Haldoupis, C. I.; Nielsen, E.: Results on relative scattering cross section of 140 MHz auroral backscatter. Journal Geophysical Research 89, p. 2305 (1984)
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)
Lin, C. S.; Sugirua, M.; Burch, J. L.; Barfield, J. N.; Nielsen, E.: DE-1 observations of Type-1 counterstreaming electrons and field-aligned currents. Journal Geophysical Research 89, p. 8907 (1984)
Mazaudier, C.; Blanc, M.; Nielsen, E.; Zi, M.: Latitudinal profile of the magnetospheric convection electric field at ionospheric altitdes from a chain of magnetic and radar data. Journal Geophysical Research 89, p. 375 (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)
Rietveld, M. T.; Barr, R.; Kopka, H.; Nielsen, E.; Stubbe, P.; Dowden, R. L.: Ionospheric heater beam scanning: A new technique for ELF studies of the auroral ionosphere. Radio Science 19, p. 1069 (1984)
Walker, A. D. M.; Nielsen, E.: STARE observations of an eastward propagating Pc5 pulsation with large azimuthal wavenumber. Geophysical Research Letters 11, p. 259 (1984)
Zi, M. Y.; Nielsen, E.: A case study for imperfect magnetosphere-ionosphere coupling by STARE-TRIAD observations. Chinese Journal of Space Science 4, p. 34 (1984)
Allan, W.; Poulter, E. M.; Glassmeier, K. H.; Nielsen, E.: Ground magnetometer detection of a large in Pc5 pulsation observed with the STARE radar. Journal Geophysical Research 88, p. 183 (1983)
Allan, W.; Poulter, E. M.; Nielsen, E.: Pc5 pulsations associated with ring current proton drifts: STARE radar observations. Planetary and Space Science 31, p. 1279 (1983)
Haldoupis, C. I.; Nielsen, E.: Simultaneous geomagnetic and radio auroral observations. Journal of Atmospheric and Terrestrial Physics 45, p. 543 (1983)
Hibberd, F. H.; Nielsen, E.; Stubbe, P.; Kopka, H.: Production of auroral zone E-region irregularities by ionospheric heating. Journal Geophysical Research 88, p. 6347 (1983)
Nielsen, E.; Güttler, E.; Thomas, E. C.; Stewart, C. P.; Jones, T. B.; Hedberg, E.: A new radar auroral backscatter experiment. Nature 304, p. 712 (1983)
Nielsen, E.; Schlegel, K.: A first comparison of STARE and EISCAT electron drift velocity measurements. Journal Geophysical Research 88, pp. 5745 - 5750 (1983)
Nielsen, E.; Schlegel, K.: Elektrische Felder in der polaren Ionosphäre mit STARE und EISCAT - Ein erster Vergleich. Kleinheubacher Berichte 26, p. 143 (1983)
The Uranian magnetic field is more expansive than previously thought, according to newly analyzed data from Voyager 2, making it easier to search for moons with oceans.
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).