Publikationen von H. Kopka

Stubbe, P.; Kopka, H.; Rietveld, M. T.; Dowden, R. L.: ELF and VLF wave generation by modulated HF heating of the current carrying lower ionosphere. Journal of Atmospheric and Terrestrial Physics 44, S. 1123 - 1135 (1982)

Thidé, B.; Kopka, H.; Stubbe, P.: Oberservations of stimulated scattering of a strong high-frequency radio wave in the ionosphere. Physical Review Letters 49, S. 1561 - 1564 (1982)

Dowden, R. L.; Stubbe, P.; Kopka, H.: VLF wave generation by modulated RF heating of the electrojet ionosphere. Advances in Space Research 1, S. 221 - 223 (1981)

Fejer, J. A.; Kopka, H.: The effect of plasma instabilities on the ionosherically reflected wave from a high-power transmitter. Journal Geophysical Research 86, S. 5746 - 5750 (1981)

Stubbe, P.; Kopka, H.: Generation of Pc5 pulsations by polar electrojet modulation: First experimental evidence. Journal Geophysical Research 86, S. 1606 - 1608 (1981)

Stubbe, P.; Kopka, H.; Dowden, R. L.: Generation of ELF and VLF waves by polar electrojet modulation: Experimental results. Journal Geophysical Research 86, S. 9073 - 9078 (1981)

Stubbe, P.; Kopka, H.: Modulation of the polar electrojet by powerful HF waves. Journal Geophysical Research 82, S. 2319 - 2325 (1977)

Kopka, H.; Daly, P. W.: A Guide to LaTeX 2e: Document Preparation for Beginners and Advanced Users, (2nd edition). Addison-Wesley, Wokingham (1995), 553 S.

Lefeuvre, F.; Rauch, J. L.; Dee, V. I.; Titova, E. E.; Yurov, Y. E.; Molchanov, O. A.; Mogilevsky, M. M.; Maltseva, O. A.; Zinin, L. V.; Kopka, H. et al.; Rietveld, M. T.; Stubbe, P.; Dowden, R. L.: Detection from Aureol-3 of the modulation of auroral electrojet by HF heating from ELF signals in the upper ionosphere above Tromsø. In: Results of the Arcad-3 project and of the recent programmes in magnetospheric and ionospheric physics, S. 609 - 619. Cepadues-Editions, Toulouse, France (1985)

Stubbe, P.; Kopka, H.: Modification of the F region by powerful radio waves. In: Exploration of the Polar Upper Atmosphere, S. 83 - 98 (Hg. Deehr, C. S.; Holtet, J. A.). D. Reidel Publishing Company, Dordrecht (1980)

Kopka, H.; Pruchniewicz, G.; Schlegel, K.; Stubbe, P.: Zukunftsaspekte in der Aeronomie. In: Institut für Ionosphärenphysik im Max-Planck-Institut für Aeronomie 1946-1971, Festschrift zum 25jährigen Bestehen des Instituts für Ionosphärenphysik in Lindau am Harz, S. 225 - 228 (Hg. Dieminger, W.). Hubert & Co., Göttingen (1972)

Rietveld, M. T.; Barr, R.; Stubbe, P.; Maul, A.; Kopka, H.; Dowden, R. L.: VLF, ELF and ULF research using the Tromsø heating facility. In: AGARD Conference Proceedings No. 485, Bergen, 28.-31. Mai 1990, 6-1 bis 6-10. (1990)

Grandal, B.; Rose, G.; Holtat, J.; Måseide, K.; Neske, E.; Ott, W.; Spenner, K.; Trøim, J.; Kopka, H.; Stubbe, P.: Preliminary results from the HERO project: In situ measurements of ionospheric modifications using sounding rockets. In: ESA Conference Proceedings SP-195 on ``Active Experiments in Space'' (Alpbach, Austria, 24-28 May 1983), S. 75 - 80. (1983)

Jones, T. B.; Robinson, T.; Stubbe, P.; Kopka, H.: Anomalous absorption effects produced by high power radio waves in the high latitude ionosphere. In: AGARD Conference Proceedings on Propagation Aspects of Frequency Sharing, Interference and System Diversity, S. 5-1}-{5-9. (1983)

Kohl, H.; La Hoz, C.; Folkestad, K.; Hansen, T.; Kopka, H.; Rose, G.; Stubbe, P.: The electron and ion spectra of radar returns from the critical height during ionospheric heating experiments. In: ESA Conference Proceedings SP-195 on ``Active Experiments in Space'' (Alpbach, Austria, 24-28 May 1983), S. 91 - 97. (1983)

Rose, G.; Grandal, B.; Neske, E.; w., O.; Spenner, K.; Trøim, J.; Holtet, J.; Måseide, K.; Kopka, H.; Stubbe, P.: First results of the in situ measurements of the HERO heating campaign. In: ESA Conference Proceedings SP-183 on ``European Rocket and Balloon Programmes'' (Interlaken, Switzerland, 14-15 April 1983), S. 263 - 267. (1983)

Stubbe, P.; Kopka, H.: Summary of ionospheric heating experiments at Tromsø. In: ESA Conference Proceedings SP-195 on ``Active Experiments in Space'' (Alpbach, Austria, 24-28 May 1983), S. 47 - 50. (1983)

Stubbe, P.; Kopka, H.; Rietveld, M. T.; Dowden, R. L.: Generation of ELF and VLF waves by modulated HF heating of the polar electrojet. In: AGARD Conference Proceedings on Medium, Long and Very Long Wave Propagation, S. 9-1 - 9-6. (1982)

Stubbe, P.; Kopka, H.; Brekke, A.; Hansen, T.; Holt, O.; Dowden, R. L.; Jones, T. B.; Robinson, T.; Lotz, H.-J.; Watermann, J.: First results from the Tromsø ionospheric modification facility. In: AGARD Conference Proceedings on the Physical Basis of the Ionosphere in the Solar-Terrestrial System, S. 16-1-16-9. (1980)

Stubbe, P.; Kopka, H.; Rose, G.: Rocket experiments in conjunction with the ionospheric modification experiment in northern Norway. In: Proc. Esrange Symp., Ajaccio, Korsika 24.-29.4., S. 107 - 111. ESA Publ. Div., Noordwijk (1978)