@article{oai:nipr.repo.nii.ac.jp:00000638, author = {Ikami, Akira and Ito, Kiyoshi}, journal = {Memoirs of National Institute of Polar Research. Ser. C, Earth sciences}, month = {Feb}, note = {P(論文), Two types of noise recorded in seismic explosion experiments around Syowa Station in Antarctica are discussed. One is wind-induced noise which is detected directly by a seismometer. This type of noise increases with a wind velocity, and when the wind velocity is over 15 m/s, seismic observations are not in success. With the object of noise reduction, seismometers buried in a hole at depths of 3, 5 and 10 m were examined, but the noise existed at 10 m. Seismometers should be buried deeper than 10 m. Another is electrostatic noise which frequently deranges a clock signal or destroys an electric circuit in the worst case. This noise is caused by drifting electrified snow, not by a seismometer itself. It was excited on a signal cable stretched on the snow surface from the seismometer to a recorder. To reduce this noise, the cable should be as short as possible and be laid in parallel with the direction of wind.}, pages = {43--49}, title = {Nature of noises on ice sheet in East Antarctica}, volume = {15}, year = {1984} }