Ierkic, H. M.; Haldoupis, C.; Moorcroft, D. R.; Nielsen, E.: Coherent radar interferometry of vertical irregularity structures in the auroral E region. Radio Science 27, pp. 743 - 758 (1992)
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)
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)
Röttger, J.; Larsen, M. F.; Ierkic, H. M.; Hagfors, T.: Need for a subtropical wind profiling system. Handbook for MAP (Middle Atmosphere Program) 20, pp. 86 - 89 (1986)
Hagfors, T.; Gold, T.; Ierkic, H. M.: Refraction scattering as origin of the anomalous radar returns of Jupiter's satellites. Nature 315 (6021), pp. 637 - 640 (1985)
Röttger, J.; Ierkic, H. M.: Postset beam steering and interferometer applications of VHF radars to study winds, waves and turbulence in the lower and middle atmosphere. Radio Science 20, pp. 1461 - 1480 (1985)
Haldoupis, C. I.; Nielsen, E.; Ierkic, H. M.: STARE Doppler spectral studies of westward electrojet radar aurora. Planetary and Space Science 32, p. 1291 (1984)
Ierkic, H. M.; Röttger, J.: Mesospheric measurements of irregularity patches using a 3-antenna interferometer. Handbook for MAP 14, pp. 174 - 178 (1984)
Nielsen, E.; Haldoupis, C. I.; Fejer, B. G.; Ierkic, H. M.: Dependence of auroral power spectral variations upon electron drift velocity in the eastward electrojet. Journal Geophysical Research 89, pp. 253 - 260 (1984)
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)
Whitehead, J. D.; Ierkic, H. M.; Nielsen, E.: Splitting and divergence of ``STARE'' auroral radar velocities. Journal Geophysical Research 88, p. 2147 (1983)
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.
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.
The magnetic field in the solar atmosphere exceeds the geomagnetic field strength by four orders of magnitude. It greatly influences the processes of energy transport within the solar atmosphere, and dominates the morphology of the solar chromosphere and corona. Kinetic energy from convective motions in the Sun can be efficiently stored in magnetic fields and subsequently released - to heat the solar corona to several million degrees or to blast off coronal mass ejections.
Application deadline 1 October 2024. PhD projects in planetary science, solar and stellar physics, solar magnetism, heliophysics, helioseismology, asteroseismology, ...