EFFECT OF SOLAR HELIOSPHERIC PARAMETERS ON DIFFERENT COMPONENTS OF DAILY VARIA- TION IN COSMIC RAY INTENSITY

• Main Authors: Rekha Agarwal Mishra, Rajesh K. Mishra
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Inuvik
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.484.6582; http://www-rccn.icrr.u-tokyo.ac.jp/icrc2003/PROCEEDINGS/PDF/967.pdf

The data of three different neutron monitoring stations, Deep River, Inuvik and Tokyo located at different geomagnetic cutoff rigidities and altitudes has been harmon-ically analysed for the period 1980–95 to investigate for a comparative study of diurnal, semi-diurnal and tri-diurnal anisotropies in cosmic ray (CR) intensity in connection with the change in IMF (Bz) component and solar wind velocity on 60 quietest days (60 QD). It is observed that the amplitudes of all the three harmonics increases during the period 1982–84 at all the stations during the high speed solar wind stream (HSSWS) epoch and remains low during the declining phase of the stream. The amplitudes of the three harmonics have not any obvious characteristics associated with the time variation of magnitude of Bz component. The phases of all the three harmonics have not time variation characteristics associated with solar wind velocity and Bz. 1.