K. Yumoto, M. Shinohara, K. Nozaki, E.A. Orosco, Fr. V. Badillo, D. Bringas
In order to clarify the global nature of penetration mechanism of DP 2 electric fields from the polar to the day-and night-side equatorial ionospheres, and to understand the solar wind-Earth's magnetosphere coupling as a space weather study, we have carried out simultaneous magnetic and electric field observations using the Frequency Modulated-Continuous Wave (FM-CW) HF radar and the Circum-pan Pacific Magnetometer Network. The DP 2 electric fields caused by the solar wind interaction with the Earth's magnetic field must be imposed on the polar ionosphere, and the ionospheric DP 2 electric fields may penetrate instantaneously from the polar ionosphere into both the day- and night-side equatorial regions. © 2002 Elsevier B.V. All rights reserved.
Dept. of Earth and Planet. Sci., Kyushu Univ., Fukuoka, 812-8581, Japan; Solar-Terr. Environs. Lab., Nagoya Univ., Toyokawa, 442-8507, Japan; Communication Research Laboratory, Tokyo, 184-8795, Japan; Physics Dept., University of San Carlos, Cebu City, 6000, Philippines; Manila Observatory, Manila, 1099, Philippines; Muntinlupa Magnetic Observatory, National Mapping and Resource Information Authority Manila, Philippines
