Schlegel, K.: Measurements of electron density fluctuations during the ROSE rocket flights. Journal of Atmospheric and Terrestrial Physics 54, pp. 715 - 723 (1992)
Jakowsky, N.; Jungstand, A.; Schlegel, K.; Kohl, H.; Rinnert, K.: Zur Entwicklung und Ausbreitung eines ionosphärischen Sturms am 28./29. Juli 1987. Kleinheubacher Berichte 34, pp. 229 - 237 (1991)
Jones, B.; Williams, P. J. S.; Schlegel, K.; Robinson, T.; Häggström, I.: Interpretation of enhanced electron temperatures measured in the auroral E-region during the ERRRIS campaign. Annales Geophysicae 9, pp. 55 - 59 (1991)
Kunitake, M.; Schlegel, K.: Neutral winds in the lower thermosphere at high latitudes from five years of EISCAT data. Annales Geophysicae 9, pp. 143 - 155 (1991)
McCrea, I. W.; Schlegel, K.; Nygrén, T.; Jones, T. B.: COSCAT, a new auroral radar facility on 930 MHz-system description and first results. Annales Geophysicae 9, pp. 461 - 469 (1991)
Abe, T.; Oyama, K.-I.; Amemiya, H.; Watanabe, S.; Okuzawa, T.; Schlegel, K.: Measurements of temperature and velocity distribution of thermal electrons by the Akebono (EXOS-D) satellite - Experimental setup and preliminary results. Journal of Geomagnetism and Geoelectricity 42, pp. 537 - 554 (1990)
Häggström, I.; Opgenoorth, H.; Williams, P. J. S.; Jones, G. O. L.; Schlegel, K.: Application of alternating codes for EISCAT observations during the ERRRIS campaign for E-region plasma irregularities. Journal of Atmospheric and Terrestrial Physics 52, pp. 431 - 438 (1990)
Haldoupis, C.; Nielsen, E.; Schlegel, K.: Dependence of radar auroral scattering cross section on the ambient electron density and the destabilizing electric field. Annales Geophysicae 8, pp. 195 - 212 (1990)
Haldoupis, C.; Schlegel, K.: Direct comparison of 1-m irregularity phase velocities and ion acoustic speeds in the auroral E region ionosphere. Journal Geophysical Research 95, pp. 18989 - 19000 (1990)
Moorcroft, D. R.; Schlegel, K.: Height and aspect sensitivity of large aspect angle coherent backscatter at 933 MHz. Journal Geophysical Research 95, pp. 19011 - 19021 (1990)
Natorf, L.; Schlegel, K.; Wernik, A. W.: Heat input into the high latitude ionosphere derived from EISCAT measurements. Annales Geophysicae 8, pp. 223 - 228 (1990)
Schlegel, K.; Turunen, T.; Moorcroft, D. R.: Auroral radar measurements at 16 cm wavelength with high range and time resolution. Journal Geophysical Research 95, pp. 19001 - 19009 (1990)
Shirochkov, A. V.; Makarova, L. N.; Maurits, S. A.; Schlegel, K.: Response of the auroral ionosphere to solar wind parameter variations. Annales Geophysicae 8, pp. 353 - 356 (1990)
Araki, T.; Schlegel, K.; Lühr, H.: Geomagnetic effects of the Hall and Pedersen current flowing in the auroral ionosphere. Journal Geophysical Research 94, pp. 17185 - 17199 (1989)
Kofman, W.; Schlegel, K.; Lovhaug, U. P.; Lockwood, M.; Winser, K. J.: Comment on ``The effect of strong velocity shears on incoherent scatter spectra: A new interpretation of unusual high latitude''. Geophysical Research Letters 16, pp. 337 - 338 (1989)
Natorf, L.; Wernik, A. W.; Wodnicka, E. B.; Schlegel, K.: Detecting travelling ionospheric disturbances in incoherent scatter data using the Maximum Entropy Method. Journal of Atmospheric and Terrestrial Physics 51, pp. 389 - 400 (1989)
Shen, C.-S.; Luo, Y.; Schlegel, K.: The feature of ionosphere in the auroral zone and the magnetosphere-ionosphere coupling. Chinese Journal of Space Science 9, pp. 127 - 135 (1989)
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).