Publications of E. Nielsen

Haldoupis, C.; Nielsen, E.: 140 MHz auroral backscatter: evidence for characteristic phase acoustic speed. Geophysical Research Letters 16, p. 723 (1989)

Haldoupis, C.; Nielsen, E.: Very large phase velocities of non two-stream, meter scale irregularities in the high latitude E region ionosphere. Journal Geophysical Research 94, p. 13489 (1989)

Kustov, A.; Uspensky, M.; Kangas, J.; Huuskonen, A.; Nielsen, E.: On the threshold electric field for a 1-m auroral irregularity kapearance. Journal Geophysical Research 94, p. 12043 (1989)

Opgenoorth, H. J.; Bromage, B.; Fontaine, D.; La Hoz, C.; Huuskonen, A.; Kohl, H.; Lovhaug, U.-P.; Wannberg, G.; Gustafsson, G.; Murphre, J. S. et al.; Eliasson, L.; Marklund, G.; Potemra, T. A.; Kirkowood, S.; Nielsen, E.; Wahlund, J. E.: Coordinated observations with EISCAT and the Viking satellite: The decay of a westward travelling surge. Annales Geophysicae 7, pp. 479 - 500 (1989)

Uspensky, M. V.; Kustov, A. V.; Williams, P. J. S.; Huuskonen, A.; Kangas, J.; Nielsen, E.: Effects of unresolved electrojet microstructure on measurements of irregularity drift velocity in auroral radar backscatter. Advances in Space Research 9, p. 5119 (1989)

McDiarmid, D. R.; Nielsen, E.: A monochromatic Pc5 pulsation which exhibits a time-varying doppler-shifted frequency. Journal Geophysical Research 93, p. 1981 (1988)

Nielsen, E.: Aspect angle dependence of backscatter intensity of 1-m auroral plasma waves. Journal Geophysical Research 93, p. 4119 (1988)

Nielsen, E.; Bamber, J.; Chen, Z.-S.; Brekke, A.; Egeland, A.; Murphree, J. S.; Venkatesan, D.; Axford, W. I.: Substorm expansion into the polar cap. Annales Geophysicae 6, pp. 559 - 572 (1988)

Nielsen, E.; Senior, C.; Lühr, H.: Ionospheric hall conductivity deduced from ground-based measurements. Journal Geophysical Research 93, p. 4125 (1988)

Nielsen, E.; Uspensky, M.; Kustov, A.; Huuskonen, A.; Kangas, J.: On the dependence of the Farly-BUneman turbulence level on ionospheric electric field. Journal of Atmospheric and Terrestrial Physics 50, p. 601 (1988)

Haldoupis, C.; Nielsen, E.: Doppler spectrum observations of long discrete echoes. Planetary and Space Science 35, p. 153 (1987)

Mazaudier, C.; Senior, C.; Nielsen, E.: Global convection electric field and current: Comparisons between model's predictions and data from STATE, Saint-Santin, and Magnetometers. Journal Geophysical Research 92, p. 5991 (1987)

McDiarmid, D. R.; Nielsen, E.: Coherent radar observations of a storm sudden commencement having a preliminary reverse impulse. Journal Geophysical Research 92, p. 159 (1987)

McDiarmid, D. R.; Nielsen, E.: Stimultaneous observation of monochromatic and variable period geomagnetic pulsations. Journal Geophysical Research 92, p. 4445 (1987)

Rietveld, M. T.; Mauelshagen, H.-P.; Stubbe, P.; Kopka, H.; Nielsen, E.: The characteristics of ionospheric heating-produced ELF/VLF waves over 32 hours. Journal Geophysical Research 92, p. 8707 (1987)

Shen, C.-S.; Nielsen, E.: The spatial component of ionospheric electron flow derived from two-dimensional drift measurements. Journal Geophysical Research 92, p. 305 (1987)

Shen, C. S.; Nielsen, E.: The spatial component of ionospheric electron flow derived from two-dimensional drift measurements. Journal Geophysical Research 92, p. 305 (1987)

Basu, S.; Basu, S.; Senior, C.; Weimer, D.; Nielsen, E.; Fougere, P. F.: Velocity shears and sub-km scale irregularities in the nighttime auroral F-region. Geophysical Research Letters 13, p. 101 (1986)

Hanuise, C.; Hedberg, A.; Oksman, J.; Nielsen, E.; Stubbe, P.; Kopka, H.: Comparison between the ionospheric plasma drift and the motion of artificially induced irregularities as observed by HF backscatter radars. Annales Geophysicae 4, p. 49 (1986)

Hoeg, P.; Nielsen, E.; Stubbe, P.; Kopka, H.: Heater-induced 1-meter irregularities. Journal Geophysical Research 91, p. 11309 (1986)