Institution: | (1) Dept. of Atmospheric Sciences, University of California, 405 Hilgard Avenue, Los Angeles, CA 90095-1567, USA;(2) Finnish Meteorological Institute Geophysical Research, P.O. Box 503, SF-00101 Helsinki, Finland, and;(3) Dept. of Physics, Univ. of Helsinki, P.O.B. 9, FIN-oooo4, Finland;(4) The Aerospace Corporation M2 259, P.O. Box 92957, Los Angeles, CA 90009, USA;(5) Dept. of Physics, University of Oslo, P.O. Box 1048, N-0316 Oslo, Norway;(6) Dept. of Earth and Planetary Physics-STP Graduate School of Science, University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo 113, Japan;(7) Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, USA;(8) STELAB Nagoya University, 3-13, Honohara Toyokawa, Michi 442, Japan |