Fejer, J. A.; Ierkic, H. M.; Woodman, R. F.; Röttger, J.; Sulzer, M.; Behnke, R. A.; Veldhuis, A.: Observations of the HF-enhanced plasma line with a 46.8-MHz radar and reinterpretation of previous observations with the 430-MHz radar. Journal Geophysical Research 88, pp. 2083 - 2092 (1983)
Larsen, M. F.; Röttger, J.: Comparison of tropopause height and frontal boundary locations based on radar and radiosonde data. Geophysical Research Letters 10, pp. 325 - 328 (1983)
Röttger, J.: EISCAT - Das europäische Incoherent-Scatter-Radar zur Erforschung der polaren Atmosphäre. Mitt. Astron. Gesellschaft 58, pp. 67 - 79 (1983)
Röttger, J.: Origin of refractive index fluctuations in the mesosphere as opposed to the stratosphere and troposphere. Handbook for MAP 9, pp. 143 - 144 (1983)
The European Space Agency (ESA) has given the green light to build the flight models of the spacecraft and science payload for the PLATO mission to search for extrasolar planets.
In the "Solar and Stellar Interiors" department, Laurent Gizon, Jesper Schou, Aaron Birch, Robert Cameron and others offer PhD projects in solar physics and astrophysics. Helioseismology and asteroseismology are used as important tools to study the oscillating Sun and stars.
The longest-serving solar observatory in space has turned 25 and is still making significant contributions to solar research. Its old age has become an important merit.