Zecha, M.; Röttger, J.; Singer, W.; Hoffmann, P.; Keuer, D.: Scattering properties of PMSE irregularities and refinement of velocity estimates. Journal of Atmospheric and Terrestrial Physics 63, pp. 201 - 214 (2001)
Luce, H.; Röttger, J.; Crochet, M.; Yamamoto, M.; Fukao, S.: The scattering layer thickness and position estimatet by radar frequency domain interferometry; Part II: Effects of the scattering layer and radar beam tilts. Radio Science 35, pp. 1109 - 1127 (2000)
Luce, H.; Röttger, J.; Yamamoto, M.; Fukao, S.: The scattering layer thickness and position estimatet by radar frequency domain interferometry; Part I: Effects of the limited horizontal extent and advection of the scattering layers. Radio Science 35, pp. 119 - 131 (2000)
Röttger, J.: Radar investigations of the mesosphere, stratosphere and the troposphere in Svalbard. Adv. Polar Upper Atmos. Res. 14, pp. 202 - 220 (2000)
Brandolini, A.; Balsley, B. B.; Mabres, A.; Woodman, R. F.; Capsoni, C.; D'Amico, M.; Ecklund, W. L.; Hagfors, T.; Harper, R.; Heron, M. L.et al.; Hocking, W. K.; Lehtinen, M. S.; Röttger, J.; Sarango, M. F.; Sato, T.; Strauch, R. J.; Vaughn, J. M.; Wyatt, L. R.; Zrnic, D. S.: Report from the I}nternational {W}orkshop on {R}emote {S}ensing in {G}eophysics {U}sing {D}oppler {Techniques. Bull. Amer. Meteor. Soc. 79 (4), pp. 643 - 656 (1998)
Pan, C. J.; Liu, C. H.; Röttger, J.; Su, S. Y.; Liu, J. Y.: E region observations over Chung-Li during the SEEK campaign. Geophysical Research Letters 25, pp. 1805 - 1808 (1998)
Cho, Y. N.; Röttger, J.: An updated review of polar mesosphere summer echoes: Observations, theory, and their relationship to noctilucent clouds and subvisible aerosols. Journal Geophysical Research 102, pp. 2001 - 2020 (1997)
Hocking, W. K.; Röttger, J.: Studies of polar mesosphere summer echoes over EISCAT using calibrated signal strengths and statistical parameters. Radio Science 32, pp. 1425 - 1444 (1997)
Wannberg, G.; Wolf, I.; Vanhainen, L. G.; Koskenniemi, K.; Röttger, J.; Postila, M.; Markannen, J.; Jacobsen, R.; Stenberg, A.; Larsen, R.et al.; Eliassen, S.; Heck, S.; Huuskonen, A.: The EISCAT Svalbard Radar: A case study in modern incoherent scatter radar system design. Radio Science 32, pp. 2283 - 2307 (1997)
Röttger, J.; Hocking, W. K.: Preface in special issue: Ionosphere-Middle and Lower Atmosphere Interactions. Journal of Atmospheric and Terrestrial Physics 58, pp. 641 - 643 (1996)
Röttger, J.; Hocking, W. K.: Ionosphere-Middle and Lower Atmospheric Interactions. Journal of Atmospheric and Terrestrial Physics 58, pp. 641 - 643 (1996)
Alcala, C. M.; Röttger, J.; Kelley, M. C.: Spatial interferometry measurements of polar mesosphere summer echoes with the EISCAT VHF radar. Radio Science 30, pp. 1205 - 1218 (1995)
Bremer, J.; Singer, W.; Keuer, D.; Hoffmann, P.; Röttger, J.; Cho, J. Y. N.; Swartz, W. E.: Observations of polar mesosphere summer echoes at EISCAT during summer 1991. Radio Science 30, pp. 1219 - 1228 (1995)
Huang, C. M.; Kudeki, E.; Franke, S. J.; Liu, C. H.; Röttger, J.: Brightness distribution of midlatitude E region echoes detected at the Chung-Li VHF radar. Journal Geophysical Research 100, pp. 14703 - 14715 (1995)
Röttger, J.; Liu, C. H.; Pan, C. J.; Su, S. Y.: Characteristics of lightning echoes observed with VHF ST radar. Radio Science 30, pp. 1085 - 1097 (1995)
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).