昭和基地周辺における海上の磁気偏差(日本航海学会第17回講演会)

抄録

We report about the magnetic variation measured by ship's compass on the steel ship near the Japanese Showa base in the Antarctia. As the coefficient A of deviation was zero, the mean of the deviations should give magnetic variation at the ship's compass course of eight principal points. By this method, we measured the variation at 16 stations in the Antarctic Ocean. Observed variation curves were similar to the one reported by English admiralty chart.