For correspondence and subscription write to:

Editor-in-Chief, Journal of the Earth and Space Physics,

Institute of Geophysics, University of Tehran            P.O.Box 14155-6466, Tehran, I. R. Iran

Tel: +98-21-61118239, +98-21-61118251                  Telfax: +98-21-88630479

E-mail: igtu-jnl@ut.ac.ir                                               Website: http://jesphys.ut.ac.ir