@article{oai:nipr.repo.nii.ac.jp:00000841, author = {Nagata, T. and Hirasawa, T. and Ayukawa, M. and Fukunishi, H.}, journal = {Memoirs of National Institute of Polar Research. Special issue}, month = {Aug}, note = {P(論文), Four unmanned ground-based observatories will be established in the neighboring area of Syowa (69°00'S, 39°35'E) and Mizuho (70°42'S, 44°17'E) Stations, in coordination with the sounding rocket and balloon experiments at Syowa Station, and the GEOS-satellite and the Syowa-Iceland conjugate point program. A proto-type observatory has been accomplished and tested. The preliminary design is as follows : Scientific instruments : fluxgate and induction magnetometers, riometer (30MHz), VLF-detector. Power supply : wind generator and alkaline batteries. Timing : chronometer (stability (10)^8). Data acquisition : heat pen and magnetic tape recorder. Instrument shelter : sheeted with wood plate and insulated with styrene plate. Operating life : more than 4 months.}, pages = {44--51}, title = {Multipoint Ground Observations around Syowa Station, Antarctica by Means of Unmanned and Automatic Observatories}, volume = {6}, year = {1976} }