. Public Offering of Database: Homepage of Computer Simulation http://center.stelab.nagoya-u.ac.jp/web1/simulation/index.html http://center.stelab.nagoya-u.ac.jp/web1/simulation/index_j.html Homepage of Magnetosphere (Global): Data site http://center.stelab.nagoya-u.ac.jp/web1/simulation/global/jikiken.html http://center.stelab.nagoya-u.ac.jp/jst/jikiken.html Homepage of the Center for Joint Observations and Data Processing http://center.stelab.nagoya-u.ac.jp/index_e.html http://center.stelab.nagoya-u.ac.jp/index.html

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