Dr. Fujino and his members conducted a field survey near Tuktoyaktuk from late February through mid-March, 1989. A ground radar system was employed to check the distributions of massive ice bodies.
Dr. Oho, of the Environmental Science Department of Hokkaido University, and his group conducted a field survey in Svalbard from mid- June through mid-August this summer. Main objectives were the measurement of the growth of a Pingo in Advendalen, hydrological study of ground water from glaciers, and recent developments of ice-wedge relation to the
cracking process. During the previous year they installed ground temperature recorders and other necessary equipment at the site. Precise ground levelings were made to detect the recent upheaval of ground associated with pingo growth. A chemical analysis of the ground water was also performed on site.
Dr. Fukuda and his group conducted a field survey at Mt. Daisetu in central Hokkaido where they had previously reported the presence of alpine permafrost. Geophysical surveys were made by means of electrical resistivity and seismic profiling. According to a preliminary report, the permafrost table of alpine perrnafrost was estimated as 15 m thick. This reading matched a previous figure determined through annual ground temperature fluctuations.
Dr. Fukuda and his group will also conduct a field survey on permafrost occurrence in the Antarctic Peninsula area. They will cooperate with Prof. E. Retarnal from the University of Chile and Dr. J. Strelin of the lnstituto Antarctica Argentina. They will visit King George Island, Seymour (Marimbio) Island, and James Ross Island. The expedition will start in mid-November and will end in late January, 1990.