Institution: | S. M. Løvas, SlNTEF NHL, N-7034 Trondheim, Norway;l. Rubinstein, Institute for Space and Terrestrial Science (ISTS), York University, 4850 Keele Street. North York, Ontario, Canada M3J 3KI;C. Ulstad, Norwegian Meteorological Institute (DNMI), P.O. Box 43 Blindern, N-0313 Oslo, Norway. |