Chao, J. K.; Kuo, F. S.; Chu, Y. S.; Fu, I.-J.; Röttger, J.; Liu, C. H.: The first operation and results of the Chung-Li VHF radar. Handbook for MAP 20, pp. 359 - 363 (1986)
Holden, D. N.; Ulbrich, C. W.; Larsen, M. F.; Röttger, J.; Ierkic, H. M.; Swartz, W.: UHF and VHF radar observations of thunderstorms. Handbook for MAP 20, pp. 288 - 292 (1986)
Ierkic, H. M.; Röttger, J.; Hagen, J. B.; Zimmerman, R. K.: Method to determine the optimal parameters of the Arecibo 46.8 MHz antenna system. Handbook for MAP 20, pp. 420 - 424 (1986)
Larsen, M. F.; Röttger, J.; Dennis, T. S.: Comparison of vertical velocities analyzed by a numerical model and measured by a VHF wind profiler. Handbook for MAP 20, pp. 44 - 47 (1986)
Larsen, M. F.; Röttger, J.; Holden, D. N.: Observations of vertical velocity power spectra with the SOUSY VHF radar. Handbook for MAP 20, pp. 231 - 235 (1986)
Maekawa, Y.; Aso, T.; Röttger, J.; Czechowsky, P.; Rüster, R.; Schmidt, G.; Hirota, I.; Woodman, R. F.; Kato, S.: A cooperative synchronous observation of winds and tides in the equatorial lower stratosphere and mesosphere using VHF radars at Jicamarca and Arecibo. J. Geomag. Geoelectr. 38, pp. 81 - 97 (1986)
Rastogi, P. K.; Mathews, J. D.; Röttger, J.: Simultaneous VHF and UHF radar observation of the mesosphere at Arecibo during a solar flare: a check on the gradient-mixing hypothesis. Handbook for MAP 20, pp. 103 - 110 (1986)
Röttger, J.: The use of the experimentally deduced Brunt-Väisälä frequency and turbulent velocity fluctuations to estimate the eddy diffusion coefficient. Handbook for MAP 20, pp. 173 - 178 (1986)
Röttger, J.: Comparison of reflectivity and wind profiles measured on 46.8 MHz and 430 MHz at the Arecibo Observatory. Handbook for MAP 20, pp. 307 - 308 (1986)
Röttger, J.; Fu, I.-J.; Kuo, F. S.; Liu, C. H.; Chao, J. K.: On the use of colour reflectivity plots to monitor the structure of the troposphere and stratosphere. Handbook for MAP 20, pp. 489 - 490 (1986)
Röttger, J.; Ierkic, H. M.; Zimmerman, R. K.; Hagen, J.: Investigations of the lower and middle atmosphere at the Arecibo Observatory and a description of the new VHF radar project. Handbook for MAP 20, pp. 349 - 358 (1986)
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.