Multipoint Ground Observations around Syowa Station, Antarctica by Means of Unmanned and Automatic Observatories

摘要

Four unmanned ground-based observatories will be established in the neighboring area of Syowa (69°00u27S, 39°35u27E) and Mizuho (70°42u27S, 44°17u27E) 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.