Affiliation: | D. V. Divine, Norwegian Polar Institute, Polar Environmental Centre, N-9296 Tromso, Norway,;R. Korsnes, Norwegian Defense Research Establishment, Box 25, N-2007 Kjeller, Norway;A. P. Makshtas, International Arctic Research Center, 930 Koyukuk Drive, Box 757340, Fairbanks, AK 99775, USA. |