Institute of Physics, College of GeneraI Education, University of Tokyo:Tokyo Astronomical Observatory, University of Tokyo:The Japanese Antarctic Research Expeditions, 1956-57 and 1957-58:The Wintering Party of JARE 1959-60
In 1959 III JARE (the third Japanese Antarctic Research Expedition) performed several optical observations of aurora at Syowa Base which is located at 69°00'S, 39°35'E and 14m above sea level. From statistical treatment of the all sky camera films and spectra, it has become known that the auroral maximum zone lies to the south of Syowa Base and aurora can be classified into the following three types ; (a) yellow-greenish aurora, (b) aurora with red lower border, and (c) entirely red aurora or only the upper part red. It has also been unraveled that the position of auroral zone may be distinguished by its type and the position of each zone varies with local time.