Panagjurishte Observatory Upgrade for INTERMAGNET

摘要

Panagjurishte Geomagnetic Observatory was installed in 1937. From that time, this observatory runs continuously, the used instruments being a classical set made by Mating & Wiesenberg, Potsdam. A long collaboration exists then between Panagjurishte Observatory and Adolf Schmidt Geomagnetic Observatory Niemegk. In 2005 the GeoForschungsZentrum (GFZ) Potsdam and the Geophysical Institute Sofia of the Bulgarian Academy of Sciences (GIBAS) agreed in a cooperative programme, the aim being to upgrade the Panagjurishte Observatory with modern instruments in order to qualify it as an IMO. The GFZ provided a Dl-flux theodolite, a vector and a scalar variometer and the data logger. The GIBAS purchased 2 computers, an uninterruptible power supply unit, network components and the internet connection. A Polish proton magnetometer is still in use. The arrangement of the instruments, comparisons of the classical and the modern system and the first results of absolute measurement reductions are presented.