Röttger, J.; Liu, C. H.; Chao, J. K.; Chen, A. J.; Chu, Y. H.; Fu, I.-J.; Huang, C. M.; Kiang, Y. W.; Kuo, F. S.; Lin, C. H.et al.; Pan, C. J.: The Chung-Li VHF-radar: Technical layout and a summary of initial results. Radio Science 25, pp. 487 - 502 (1990)
Röttger, J.; Liu, C. H.; Chao, J. K.; Chen, A. J.; Pan, C. J.; Fu, I.-J.: Spatial interferometer measurements with the Chung-Li VHF radar. Radio Science 25, pp. 503 - 515 (1990)
Röttger, J.; Rietveld, M. T.; La Hoz, C.; Hall, T.; Kelley, M. C.; Swartz, W. E.: Polar mesosphere summer echoes observed with the EISCAT 933-MHz radar and the CUPRI 46.9-MHz radar, their similarity to 224-MHz radar echoes and their relation to turbulence and electron density profiles. Radio Science 25, pp. 671 - 687 (1990)
Chu, Y.-H.; Hsu, T. S.; Liu, C. H.; Chao, J. K.; Röttger, J.: Characteristics of VHF radar echo power in the Taiwan area. Handbook for MAP 28, pp. 115 - 120 (1989)
Chu, Y.-H.; Woodman, R. F.; Liu, C. H.; Chao, J. K.; Röttger, J.: Using vertically pointing broad beam to measure atmospheric aspect sensitivity of VHF radar echoes. Handbook for MAP 28, pp. 89 - 99 (1989)
Franke, S. J.; La Hoz, C.; Röttger, J.; Liu, C. H.: Frequency domain interferometry of polar mesosphere summer echoes with the EISCAT VHF radar. Handbook for MAP 28, pp. 210 - 221 (1989)
Fu, I. J.; Liu, C. H.; Röttger, J.; Chao, J. K.: Subtropical middle atmosphere dynamics observed by the Chung Li radar. Handbook for MAP 27, pp. 423 - 426 (1989)
Hocking, W. K.; May, P.; Röttger, J.: Interpretation, reliability and accuracies of parameters deduced by the spaced antenna radar method in middle atmosphere applications. Pure Appl. Geophys. (PAGEOPH) 130, pp. 571 - 604 (1989)
Jones, G. O. L.; Winser, K. J.; Röttger, J.; La Hoz, C.; Franke, S. J.: A statistical review of the EISCAT PMSE 1988 data. Handbook for MAP 28, pp. 126 - 130 (1989)
La Hoz, C.; Röttger, J.; Rietveld, M.; Wannberg, G.; Franke, S. J.: The status and planned developments of EISCAT in mesosphere D-region experiments. Handbook for MAP 28, pp. 476 - 488 (1989)
Röttger, J.: Mean, tidal, and fluctuating winds in the middle atmosphere and lower thermosphere observed during MAP/WINE in northern Scandinavia. Handbook for MAP 27, pp. 251 - 270 (1989)
Röttger, J.: The interpretation of MST radar echoes: The present knowledge of the scattering/reflection and the irregularity generation mechanisms. Handbook for MAP 28, pp. 68 - 82 (1989)
Röttger, J.: The instrumental principles of MST radars and incoherent scatter radars and the configuration of radar system hardware. Handbook for MAP 30, pp. 54 - 113 (1989)
Röttger, J.; La Hoz, C.: Fine-structure of Doppler spectra of polar mesosphere summer echoes (PMSE) observed with the EISCAT 224-MHz radar. Handbook for MAP 28, pp. 107 - 114 (1989)
Röttger, J.; La Hoz, C.; Franke, S. J.; Liu, C. H.: Gravity wave steepening and tilting detected in high resolution Doppler spectra of polar mesosphere summer echoes (PMSE) observed with the EISCAT 224 MHz radar. Handbook for MAP 28, pp. 267 - 277 (1989)
First Light! The spectro-polarimeter of the world's largest solar telescope in Hawaii looks at the Sun for the first time. The instrument was developed in Germany.
Analyzing the high spatial resolution solar Ca II H and K emission data obtained by the SUNRISE mission and building a model of other stars more active than the Sun
Dr. Theodosios Chatzistergos receives award by the European Space Weather and Space Climate Association for his research findings on the historical activity of the Sun.
The Zdenĕk Švetska Senior Prize of the Solar Physics Division of the European Physical Society (EPS) recognizes Solanki’s pioneering contributions to solar research.