Preprints  

This paper describes the details of the Japan's participation in the European Incoherent Scatter (EISCAT) Radar Scientific Association as an official associate country in 1996, emphasizing strong collaborations with Norwegian scientists and the EISCAT Association.

Due to anthropogenic disturbances on the Potsdam Magnetic Observatory a sub-observatory was installed in 1907 at the village of Seddin. Only variometer recordings were performed in Seddin. The launch of the DC powered service of the Berlin suburban railways in 1928 influenced the observations in Potsdam and Seddin. The absolute measurements were moved to Seddin and a new observatory was planned in Niemegk. Seddin Observatory was closed in 1932.

Gauß, Weber und Humboldt initiated the systematic observation of the Earth’s magnetic field in Germany. The first geomagnetic observatories were installed in Munich, Berlin and Wilhelmshaven. The Potsdam Magnetic Observatory was officially opened on 1 January 1890. Due to anthropogenic disturbances a sub-observatory was installed in 1907 at the village of Seddin. The launch of the DC powered service of the Berlin suburban railway system in 1928 terminated the observations in Potsdam.

The article describes the international seismological cooperation at the beginning of the last century and how this cooperation changed due to WWI. These changes were the direct reasons leading to the foundation of the Deutsche Seismologische Gesellschaft in 1922, which changed its name to Deutsche Geophysikalische Gesellschaft two years later. Then it describes the further development of the relationship between German geophysicists and their colleagues until the beginning of WWII.

The Madden-Julian Oscillation (MJO) is an important phenomenon in tropical meteorology first discovered in the early 1970's by Roland Madden and Paul Julian, In this paper, Roland Madden relates the story of developments in theory, observations, and analysis techniques in the 1960s that led to that discovery.